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£351 Find Cheap Flights to St. Louis – Compare and Save

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Everything you should know

Cheapest return flight
£538
Typical prices: £653-£995
Multiple Airlines
Fri 19/1Thu 25/1
LGW - STL • 2 stops
Cheapest direct flights
£771
Typical prices: £719-£996
British Airways
Tue 24/4Fri 4/5
LHR - STL • Direct
Top airlines
Best reviews • 7.5 score
Airline reviews
Airline reviews
Top routes
Cheapest • 25% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 15 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to St. Louis!
Flight Deals
Booking Insights
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, 19 Jan - Mon, 25 Jan
Multiple Airlines Logo
09:35 - 10:20LGW  London Gatwick-STL Lambert-St Louis
30h 45m2 stops Orlando Denver Intl
Multiple Airlines Logo
17:59 - 05:50STL  Lambert-St Louis-LGW London Gatwick
29h 51m1 stop Orlando
£538Multiple Airlines
Tue, 15 Dec - Mon, 4 Jan
Scandinavian Airlines Logo
19:15 - 00:05MAN  Manchester-STL Lambert-St Louis
34h 50m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
15:48 - 18:35STL  Lambert-St Louis-MAN Manchester
20h 47m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
£574Scandinavian Airlines
Mon, 7 Dec - Mon, 21 Dec
Iberia Logo
16:30 - 00:02LHR  London Heathrow-STL Lambert-St Louis
13h 32m1 stop Chicago O'Hare Intl
Iberia Logo
18:57 - 08:15STL  Lambert-St Louis-LHR London Heathrow
31h 18m1 stop Dallas/Fort Worth
£640Iberia
Thu, 17 Dec - Wed, 23 Dec
United Airlines Logo
13:35 - 23:38LHR  London Heathrow-STL Lambert-St Louis
16h 03m1 stop Chicago O'Hare Intl
United Airlines Logo
10:45 - 05:55STL  Lambert-St Louis-LHR London Heathrow
13h 10m1 stop Chicago O'Hare Intl
£640United Airlines
Tue, 1 Dec - Tue, 8 Dec
Lufthansa Logo
13:30 - 13:45LHR  London Heathrow-STL Lambert-St Louis
30h 15m1 stop Frankfurt am Main
Lufthansa Logo
11:05 - 06:20STL  Lambert-St Louis-LHR London Heathrow
13h 15m1 stop Newark
£646Lufthansa
Wed, 20 Jan - Sun, 24 Jan
Lufthansa Logo
06:30 - 13:45LHR  London Heathrow-STL Lambert-St Louis
13h 15m1 stop Frankfurt am Main
Lufthansa Logo
11:00 - 20:35STL  Lambert-St Louis-LHR London Heathrow
27h 35m1 stop Newark
£660Lufthansa
Mon, 7 Dec - Tue, 22 Dec
Iberia Logo
12:35 - 19:58LHR  London Heathrow-STL Lambert-St Louis
13h 23m1 stop Chicago O'Hare Intl
Iberia Logo
08:06 - 08:15STL  Lambert-St Louis-LHR London Heathrow
18h 09m1 stop Dallas/Fort Worth
£663Iberia
Tue, 1 Dec - Tue, 8 Dec
United Airlines Logo
09:00 - 19:26LHR  London Heathrow-STL Lambert-St Louis
16h 26m2 stops Zurich Chicago O'Hare Intl
United Airlines Logo
13:18 - 08:25STL  Lambert-St Louis-LHR London Heathrow
13h 07m2 stops Chicago O'Hare Intl Newark
£669United Airlines
Mon, 7 Dec - Mon, 21 Dec
Virgin Atlantic Logo
16:00 - 00:05LHR  London Heathrow-STL Lambert-St Louis
14h 05m1 stop Atlanta Hartsfield-Jackson
Virgin Atlantic Logo
10:45 - 07:20STL  Lambert-St Louis-LHR London Heathrow
14h 35m2 stops Detroit Metropolitan Wayne County Washington, D.C. Dulles Intl
£692Virgin Atlantic
Mon, 7 Dec - Mon, 21 Dec
Virgin Atlantic Logo
13:20 - 00:05LHR  London Heathrow-STL Lambert-St Louis
16h 45m2 stops Washington, D.C. Dulles Intl Atlanta Hartsfield-Jackson
Virgin Atlantic Logo
10:45 - 07:20STL  Lambert-St Louis-LHR London Heathrow
14h 35m2 stops Detroit Metropolitan Wayne County Washington, D.C. Dulles Intl
£692Virgin Atlantic
Booking Insights

Price, demand, and travel trends for flights to St. Louis

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What is the cheapest flight to St. Louis?

London Gatwick Airport to St. Louis is the cheapest route at £538 return, found in the past 5 days on KAYAK. London Heathrow Airport to St. Louis is the most popular connection with return deals from £640.

How much is a flight to St. Louis?

On average, a return flight from the United Kingdom to St. Louis costs £777, based on KAYAK data over the past 12 months. Return fares from London average £733, while Edinburgh runs a bit higher at £817.

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

Thursday is the cheapest day to fly to St. Louis at £765 return on average over the past 12 months on KAYAK. Sunday is the most expensive at £898.

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

•February is the cheapest month to fly to St. Louis with an average price of £581 return.
•August (£1,001) and July (£976) are the most expensive.

Based on KAYAK data over the past 12 months.

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

Evening flights to St. Louis are the cheapest at £701 return on average. Afternoon flights are the most expensive at £814.

