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STL - LON

Find cheap flights from St. Louis to London from £178

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to London departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 31/5
Fri 7/6

Search hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to London, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,740,974 times on KAYAK, and here's why:

Save 28% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from St. Louis to London (STL-LON)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:57 - 10:00STL-LGW
16h 03m1 stop
14:00 - 07:07LGW-STL
23h 07m1 stop
Tue, 18 Jun - Mon, 24 Jun
19:48 - 10:00STL-LGW
32h 12m1 stop
12:00 - 10:46LGW-STL
28h 46m1 stop
Thu, 19 Sep - Tue, 24 Sep
14:05 - 10:00STL-LGW
13h 55m2 stops
12:00 - 23:39LGW-STL
17h 39m2 stops
£547Virgin Atlantic
Find Deal
Tue, 20 Aug - Tue, 27 Aug
14:05 - 08:55STL-LHR
12h 50m2 stops
09:55 - 19:14LHR-STL
15h 19m2 stops
£576Virgin Atlantic
Find Deal
Tue, 20 Aug - Tue, 27 Aug
17:30 - 09:00STL-LHR
33h 30m1 stop
09:30 - 21:05LHR-STL
17h 35m1 stop
£621United Airlines
Find Deal
Sat, 10 Aug - Sat, 31 Aug
17:30 - 05:55STL-LHR
30h 25m1 stop
13:05 - 21:52LHR-STL
14h 47m1 stop
£625United Airlines
Find Deal
Sat, 10 Aug - Sat, 31 Aug
06:26 - 22:10STL-LHR
9h 44m1 stop
11:05 - 17:14LHR-STL
12h 09m1 stop
£631British Airways
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Sun, 8 Sep - Tue, 24 Sep
19:56 - 14:25STL-LHR
12h 29m1 stop
19:25 - 17:14LHR-STL
27h 49m2 stops
£645British Airways
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Wed, 18 Sep - Tue, 24 Sep
11:10 - 10:30STL-LGW
17h 20m2 stops
17:45 - 13:30LGW-STL
25h 45m1 stop
£686Lufthansa
Find Deal
Tue, 21 May - Thu, 30 May
11:10 - 16:25STL-LCY
23h 15m2 stops
09:15 - 13:30LCY-STL
34h 15m1 stop
£714Lufthansa
Find Deal
Tue, 21 May - Thu, 30 May

Flights from St. Louis to London - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to London to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to London?

The average price of all flights from St. Louis to London clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to London on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from St. Louis to London. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

What is the cheapest month to fly from St. Louis to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to London is February, where tickets cost £575 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is £1,149 and £1,037 respectively.

How far in advance should I book a flight from St. Louis to London?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to London, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to London, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 62 days before departure.

Which airlines provide the cheapest flights from St. Louis to London?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from St. Louis to London found on KAYAK was with Iberia for £457. Virgin Atlantic proposed a return connection from £547 and Delta from £568.

Good to know - Cheap tickets from St. Louis to London

Low season

January

High season

June

Cheapest flight

£178
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (54% more expensive on average)
Flight from St. Louis to London Gatwick Airport

When to book flights from St. Louis to London

Are your dates flexible? Find out the best times to travel from St. Louis to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to London

  • Are there airport hotels at Lambert St Louis?

    There are many hotels to choose from near Lambert St Louis. Choose a luxury stay at the Hilton Hotel, offering a pool, dining and airport shuttle service. The closest hotel to the airport is Drury Inn and Suites, only a 2min drive away.

  • What special assistance is available at Lambert St Louis?

    Wheelchair access is available at each entrance, and inside the terminal, you will find accessible restrooms, low-level ATMs for wheelchair users and elevators. There is an area for service animals, and Braille text is used on signage throughout. If you require assistance boarding the plane, we recommend contacting your airline at least 48h prior to departure to book a skycap.

  • Which London airport is closest to Central London?

    London City and London Heathrow are the most centrally-located London airports. You can get from Heathrow to the city centre on the Heathrow Express in around 20min with services running roughly every 15min. If you're travelling from London City Airport, you can take the Docklands Light Railway (DLR) from the airport station to Canning Town, where you can change to a London Underground or bus service to your final destination. The journey time should take on average around 40min - 1h.

