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£342 Find Cheap Flights to St. Louis – Compare and Save

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Everything you should know

Cheapest return fare
£582
Typical prices: £726-£828
Scandinavian Airlines
Sun 10/1Sun 17/1
MAN - STL • 2 stops
Cheapest direct flights
£646
British Airways
Wed 14/10Wed 21/10
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 • 25% price drop
Most popular
Good to know
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+1
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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

Sun, 10 Jan - Sun, 17 Jan
Scandinavian Airlines Logo
19:15 - 23:39MAN  Manchester-STL Lambert-St Louis
34h 24m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
11:51 - 18:35STL  Lambert-St Louis-MAN Manchester
24h 44m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
£582Scandinavian Airlines
Thu, 21 Jan - Mon, 25 Jan
Scandinavian Airlines Logo
10:10 - 23:39MAN  Manchester-STL Lambert-St Louis
19h 29m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
15:40 - 09:30STL  Lambert-St Louis-MAN Manchester
35h 50m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
£601Scandinavian Airlines
Wed, 14 Oct - Wed, 21 Oct
Lufthansa Logo
06:30 - 13:25LHR  London Heathrow-STL Lambert-St Louis
12h 55m1 stop Frankfurt am Main
Lufthansa Logo
12:20 - 10:25STL  Lambert-St Louis-LHR London Heathrow
16h 05m1 stop Newark
£627Lufthansa
Wed, 14 Oct - Wed, 21 Oct
Air Canada Logo
08:40 - 18:41LHR  London Heathrow-STL Lambert-St Louis
16h 01m2 stops Zurich Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
14:40 - 10:00STL  Lambert-St Louis-LHR London Heathrow
13h 20m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
£633Air Canada
Mon, 16 Nov - Sat, 21 Nov
Virgin Atlantic Logo
10:50 - 18:13LHR  London Heathrow-STL Lambert-St Louis
13h 23m1 stop Atlanta Hartsfield-Jackson
Virgin Atlantic Logo
15:30 - 06:25STL  Lambert-St Louis-LHR London Heathrow
32h 55m1 stop Atlanta Hartsfield-Jackson
£639Virgin Atlantic
Tue, 20 Oct - Tue, 17 Nov
Air Canada Logo
09:30 - 18:41LHR  London Heathrow-STL Lambert-St Louis
15h 11m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
09:40 - 06:30STL  Lambert-St Louis-LHR London Heathrow
14h 50m2 stops Chicago O'Hare Intl Toronto Pearson Intl
£639Air Canada
Mon, 5 Oct - Sat, 10 Oct
Virgin Atlantic Logo
10:45 - 20:35LHR  London Heathrow-STL Lambert-St Louis
15h 50m1 stop Detroit Metropolitan Wayne County
Virgin Atlantic Logo
17:38 - 07:15STL  Lambert-St Louis-LHR London Heathrow
31h 37m1 stop Atlanta Hartsfield-Jackson
£640Virgin Atlantic
Tue, 17 Nov - Mon, 30 Nov
British Airways Logo
11:05 - 20:26EDI  Edinburgh Turnhouse-STL Lambert-St Louis
15h 21m1 stop Philadelphia
British Airways Logo
17:29 - 15:15STL  Lambert-St Louis-EDI Edinburgh Turnhouse
15h 46m2 stops Chicago O'Hare Intl London Heathrow
£643British Airways
Tue, 20 Oct - Tue, 17 Nov
British Airways Logo
16:25 - 19:30LHR  London Heathrow-STL Lambert-St Louis
9h 05mdirect
British Airways Logo
13:20 - 06:55STL  Lambert-St Louis-LHR London Heathrow
11h 35m1 stop Chicago O'Hare Intl
£646British Airways
Wed, 14 Oct - Wed, 21 Oct
Lufthansa Logo
06:30 - 13:25LHR  London Heathrow-STL Lambert-St Louis
12h 55m1 stop Frankfurt am Main
Lufthansa Logo
12:20 - 10:25STL  Lambert-St Louis-LHR London Heathrow
16h 05m1 stop Newark
£659Lufthansa
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 £582 return. The most popular connection is from London to St. Louis, while KAYAK users have found return deals for as low as £627 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 £597. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are £1,064 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 £577 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 £1,019 and £919 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 £784 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 £784.

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 £788 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

£342
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 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

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 £582 return. The most popular connection is from London to St. Louis, while KAYAK users have found return deals for as low as £627 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 £806. The cheapest price found on KAYAK in the last 2 weeks cost £395 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 £787
  • 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 10227 reviews
6.7Food
7.1Entertainment
8.1Crew
7.3Comfort
7.7Boarding
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.

The thing thy call a pizza was atrocious. Do not eat it. The seating is as usual for economy an experiment in cruel and unusual punishment that they aren't allowed to do to prisoners but you get to pay for it.

Didn't make it to this flight as we sat on the tarmac for 1.5 hours.

The crew was first rate. They allowed me to switch my middle seat to an isle seat and it made my flight home so much more comfortable.

Everything went very smoothly I loved having the earphones and the blanket and the staff was just super friendly

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 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.

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.

British Airways is very good... Taxiing after landing took 35 minutes, can't really blame the airline but the terrible infrastructure at JFK.

Our section of the aircraft in premium economy was very cold. We asked the attendants twice to raise the heat but it never happened. Even with the blanket it was chilly for 10 1/2 hours

Because kayak scammed me with false advertisement saying 23kg was included but I ended up having to pay another £200

The flight was canceled and I was directed to Air France two days later than my plan departure day. This involve getting two more days of hotel and also not being able to get a boarding pass until I got to the Istanbul Air France boarding desk. It has been a troubling time.

It makes no sense for several types of drinks to already be out of stock in the middle of the flight.

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.

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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More options for your flight to St. Louis