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

Flights under £653 are considered a good deal. 25% of KAYAK users found return flights to St. Louis at or below these prices, with the lowest fares from:
•London £636.

When are flights to St. Louis the cheapest?

Flights to St. Louis are cheapest 15 weeks before departure. Booking in this window typically costs about 34% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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.

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.

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.

Key details for flights to St. Louis

Low season

February

Cheapest flight

£351
Beat the crowds with an average 49% drop in traveller numbers.
The most popular month to fly with an average 37% increase in traveller numbers.
One-way flight from London Gatwick 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

Your questions about flights to St. Louis, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How do I know if a flight to St. Louis is a good deal?

    A good deal on a flight to St. Louis is around £653 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • How far is Lambert-St Louis from St. Louis city centre?

    Lambert-St Louis is 13.1 mi from St. Louis city centre.

  • Which city has the cheapest flights to St. Louis?

    Based on fares booked in the past 5 days, the cheapest flights to St. Louis are from London, starting at £538 return.

  • How expensive are last-minute flights to St. Louis?

    Last-minute fares to St. Louis (booked within two weeks of departure) are typically 33% higher than the average return fare of £777.

  • What is the difference between the most popular and the most frequent airline at St. Louis?

    American Airlines operates the most flights from the United Kingdom to St. Louis at 0 per week, while British Airways is the airline most often selected by KAYAK users searching for flights from the United Kingdom to St. Louis. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

  • Which airlines should I consider for flights to St. Louis?

Your guide to booking St. Louis flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For the best chance at a low fare to St. Louis, book around 15 weeks before departure. Based on KAYAK data from the last 12 months, fares are historically about 34% lower during this window than last-minute fares.
  • For flights to St. Louis, a good return fare is around £653. If you find a fare below that, you're getting a strong deal.
  • If your travel dates are flexible, consider flying to St. Louis in February. Return fares historically average £581, making February the cheapest month to travel based on KAYAK data from the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to afternoon to save up to £113 on a return flight. Afternoon flights to St. Louis average £701 compared to £814 for midday flights.
  • Bag allowances vary by airline, fare type, cabin class, and route. On flights to St. Louis, some airlines may include bags at no extra cost. For example, British Airways includes a cabin bag and a checked bag in Economy class, Finnair includes a cabin bag in Economy class, and Iberia includes a cabin bag and a checked bag in Economy class. Always check the fare details before booking, since bag policies can change by ticket type.
  • Once you arrive in St. Louis, a few great places to start are St. Louis Union Station, Gateway Arch, and America's Center Convention Complex. These are popular with first-time visitors and can give you a good feel for the area.

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.
7.5
Virgin AtlanticOverall score based on 697 reviews
7.3Comfort
6.9Food
7.7Boarding
8.1Crew
7.5Entertainment
Airline reviews

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

10.0 ExcellentLye Sim, Jun 2026
Read more Virgin Atlantic reviews

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.

The staff on the flight were utterly brilliant; there was a young man who was particularly exceptional. Boarding was quick and seamless, and service was great! Seats were fab, as was the entertainment and its ease of access

i’m The staff on my flight were amazing as always, beautiful professional staff, they do amazing job. the food ? room for improvement

The agents at the boarding desk were not very helpful, however the hostesses on board the flight were great, the food was ok, and there were lots for choices for entertainment. I was stuck in an middle row seat which was a pain on a full flight, but otherwise the flight was great.

The man in front of me reclined the entire flight, including during meals, which was aggravating. My screen had issues with brightness and kept flickering in and out.

Very helpful staff especially when helping with the missing baggage

Still some confusion about my baggage which was disconcerting. It was nice that there was extra space on the flight for comfort reasons. Staff very friendly

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.

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.

As with most flights these days it was delayed by about 30 min.

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.

Terrible we had to wait out in the cold for transfer bus to take us to the plane. Once we finally got on the plane seat had no cushioning not comfortable at all. Food was overcooked and dried out. I was skipped over when they served drinks I had to call them back to give me a drink with my food. Overall terrible experience this time. I have used BA before and never experienced service like this before. If this keeps up I will look for other options

My experience on this flight was good. The seat I had had a lot of leg room, but it was so close to the aisle that the flight attendants kept bumping into my visual monitor connected to my seat to watch tv.

It was fine, but it cost me twice as much to return to Boston as it took me to get to Heathrow from Boston two weeks prior. I flew on Jet Blue over and it was half the cost of British Air.

Staff and comfort were great but first choice meal was unavailable even in row 21.

Cabin crew was very good. No wifi and no doors to the suites

Would not let me board with my fragile guitar so had to check it in. Who knows what the icicles did to it. Not happy. Had to run to catch my connection in Heathrow. After a bus and a train? Was asked by a guy in the middle seat to change my window seat with his girlfriend's middle seat further up in the plane and I was insulted. What nerve! The food was unhealthy and the seat was cramped. Could not wait to exit.

need more US friendly food options. Directions on getting to the next gate were terrible - resulted in long walks to the terminal and then finding I couldn;t enter there and had long walk back, then train to security then train back to where I started in the first place

We never made this flight due to the flight from Barcelona being delayed, which I have reviewed in a separate review. But I can tell you that the Delta Airlines flight that did get us home, I am extremely happy with them and their crew. The only one person that I would praise within the entire part of BA is the girl I spoke to in the call center in India. Who completely understood, was dedicated to a resolution and was a complete realist in the situation. Unlike some of the people who don’t care about the human element and stick you on a flight whenever. She got us home.

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

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
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