  • What facilities are offered at St Louis Airport?

    Services available at St Louis Airport range from banking and currency exchange to luggage trolley rental. You can access Wi-Fi for free for 60min, with a small fee applicable for longer use. For anyone wishing to partake in prayer or other religious obligations, St Louis Interfaith Chapel is located on site. Shoe-shining facilities are available in each terminal, and help location points allow tourists to seek advice or assistance when navigating the airport. You can choose from several restaurants to eat at and newsagents and gift shops to browse whilst you wait for boarding to start.

  • What is the cheapest flight from St. Louis to London?

    In the last 3 days, the lowest price for a flight from St. Louis to London was £222 for a one-way ticket and £524 for a return.

  • Which airports will I be using when flying from St. Louis to London?

    St. Louis is served by only 1 airport and there are 3 airports in London. You will leave St. Louis from Lambert-St Louis and you will be arriving in London at one of these airports: London Gatwick, London Heathrow, or London Stansted.

  • Which aircraft models fly most regularly from St. Louis to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to London?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and London, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to London, Virgin Atlantic or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to London are Virgin Atlantic and United Airlines. With an average price for the route of £608 and an overall rating of 7.7, Virgin Atlantic is the most popular choice. United Airlines is also a great choice for the route, with an average price of £790 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to St. Louis with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from St. Louis to London

  • There are many transportation options to travel to St Lambert Louis Airport (STL) from St Louis. The Metrolink is an affordable choice taking around 30min to arrive at the airport. Alternatively, the bus journey is about 55min inclusive of one change, and driving by car or taxi takes about 18min.
  • If you're travelling on business, St Louis has a choice of lounges from which you can work. Wingtips Lounge is located in Terminal 2 and offers great accessibility with entry via membership and single visit passes. Enjoy a seasonal-inspired menu whilst you utilise the fast Wi-Fi and benefit from air conditioning. The lounge is available to use for a maximum of 4h.
  • Lambert St Louis has seven car parks, each within walking distance of the airport, with a free shuttle service available. Long-term parking is also available, although we recommend booking in advance to save time before your flight. Short-term parking is perfect if you're being dropped off at the airport, with both hourly and daily rates available.
  • Lambert St Louis has two terminals. Terminal 1 has four concourses from A to D, serving domestic flights. Flights from Lambert St Louis to London will depart from Terminal 2, which caters for all international flights and is located on the southern end of the complex. You can fly to one of three London airports: Heathrow (LHR), Gatwick (LGW) and London City (LCY).
  • If you're travelling with the family, make the most of Lambert St Louis' Play Port – a transport-themed play exhibit. The exhibit offers both fun and education with features such as a child-size plane and air control tower. Baby-changing facilities are available throughout the airport, along with lactation suites for breastfeeding mothers.
See more tips

Top 5 airlines serving from St. Louis to London

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
Virgin AtlanticOverall score based on 744 reviews
8.3Crew
7.4Comfort
7.8Boarding
7.7Entertainment
7.1Food
Airline reviews

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

6.0 GoodSonia, Apr 2024LAX - LHR
Read more about Virgin Atlantic reviews

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

Quick flight. But cabin crew were very noisy and talking too much, especially when we were seated at the back of the plane trying to sleep through the night .

My ticket was for Premium Economy and all the seats were taken, I was placed in Economy class and I’m looking for a refund.

The delay was an issue. Other than that. Every thing good

Staff didn’t check cabin well for landing seemed more interested in chatting to each other. Food was poor and differed from pre order.

We were in the last group to be called to the flight - which was 30 minutes late taking off. While we were lucky enough to have been given bulkhead seats (due to a medical condition I’d told them about beforehand) the seats weren’t particularly comfortable. A crying baby for the whole trip made things worse, so the crew managed very well with coping. The final thing I’d say was that there wasn’t enough food served during the flight.

Very good. Glad we had Premium for the flight out.

