£246 Cheap Flights from St. Louis (STL) to London (LGW)

View £246 flight on Mon, 20 Jul 2026Opens in a new window

Flight 1

Popular airlines from Lambert-St. Louis International Airport (STL) to Gatwick Airport (LGW)

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Cheap Flights from St. Louis (STL) to London (LGW)

Prices were available within the past 7 days and start at £246 for one-way flights and £923 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia
Wed, 6 May - Sun, 10 May
STL
St. Louis
LGW
London
£923 Return, found 6 days ago
£923
Return
found 6 days ago
Select Iberia flight, departing Wed, 6 May from St. Louis to London, returning Sun, 10 May, priced at £923 found 6 days ago
KLM
Wed, 6 May - Sun, 10 May
STL
St. Louis
LGW
London
£930 Return, found 6 days ago
£930
Return
found 6 days ago
Select KLM flight, departing Wed, 6 May from St. Louis to London, returning Sun, 10 May, priced at £930 found 6 days ago
Iberia
Wed, 6 May - Sun, 10 May
STL
St. Louis
LGW
London
£931 Return, found 6 days ago
£931
Return
found 6 days ago
Select Iberia flight, departing Wed, 6 May from St. Louis to London, returning Sun, 10 May, priced at £931 found 6 days ago
Air France
Wed, 6 May - Sun, 10 May
STL
St. Louis
LGW
London
£939 Return, found 6 days ago
£939
Return
found 6 days ago
Select Air France flight, departing Wed, 6 May from St. Louis to London, returning Sun, 10 May, priced at £939 found 6 days ago
Virgin Atlantic
Wed, 6 May - Sun, 10 May
STL
St. Louis
LGW
London
£951 Return, found 6 days ago
£951
Return
found 6 days ago
Select Virgin Atlantic flight, departing Wed, 6 May from St. Louis to London, returning Sun, 10 May, priced at £951 found 6 days ago
Air France
Sat, 9 May - Mon, 17 Aug
STL
St. Louis
LGW
London
£994 Return, found 14 hours ago
£994
Return
found 14 hours ago
Select Air France flight, departing Sat, 9 May from St. Louis to London, returning Mon, 17 Aug, priced at £994 found 14 hours ago
Air France
Sun, 19 Jul - Wed, 29 Jul
STL
St. Louis
LGW
London
£1,000 Return, found 3 days ago
£1,000
Return
found 3 days ago
Select Air France flight, departing Sun, 19 Jul from St. Louis to London, returning Wed, 29 Jul, priced at £1,000 found 3 days ago
KLM
Sun, 7 Jun - Sun, 14 Jun
STL
St. Louis
LGW
London
£1,013 Return, found 15 hours ago
£1,013
Return
found 15 hours ago
Select KLM flight, departing Sun, 7 Jun from St. Louis to London, returning Sun, 14 Jun, priced at £1,013 found 15 hours ago
Virgin Atlantic
Sun, 7 Jun - Sun, 14 Jun
STL
St. Louis
LGW
London
£1,014 Return, found 15 hours ago
£1,014
Return
found 15 hours ago
Select Virgin Atlantic flight, departing Sun, 7 Jun from St. Louis to London, returning Sun, 14 Jun, priced at £1,014 found 15 hours ago
Air Canada
Sun, 7 Jun - Sun, 14 Jun
STL
St. Louis
LGW
London
£1,015 Return, found 15 hours ago
£1,015
Return
found 15 hours ago
Select Air Canada flight, departing Sun, 7 Jun from St. Louis to London, returning Sun, 14 Jun, priced at £1,015 found 15 hours ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city centre is 28 minutes. Flights from £892
LHR
Heathrow
Cheapest
Average driving time to city centre28 min
Flights from £892

Frequently asked questions

How do I find cheap flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick)?
To find a cheap flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick)?
There are approximately 22 connecting flights per day from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick). Some common connection points include O'Hare Intl. (ORD), Pearson Intl. (YYZ), and Charlotte-Douglas Intl. (CLT).
What is the earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick)?
The earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick) typically departs at approximately 5:00 AM local time. This service is seasonal, active only in July, and is operated by American Airlines and TAP Air Portugal. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick)?
Flying from STL to LGW with a connection usually takes about 17 hours 20 minutes, traveling roughly 4,211 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick)?
Select the "Business class" and "First class" filters when looking for STL to LGW flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick) flight with Expedia?
It's easy to earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from Lambert-St. Louis Intl. (STL)?
When traveling from Lambert-St. Louis Intl. (STL) to London, you can fly into Heathrow (LHR), Gatwick (LGW) and London Intl. (YXU). Some flights may connect through major hubs like O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), Charlotte-Douglas Intl. (CLT) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick) at the last minute?
Typically, booking a last minute flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick) flight and hotel package?
Securing a St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick)?
If you booked your St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LGW-Gatwick) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Gatwick
Airlines serving
Air France, Iberia, KLM, Turkish Airlines, Virgin Atlantic
Return price
£922
Distance
6736 km

Book with confidence

Compare flights from St. Louis to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from St. Louis to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Gatwick in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Lambert-St. Louis Intl. to Gatwick.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Lambert-St. Louis Intl. (STL) to Gatwick (LGW)

The easiest way to view the best deals on flights from St. Louis to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Lambert-St. Louis Intl. to Gatwick start at just £923 and range up to £1,015.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near St. Louis and London
  • booking your flight during May, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your St. Louis to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Lambert-St. Louis Intl. to Gatwick for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from St. Louis to London easily and book with confidence

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