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£330 Find Cheap Flights to St. Louis – Compare and Save

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Everything you should know

Cheapest return fare
£589
Typical prices: £802-£1,039
Scandinavian Airlines
Tue 13/10Mon 5/4
MAN - STL • 2 stops
Cheapest direct flights
£682
British Airways
Wed 14/10Tue 20/10
LHR - STL • Direct
Top routes
Insights
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When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 42% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
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+1
+1
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Flight Deals
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Expert advice
Flight Deals

Cheap Flights to St. Louis

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to St. Louis

Tue, 13 Oct - Mon, 5 Apr
Scandinavian Airlines Logo
09:35 - 23:54MAN  Manchester-STL Lambert-St Louis
20h 19m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
15:40 - 08:55STL  Lambert-St Louis-MAN Manchester
35h 15m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
£589Scandinavian Airlines
Mon, 5 Oct - Mon, 12 Oct
Scandinavian Airlines Logo
09:35 - 23:42MAN  Manchester-STL Lambert-St Louis
20h 07m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
14:25 - 18:30STL  Lambert-St Louis-MAN Manchester
22h 05m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
£592Scandinavian Airlines
Wed, 28 Oct - Mon, 9 Nov
Iberia Logo
06:25 - 00:19EDI  Edinburgh Turnhouse-STL Lambert-St Louis
22h 54m2 stops London Heathrow Chicago O'Hare Intl
Iberia Logo
13:20 - 13:15STL  Lambert-St Louis-EDI Edinburgh Turnhouse
17h 55m2 stops Chicago O'Hare Intl London Heathrow
£637Iberia
Fri, 2 Oct - Fri, 16 Oct
Finnair Logo
14:25 - 20:44LHR  London Heathrow-STL Lambert-St Louis
12h 19m1 stop Chicago O'Hare Intl
Finnair Logo
21:35 - 11:35STL  Lambert-St Louis-LHR London Heathrow
8h 00mdirect
£637Finnair
Sun, 4 Oct - Wed, 21 Oct
British Airways Logo
08:55 - 18:03LHR  London Heathrow-STL Lambert-St Louis
15h 08m1 stop Dallas/Fort Worth
British Airways Logo
21:35 - 11:35STL  Lambert-St Louis-LHR London Heathrow
8h 00mdirect
£640British Airways
Tue, 24 Nov - Wed, 2 Dec
British Airways Logo
11:05 - 20:33EDI  Edinburgh Turnhouse-STL Lambert-St Louis
15h 28m1 stop Philadelphia
British Airways Logo
11:34 - 09:40STL  Lambert-St Louis-EDI Edinburgh Turnhouse
16h 06m2 stops Chicago O'Hare Intl London Heathrow
£641British Airways
Fri, 9 Oct - Sun, 25 Oct
Lufthansa Logo
06:30 - 13:25LHR  London Heathrow-STL Lambert-St Louis
12h 55m1 stop Frankfurt am Main
Lufthansa Logo
13:00 - 06:40STL  Lambert-St Louis-LHR London Heathrow
12h 40m1 stop Washington, D.C. Dulles Intl
£642Lufthansa
Mon, 12 Oct - Thu, 22 Oct
Lufthansa Logo
06:30 - 13:25LHR  London Heathrow-STL Lambert-St Louis
12h 55m1 stop Frankfurt am Main
Lufthansa Logo
13:29 - 06:45STL  Lambert-St Louis-LHR London Heathrow
11h 16m1 stop Chicago O'Hare Intl
£642Lufthansa
Wed, 28 Oct - Mon, 9 Nov
Iberia Logo
10:55 - 00:19EDI  Edinburgh Turnhouse-STL Lambert-St Louis
18h 24m2 stops London Heathrow Chicago O'Hare Intl
Iberia Logo
11:35 - 12:10STL  Lambert-St Louis-EDI Edinburgh Turnhouse
18h 35m2 stops Chicago O'Hare Intl London Heathrow
£647Iberia
Tue, 13 Oct - Tue, 20 Oct
Finnair Logo
10:20 - 00:19LHR  London Heathrow-STL Lambert-St Louis
19h 59m2 stops Helsinki-Vantaa Chicago O'Hare Intl
Finnair Logo
17:27 - 12:15STL  Lambert-St Louis-LHR London Heathrow
12h 48m1 stop Chicago O'Hare Intl
£696Finnair
Booking Insights

KAYAK's insights & trends for flights to St. Louis

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

What is the cheapest flight to St. Louis?

In the last 5 days, the cheapest flight deal to St. Louis was found on the route from London, at £589 return. The most popular connection is from London to St. Louis, while KAYAK users have found return deals for as low as £637 in the last 5 days.

What is the cheapest day to fly to St. Louis?

Based on KAYAK data, the cheapest day to fly to St. Louis is Saturday where round-trip tickets can be as cheap as £589. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are £1,050 on average.