We flew Upper Class from London to The Turks and Caicos. Check in was amazing. Our ldriver too us directly to a special entrance to terminal 3. It took 10 minutes to check in and clear customs. Amazing! The VA lounge is large and comfortable. Boarding the flight was easy and without a wait. The crew was excellent. But the seats were awful, strange and uncomfortable. Having a comfortable flat bed seat is the reason we pays 1000s extra. The VA 787 uses a reverse herringbone configuration. Look it up. You have your back to the window and are facing the aisle with no privacy. Turning the seat into a bed requires assistance from the crew so not very spontaneous. . The food was ok. A bit tasteless and meager portions. Had to pay for WiFi. I believe VA has other configuration on their dream airbus flights. Lots of stuff about all this on YouTube where you can see what I have been describing. I can not recommend taking VA on a long flight with these seats.

From the start everything was perfectly fine. First meal was fantastic. Breakfast needs a lot of work and food was overcooked and not very nice for breakfast. Staff were fantastic friendly nice they came round and check we need anything else to eat or drink

From the start everything was perfectly fine. First meal was fantastic. Breakfast needs a lot of work and food was overcooked and not very nice for breakfast. Staff for a fantastic friendly nice we came round and check we need anything else to eat or drink

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Food was terrible Not many options Stewards dont care Delay

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

The ride was good but no food ot entertainment hence, it was just over an hour flight.

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

American Airlines continues to price it can provide the least comfortable passenger experience in the air. This legacy carrier rivals the budgets for both terrible seats and inadequate amenities. I am a 5’7” woman who is not wider than a coach seat (even on these narrow bodied aircraft). My 3.5 hour flight was terribly uncomfortable because the leg room is inadequate (my knees hit the seat on front of me even when it was not reclined); the seat barely reclines; and the foam padding is worn thin to the extent one can feel the metal supports of the seat. Add to this the fact that the aisle is super narrow, so that the drink cart literally scrapes the arm rest of the aisle seat. It’s basically torture.

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

This was not the BA business class it used to be. Mediocre food, attendants seemed stretched thin. All the little luxuries that used to make BA business fun were missing. Flight delayed and the explanation given was they forgot to pick up crew - I hope I misheard! Transfer in LHR “sticky” - we thought we had way too much time at 3hours but it was needed. Next time will try different route.

Always getting updates by email very easy to check in on line. There was plenty of checking in staff to get you all through. It was nice that the flight attendants took time to talk to you and were interested in your holiday.

Flight from Phoenix to London was very quiet. Excellent space available for comfort, couldn't fault

Food was very average. And top up drinks offer was absent. For a 11 hour long flight that should be the minimum. The crew didn't want to be there. I understand it was new year day but given they had signed up for it

Both flights were late for what appeared to be the airline’s not having the planes ready. Arrived over 6 hours late.

Try to humanize onboarding and take AI out. It's embarrassing and useless

It was a busy flight and all the crew were very helpful and gracious

Seats were not the most comfortable and food options weren’t great but overall but everything else was excellent

Check-in very easy and smooth. Plane and crew were nice. Seat open next to me created more space. Food was fair but plentiful. Lots of movies and I was able to sleep some on the way to Munich. Very tight connection, about an hour. Fast through passport control and a bit of a walk to last G terminal gate but I made my connection to Palma. Unfortunately, my luggage did not make it. It is now almost 24 hours since I anded and still NO luggage. I know it landed last night on another flight. Local delivery should be today to my hotel in Palma but nothing yet. I asked about the tight connection when I checked in and was assured they would get my luggage to the connecting flight. Very disappointing it missed my flight but more disappointing that it has taken so long to arrive. Failure on the airlines and service to get my luggage to date.

I wish the flight attendant was a little bit kinder

The food wasn’t great and it would be nice if the airlines showed documentaries about the countries we are flying into.

Disappointed everytime. The app doesn't load the boarding passes. They have lots of agent that seem to be busy doing nothing with a long line waiting to get paper boarding passes. Food choices are poor. Entertainment is less than entertaining.

Horrible experience. Nothing to give to kids to keep them entertained.

