STL - LON

£168 Find Cheap Flights from St. Louis to London – Compare and Save

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 14/7. 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
1 adult, Economy, 0 bags

KAYAK searches 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
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Everything you should know

Cheapest return fare
£797
Typical prices: £698-£488
Lufthansa
Sat 5/9Sun 13/9
STL - LHR • 2 stops
Cheapest direct flights
£808
American Airlines
Wed 26/8Wed 2/9
STL - LHR • Direct
Direct flights
Tue, Wed, Fri, Sun
You can fly direct with British Airways. Average duration is 8h 00m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
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Top stopover airports
Cheapest • Avg £544 (return)
Shortest trip • 10h 30m (one-way)
Insights
Insights
Insights
Insights
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 73% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to travel
Cheapest • 76% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return 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 for you by selecting your travel dates on KAYAK.

Recent return flight deals from St. Louis to London

Sat, 5 Sep - Sun, 13 Sep
Lufthansa Logo
18:54 - 16:40
STL
-
LHR
15h 46m
2 stops
Lufthansa Logo
06:30 - 21:36
LHR
-
STL
21h 06m
2 stops
£797Lufthansa
Wed, 22 Jul - Tue, 28 Jul
Multiple Airlines Logo
08:55 - 17:55
STL
-
LGW
27h 00m
2 stops
Multiple Airlines Logo
16:50 - 13:25
LGW
-
STL
26h 35m
2 stops
£797Multiple Airlines
Fri, 4 Sep - Sat, 12 Sep
Multiple Airlines Logo
08:55 - 06:30
STL
-
LHR
15h 35m
2 stops
Multiple Airlines Logo
12:40 - 21:30
LHR
-
STL
14h 50m
2 stops
£798Multiple Airlines
Fri, 4 Sep - Sun, 13 Sep
Air Canada Logo
14:40 - 10:00
STL
-
LHR
13h 20m
2 stops
Air Canada Logo
08:30 - 18:41
LHR
-
STL
16h 11m
2 stops
£799Air Canada
Fri, 28 Aug - Tue, 1 Sep
Air Canada Logo
12:10 - 06:30
STL
-
LHR
12h 20m
1 stop
Air Canada Logo
09:30 - 18:42
LHR
-
STL
15h 12m
1 stop
£800Air Canada
Fri, 28 Aug - Tue, 8 Sep
Iberia Logo
21:35 - 11:35
STL
-
LHR
8h 00mdirect
Iberia Logo
13:45 - 23:34
LHR
-
STL
15h 49m
1 stop
£800Iberia
Mon, 3 Aug - Sat, 15 Aug
Delta Logo
11:00 - 07:15
STL
-
LCY
14h 15m
2 stops
Delta Logo
09:20 - 22:03
LCY
-
STL
18h 43m
2 stops
£803Delta
Wed, 26 Aug - Wed, 2 Sep
British Airways Logo
21:35 - 11:35
STL
-
LHR
8h 00mdirect
British Airways Logo
16:25 - 19:30
LHR
-
STL
9h 05mdirect
£803British Airways
Sun, 20 Sep - Sun, 27 Sep
British Airways Logo
21:40 - 11:40
STL
-
LHR
8h 00mdirect
British Airways Logo
10:05 - 17:24
LHR
-
STL
13h 19m
1 stop
£804British Airways
Sat, 5 Sep - Sun, 13 Sep
Delta Logo
17:30 - 07:55
STL
-
LCY
32h 25m
2 stops
Delta Logo
13:45 - 17:10
LCY
-
STL
33h 25m
2 stops
£832Delta
Booking Insights

KAYAK’s insights & trends for St. Louis to London flights

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.

How much is a return flight from St. Louis to London?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to London departing in September.

What is the cheapest St. Louis to London flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from St. Louis to London costs £1,137 on the route between St. Louis (STL) and London Heathrow Airport (LHR). It is also the most popular route.

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

The average price of all round-trip flights from St. Louis to London clicked on KAYAK for each day over the last 12 months.

For St. Louis to London, Friday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from London back to St. Louis, the best deals are generally found on Saturday, with Sunday being the most expensive.

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 round-trip 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 April, where tickets cost £87 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £599 and £444 respectively.

Can I save money by flying with a stopover from St. Louis to London?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £709 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price on the flight from St. Louis to London, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

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

Low seasonJanuary
Cheapest flight£168
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (43% 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 £168 for a one-way ticket and £797 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 airlines offer Wi-Fi service onboard planes from St. Louis to London?

    American Airlines, Lufthansa, and United Airlines offer inflight Wi-Fi service on the St. Louis to London flight route.

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

    The Boeing 787-8 Dreamliner is the aircraft model that flies most regularly on the St. Louis to London flight route.

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

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

  • On which days can I fly direct from St. Louis to London?

    You can catch a direct flight from St. Louis to London on on Tuesday, Wednesday, Friday, and Sunday.

  • 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.

KAYAK’s 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.

Prefer to fly direct from St. Louis to London?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Lambert-St Louis to London.
Find which airlines fly direct from Lambert-St Louis Airport to London, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to London

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Friday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Direct returns

London to Lambert-St Louis

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Friday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Everything you need to know for your flight from St. Louis to London

Information on your arrival and departure airports