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

The cheapest month for flights to St. Louis is February, where tickets cost £566 on average for return flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from the United Kingdom is £1,005 and £912 respectively. For one-way flights, the best month to travel is September with an average price of £473.

What is the cheapest time of day to fly to St. Louis?

The cheapest time of day to fly to St. Louis is generally in the evening, when round-trip flights cost £774 on average. The most expensive time of day to fly to St. Louis is generally in the evening, which is peak travel time and where the average cost of a ticket is £774.

What is a good deal for flights to St. Louis?

If you’re looking for cheap airfare to St. Louis, 25% of our users found tickets to St. Louis for the following prices or less: From London Heathrow Airport £801 return.

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

To get a below average price, you should book around 3 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Expert advice

Expert advice for your flight to St. Louis

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Laura Ratliff

Laura Ratliff

Expert on Virgin Atlantic

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has travelled to more than 50 countries across six continents.

Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Good to know - Cheap tickets to St. Louis

Low season

March

Cheapest flight

£330
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from London Heathrow Airport to St. Louis

When to book flights to St. Louis

Are your dates flexible? Find out the best times to travel to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs - booking St. Louis flights

  • What is the cheapest flight to St. Louis?

    In the last 5 days, the cheapest flight deal to St. Louis was found on the route from London, at £589 return. The most popular connection is from London to St. Louis, while KAYAK users have found return deals for as low as £637 in the last 5 days.

  • How far is Lambert-St Louis Airport from central St. Louis?

    Central St. Louis is 13 miles away from Lambert-St Louis Airport.

  • What is the name of St. Louis’s airport?

    All flights to St. Louis land at Lambert-St Louis Airport. The airport code is STL,and it can also be referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • How much is a flight to St. Louis?

    On average, a flight to St. Louis costs £840. The cheapest price found on KAYAK in the last 2 weeks cost £701 and departed from London Heathrow Airport.

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

    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 to St. Louis.

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

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

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

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

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

    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 St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to St. Louis are there each week?

    Each week there are around 20 direct flights from within United Kingdom to St. Louis. The most common day for departures is Tuesday, with 25% of flights taking off on this day.

Top tips for finding cheap flights to St. Louis

  • Looking for cheap airfare to St. Louis? 25% of our users found round-trip tickets to St. Louis for the following prices or less: Cheap flights to St. Louis from London Heathrow £2,097
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Reviews of the top 5 airlines flying to St. Louis

 
Need help choosing which airline to fly with to St. Louis? 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.
7.4
United AirlinesOverall score based on 10190 reviews
7.7Boarding
7.1Entertainment
7.3Comfort
8.1Crew
6.7Food
Airline reviews

Bad check in experience. Dirty ancient aircraft. Truly awful food and this in Business/ First class.

2.0 MediocreDonald, Aug 2026
Read more United Airlines reviews

Bad check in experience. Dirty ancient aircraft. Truly awful food and this in Business/ First class.

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airport terminal was outdated, flight was on a small jet with no wifi

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

We boarded and buckled and then deplaned due to no pilot. Had to wait over 3 hours for a new pilot. Not weather related, just poor management.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.

My seat 3G did not go down fully and the buttons were not working properly

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.

Security area in terminal 3 needs to be made much nicer. Less claustrophobic and use of glass and big ceilings wouldhelp

accomodating check in staff, friendly flight crew ( a crew member was speaking tactlessly and was overfamiliar with passengers

Seats need to be updated. Allowance needs to be made for dinner service at an alternative time

The crew should demonstrate flexibility by moving a screaming infant to its own seat with 1 parent

If I could fly Virgin Atlantic airlines to every place, I need to go, I would. Leaving Heathrow through the special virgin air entrance, security is completely white glove service. I love this airline. From ticketing agents to flight staff everyone tries to make it a wonderful & happy flight experience. I wish other airlines copied the positive culture of Virgin Airlines.

I was advertised a free seat selection for a "Smart" fare through BusinessClass.com. I was never able to select a seat. I thus paid extra for a bill of goods I was never provided. would love to speak with a representative of Kayak

Overall good. We weren't able to find out about food options for the flight and there was nothing I could eat due to allergies. The biggest problem was getting our checked bag at Logan. Waited an hour!

I loved both of my flights to Ireland and back to Boston. The only negative was it took over an hour for the baggage to be delivered.

The boarding time for this flight was ridiculous, longest in all my time flying. There was a problem with the original plane so it was switched at the last minute. Not a good substitution. We were delayed in departing. The bathrooms for economy were not adequate. The crew were pleasant but not present in the economy section, in an ~ 8hr flight only twice did they come through offering water, easy to get very dehydrated. I had to go and ask every hour for more water. The seats were cramped, and I have no idea what they did to the coffee but it was undrinkable. The food, was disgusting, utterly inedible, I am stunned by the lack of care and quality with the inflight service, very disappointing, I had expected better from Aer Lingus.

We traveled with my 90 year old mother and she was well cared for by everyone from the wheelchair attendant to crew. Greatly appreciated!

Very comfortable flight. Great service, food options, and entertainment options. With Wi-Fi!

I was pleasantly surprised and enjoyed the services of the airline since flying is not my favorite thing. My goal was to be with my brother's family in Manchester after his death. All staff was helpful, the food appreciated since I selected an overnight flight. Every aspect of the experience was comforting. I plan to return to Manchester in order to attend my brother's funeral in October and hope that I am able to find a reasonable priced flight. Thank you

Very good except for the boarding process which was more hectic than it should have been

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

Small plane, poor meal choices for first class, bad terminal and boarding experience at LAX

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Improvements in communication and empathy are absolutely necessary for American Airlines staff (top down). It’s like they are numb to the needs of their customers.

I like the speed of boarding and deplaning and the fact that everything was on time. The crew (attendants) were probably quite new and did not begin the in cabin service until 30 min before landing even though there was little to no air turbulence for the last 1.5 hours of the flight. It made for a mad scramble at the end to get trash collected and carts stowed before touch down.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

I did like the employee's, they are very friendly and all smiled most of the time, Overall, from checking in bags to getting on plane, not enough employees to be able to get all on the plane, therefore I was not able to get on the plane, due to no one wea there for me to check in my bag, so I decided to go thru the security point and by the time they were done with my bags, I was told that my bag cannot be checked in, and then found out that the lady that does the check in was boarding the customers onto the plane, she said that she was going back and fourth, there for was not able to get on the plane, which changed all my flights by the time I got to Dallas, I was on standby 3 times, and wasn't sure about being able to get on the fourth plane, so ended up buying another plane ticket, so I could make my destination on time.

Not sure about entertainment as I didn't use any, so maybe there should be an NA option on this survey. Otherwise everything was just as it should be. Of course I wish planes were more comfortable and had seats that would tilt back further.

American Airlines “Randy” questioned why I needed preboarding and denied my request for same. Then Randy attempted to berate me when I boarded with my group. I was seated in an exit roll with a young man with a disability that exhibited difficulty controlling and settling himself. But Tandy questioned my disability. The flight was horrible. It was overpacked.

I have a walker I need it to get from the plane to customs and baggage claim. It had a huge orange tag on it saying it should be given to me as I got off the plane. It was not and the flight staff didn’t know where it was—both on my flight to London and on the return. In It was very frustrating

Had a plane! Have a plan! Have my luggage! 10 hours of travel turned into 50 hours. Good Lord!

The travel on premium economy class was very positive. Comfortable with plenty of space and leg room. The service throughout was top notch. Crew members were kind and helpful. Food and entertainment were excellent.

Based on my wife's damaged condition, BA very kindly upgraded us from cattle to business class. MUCH appreciated!! One of these days, as it gains more experience, BA MAY learn how to depart on time (with over 30 years experience with BA, no flight has EVER managed to leave on time), Once airborne, the entertainment was ever so very pedestrian. But the flight was uneventful and the cabin crew's service was superb. And whichever driver landed the aircraft had obviously done it before. But BA unfortunately is learning from that scuzzy airline Delta. Delta is ALWAYS stunned when one of its aircraft actually turns up anywhere and is NEVER ready to receive it -- even when it turns up where and more or less when it is supposed to, NOT an example worthy of emulation.

Incredible. The upgrade to Business was a phenomenal way to end my trip, beyond grateful for the generosity and hospitality.

Great! Apart from small sitting in one the flight everything else was good

Great until k found out they never got my check bags onto the plane.

It was pretty decent mostly cause I have leg room.

God food! Although some of the snacks were not to my taste. Nice amenities in premium economy made for a comfortable flight. The pilot was able to make up about half the time we were delayed in the ground (we were delayed over an hour before takeoff due to a shortage of tugs) Nice movie selection for entertainment. We were last to board the second leg of our flight due to.complications during transfer from the first flight of our trip, but did manage to board in time. We really enjoyed the video presentation for flight safety. Hilarious gets your attention! Really nice, sufficient accommodations for overhead storage, didn't seem crowded or jam packed. I enjoyed being able to track the flight on my monitor. I was disappointed that there wasn't free WiFi during the flight, I thought that was a complimentary service but you had to pay extra. It felt like we were nickled and dimed on that one.

They ran out of earphones so my 3rd daughter couldn’t use the on board entertainment the entire flight. They also ran out of food choices (chicken or cheese) by the time they got to the last few rows, so my oldest daughter, wasn’t given a choice. Luckily she isn’t a vegetarian because they only had chicken left.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Litchfield
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Chesterfield
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More options for your flight to St. Louis