I think I have bruises on my kneecaps. Do the seats have to be so close together these days? And if they are so close they really shouldn’t recline. I think when the gentleman in front of me reclined, the back of his head was on my chin. That being said the crew were always caring and polite, and the flight was on time and very safe. So I’m grateful for that.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Overall, terrific service, accommodations, and experience. Only reason comfort was rated lower was because it was difficult to keep a comfortable sleeping position for the overnight flight, but I also had an economy seat.

Very cramped seats in economy, difficult to get comfortable with your legs and feet and back. The seat width is ok but I’m average size. Food is HORRIBLE. Crew is friendly. Delays and very tight connections made it tough for navigating. We would have missed our connecting flight if it wasn’t delayed too. The terminal transit was slow and normally every 10 minutes before 8pm, after 8 pm is every 30 minutes!!!!! No free wine or drinks!! Below average attitude.

Leg room was better than expected. Lavatory’s were easy to access.crew was grea!

Horrible seat allocation. Boarding was slow. Food was average and so was entertainment. The TV terminal didn't work and so had to use remote.

Lost one checked bag.and wasted 30min waiting and filing missing baggage report. Very unsatisfied.

This was an American Airlines flight. The crew were very unhappy and quite grumpy. Abrupt to the point of being rude. The food was dreadful. Indeed the breakfast was in edible. I will avoid AA at all costs in the future.

Book cheap flights from St. Louis to London

Cheapest flights to London from St. Louis found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to London found on KAYAK in the last 72 hours.
9/9Mon
1 stop
30h 40mSTL-LGW
£178
10/9Tue
1 stop
13h 25mSTL-LGW
£193
11/9Wed
1 stop
35h 29mSTL-LGW
£194
3/8Sat
1 stopBritish Airways
30h 26mSTL-LHR
£477
10/7Wed
2 stopsBritish Airways
18h 13mSTL-LCY
£505
3/8Sat
2 stopsVirgin Atlantic
17h 05mSTL-LGW
£507
14/8Wed
1 stopLufthansa
21h 10mSTL-LCY
£520
11/9Wed
1 stopLufthansa
21h 10mSTL-LCY
£526
31/5Fri
2 stopsUnited Airlines
16h 30mSTL-LCY
£904
7/10Mon
2 stopsVirgin Atlantic
13h 55mSTL-LGW
£2,823

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Last minute flights from St. Louis to London

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to London that are departing in the next 10 days.
2/5Thu
multi-stop
53h 01mSTL-LGW
8/5Wed
multi-stop
23h 13mLGW-STL
£663
4/5Sat
multi-stop
16h 21mSTL-LGW
31/5Fri
multi-stop
26h 28mLGW-STL
£687
2/5Thu
multi-stop
17h 05mSTL-LHR
6/5Mon
multi-stop
28h 56mLHR-STL
£691
2/5Thu
multi-stop
32h 30mSTL-LGW
8/5Wed
multi-stop
23h 13mLGW-STL
£716
2/5Thu
multi-stop
31h 25mSTL-LGW
6/5Mon
multi-stop
32h 35mLGW-STL
£791
4/5Sat
multi-stopTurkish Airlines
34h 25mSTL-LGW
31/5Fri
multi-stopTurkish Airlines
29h 41mLGW-STL
£1,301
2/5Thu
multi-stopAmerican Airlines
13h 54mSTL-LHR
1/8Thu
multi-stopAmerican Airlines
15h 47mLHR-STL
£1,351
2/5Thu
multi-stopBritish Airways
12h 08mSTL-LHR
6/5Mon
multi-stopBritish Airways
29h 36mLHR-STL
£1,384
2/5Thu
multi-stopAmerican Airlines
16h 59mSTL-LHR
6/5Mon
multi-stopAmerican Airlines
17h 07mLHR-STL
£1,413
2/5Thu
multi-stopLufthansa
18h 13mSTL-LCY
9/5Thu
multi-stopLufthansa
24h 20mLCY-STL
£1,438

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Search by price

St. Louis - London Flights

Departure:

St. Louis (STL)United States

Return flight deals:

London - St. Louis

Cabin classes: