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Cheap Flights from the United Kingdom to St. Louis

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

Recent round-trip flight deals from the United Kingdom to St. Louis

Tue, Nov 24 - Mon, Nov 30
Scandinavian Airlines Logo
7:15 pm - 11:56 pmMAN  Manchester-STL Lambert-St Louis
34h 41m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
2:31 pm - 9:30 amSTL  Lambert-St Louis-MAN Manchester
36h 59m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
$793Scandinavian Airlines
Thu, Oct 1 - Mon, Oct 5
Scandinavian Airlines Logo
7:10 pm - 8:21 pmEDI  Edinburgh Turnhouse-STL Lambert-St Louis
31h 11m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
2:00 pm - 6:25 pmSTL  Lambert-St Louis-EDI Edinburgh Turnhouse
22h 25m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
$817Scandinavian Airlines
Thu, Oct 1 - Mon, Oct 5
Scandinavian Airlines Logo
7:10 pm - 8:21 pmEDI  Edinburgh Turnhouse-STL Lambert-St Louis
31h 11m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
2:00 pm - 6:25 pmSTL  Lambert-St Louis-EDI Edinburgh Turnhouse
22h 25m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
$818Scandinavian Airlines
Thu, Jan 21 - Mon, Jan 25
Scandinavian Airlines Logo
10:10 am - 11:39 pmMAN  Manchester-STL Lambert-St Louis
19h 29m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
3:40 pm - 9:30 amSTL  Lambert-St Louis-MAN Manchester
35h 50m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
$819Scandinavian Airlines
Fri, Sep 18 - Sun, Oct 4
British Airways Logo
9:45 am - 4:48 pmLHR  London Heathrow-STL Lambert-St Louis
13h 03m1 stop Chicago O'Hare Intl
British Airways Logo
9:40 pm - 11:40 amSTL  Lambert-St Louis-LHR London Heathrow
8h 00mnonstop
$895British Airways
Tue, Oct 13 - Tue, Oct 20
British Airways Logo
11:10 am - 6:16 pmLHR  London Heathrow-STL Lambert-St Louis
13h 06m1 stop Chicago O'Hare Intl
British Airways Logo
1:06 pm - 6:50 amSTL  Lambert-St Louis-LHR London Heathrow
11h 44m1 stop Chicago O'Hare Intl
$907British Airways
Fri, Oct 2 - Fri, Oct 16
British Airways Logo
1:10 pm - 8:44 pmLHR  London Heathrow-STL Lambert-St Louis
13h 34m1 stop Chicago O'Hare Intl
British Airways Logo
9:35 pm - 11:35 amSTL  Lambert-St Louis-LHR London Heathrow
8h 00mnonstop
$908British Airways
Fri, Sep 18 - Sun, Oct 4
American Airlines Logo
1:10 pm - 8:44 pmLHR  London Heathrow-STL Lambert-St Louis
13h 34m1 stop Chicago O'Hare Intl
American Airlines Logo
9:40 pm - 11:40 amSTL  Lambert-St Louis-LHR London Heathrow
8h 00mnonstop
$930American Airlines
Tue, Oct 13 - Fri, Oct 23
American Airlines Logo
4:25 pm - 7:30 pmLHR  London Heathrow-STL Lambert-St Louis
9h 05mnonstop
American Airlines Logo
9:35 pm - 11:35 amSTL  Lambert-St Louis-LHR London Heathrow
8h 00mnonstop
$1,142American Airlines
Fri, Sep 18 - Sun, Oct 4
American Airlines Logo
4:25 pm - 7:30 pmLHR  London Heathrow-STL Lambert-St Louis
9h 05mnonstop
American Airlines Logo
9:40 pm - 11:40 amSTL  Lambert-St Louis-LHR London Heathrow
8h 00mnonstop
$1,142American Airlines
Booking Insights

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

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

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

Based on KAYAK data, the cheapest day to fly to St. Louis is Tuesday where round-trip tickets can be as cheap as $1,065. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $1,408 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 $766 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 $1,318 and $1,235 respectively. For one-way flights, the best month to travel is September with an average price of $632.

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 $1,143 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 $1,143.

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

To get a below average price, you should book around 2 weeks before departure, which saves you about 34% 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
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, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

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 on the 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 traveled to more than 50 countries across six continents.

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.

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.

Good to know

Low season

March

Cheapest flight

$492
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from London Heathrow Airport to St. Louis

FAQs - booking St. Louis flights

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

    Lambert-St Louis Airport is 13 miles from the center of St. Louis.

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

    St. Louis is served by Lambert-St Louis Airport, also commonly referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl. The airport code is STL.

  • How much is a flight to St. Louis?

    On average, a flight to St. Louis costs $713. The cheapest price found on KAYAK in the last 2 weeks cost $583 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 travelers 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 2,794 direct flights from within United Kingdom to St. Louis. The most common day for departures is Sunday, with 20% of flights taking off on this day.

Top tips for finding cheap flights to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $583 or less one-way.
  • 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 airlines flying from the United Kingdom 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.
7.1
American AirlinesOverall score based on 12022 reviews
6.8Entertainment
7.9Crew
6.4Food
7.5Boarding
7.2Comfort
Airline reviews

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.

2.0 MediocreJohn, Mar 2026
Read more American Airlines reviews

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.

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.

That airplane is the most uncomfortable I’ve ever flown! Flight 267 LON-PDX Aug 10, 26 The middle armrests didn’t go up all the way. The aisle arm rest didn’t raise at all. The leg room area was compromised by a large metal box on both exterior seats. The headrests didn’t flatten. We got an email apologizing for no WiFi, but on the plane we’re told there would be WiFi. I never got it to connect. Pre-boarding support was great. Boarding was smooth. Crew was great. Food was DELICIOUS. A different plane would have resulted in a much better score.

Lovely attentive staff and even though take off was a tiny bit late, the pilot landed us early in PHX. Smooth easy journey and good touchdown.

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.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Fenton
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

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

Information on the airport you'll fly into in St. Louis