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Cheap flights from London Gatwick Airport to St. Louis from £278

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — STL
16 Apr — 23 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Gatwick to St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from Gatwick to St. Louis
Explore the most affordable flight options available from Gatwick to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 March 2026.

Fri 24/414:00
LGW
-
STL
1 stop15h 19m
Multiple Airlines
Fri 8/517:27
STL
-
LGW
2 stops58h 33m
Multiple Airlines
Deal found 12/3£554
Tue 28/412:20
LGW
-
STL
2 stops17h 26m
American Airlines
Tue 5/507:00
STL
-
LGW
2 stops17h 50m
American Airlines
Deal found 14/3£592
Sat 21/1111:20
LGW
-
STL
2 stops18h 36m
American Airlines
Wed 2/1209:11
STL
-
LGW
2 stops17h 49m
American Airlines
Deal found 14/3£621
Thu 19/1111:20
LGW
-
STL
2 stops18h 45m
American Airlines
Mon 30/1108:40
STL
-
LGW
2 stops18h 20m
American Airlines
Deal found 14/3£622
Mon 27/414:00
LGW
-
STL
1 stop15h 19m
Multiple Airlines
Mon 4/520:23
STL
-
LGW
2 stops27h 57m
Multiple Airlines
Deal found 13/3£626
Tue 28/410:35
LGW
-
STL
2 stops16h 44m
Air France
Tue 5/513:02
STL
-
LGW
2 stops14h 23m
Air France
Deal found 14/3£629
Tue 21/410:35
LGW
-
STL
2 stops16h 44m
Air France
Mon 27/413:02
STL
-
LGW
2 stops14h 38m
Air France
Deal found 17/3£629
Tue 17/1111:35
LGW
-
STL
2 stops37h 52m
Iberia
Tue 1/1215:23
STL
-
LGW
2 stops21h 37m
Iberia
Deal found 14/3£648
Thu 9/414:00
LGW
-
STL
1 stop15h 25m
Multiple Airlines
Thu 16/411:25
STL
-
LGW
2 stops36h 55m
Multiple Airlines
Deal found 12/3£654
Sun 22/1111:35
LGW
-
STL
2 stops37h 52m
Iberia
Tue 1/1210:45
STL
-
LGW
2 stops26h 15m
Iberia
Deal found 14/3£656

Find flight deals from Gatwick to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 March 2026.

Round-trip from

£554

One-way from

£278

Popular in

August

Cheapest in

January

Average price

£693
24/4-8/5
  • 24/4-8/5
  • 3 total stops
  • 73h 52m total
  • London to St. Louis
Search Deals
8/5
  • 8/5
  • 1 total stop
  • 16h 21m total
  • London to St. Louis
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£49 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gatwick to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 March 2026.
Use the filters below to find and compare flights from London Gatwick Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Fri 24/4

14:00-23:19

1 stop15h 19m

Lambert-St Louis

Fri 8/5

17:27-10:00

2 stops58h 33m

£554

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Tue 21/4

10:35-21:19

2 stops16h 44m

Lambert-St Louis

Mon 27/4

13:02-09:40

2 stops14h 38m

£629

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 9/4

14:00-23:25

1 stop15h 25m

Lambert-St Louis

Thu 16/4

11:25-06:20

2 stops36h 55m

£654

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sat 11/4

14:00-23:25

1 stop15h 25m

Lambert-St Louis

Sat 18/4

20:23-10:00

2 stops31h 37m

£767

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 18/5

10:25-21:09

2 stops16h 44m

Lambert-St Louis

Sat 30/5

11:25-09:20

2 stops15h 55m

£775

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sun 17/5

10:25-21:09

2 stops16h 44m

Lambert-St Louis

Fri 29/5

11:25-09:25

2 stops16h 00m

£806

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Tue 21/4

09:15-15:19

1 stop36h 04m

Lambert-St Louis

Mon 27/4

20:23-06:20

2 stops27h 57m

£867

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sat 27/6

10:25-20:50

2 stops16h 25m

Lambert-St Louis

Mon 6/7

12:10-09:40

2 stops15h 30m

£873

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 20/4

10:50-21:13

2 stops40h 23m

Lambert-St Louis

Thu 30/4

07:45-09:55

2 stops44h 10m

£1,011
Fastest return journey

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Fri 24/4

12:40-21:52

2 stops15h 12m

Lambert-St Louis

Sun 10/5

14:25-10:45

1 stop14h 20m

£1,168

Flights are sorted by cheapest return flights first.

Deals found on 12/3

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Gatwick to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Gatwick with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Gatwick Airport to St. Louis

What’s the top stopover airport for flights from London Gatwick Airport to St. Louis?

Share of one-stop return flights from London Gatwick Airport to St. Louis chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Chicago (ORD) – chosen by Cheapflights users on 60% of one-stop itineraries from London Gatwick Airport to St. Louis on Cheapflights.

What’s the cheapest stopover airport for flights from London Gatwick Airport to St. Louis?

Average return fare for one-stop flights from London Gatwick Airport to St. Louis, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £413.

What’s the fastest stopover option from London Gatwick Airport to St. Louis?

Shortest average travel time for one-stop one-way flights from London Gatwick Airport to St. Louis, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 11h 25m.

Which airport typically offers the quickest stopover for flights from London Gatwick Airport to St. Louis?

Average stopover duration for one-stop one-way flights from London Gatwick Airport to St. Louis, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 03m.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 17 March 2026.
Check out reviews from past customers who have flown with Finnair from London Gatwick Airport to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,371 reviews
Check prices

Overall

7.6

Comfort

7.5

Food

6.7

Crew

8.2

Entertainment

6.9

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.6
Good
1,371 reviews
Finnair
7.6
Good
1,371 reviews
Check prices

Overall

7.6

Comfort

7.5

Food

6.7

Crew

8.2

Entertainment

6.9

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Related info for your journey

Find useful and relevant information for your journey from Gatwick to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from London Gatwick?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to St. Louis from London Gatwick. Booking flights from London Gatwick to Lambert-St Louis (STL) should be relatively easy as there are 0 daily inbound flights from London Gatwick from 1 airline.

  • How long is the flight from London Gatwick Airport to St. Louis?

    Air France can get you from London Gatwick Airport to St. Louis in just under 16h 44m. Your travel time can differ by up to . London Gatwick Airport and St. Louis are separated by a distance of 4207 mi.

  • What is the cheapest airline to fly from London Gatwick Airport to St. Louis round-trip?

    Finnair, at £695, was found to be the cheapest airline from London Gatwick Airport to St. Louis..

  • Can I find deals for flights from Gatwick to St. Louis that include hotel bookings?

    Yes. In addition to deals on Gatwick to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to St. Louis.

  • Can I find deals for business class flights from Gatwick to St. Louis?

    Yes. Cheapflights offers flight deals from Gatwick to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Gatwick to St. Louis

Discover the top airline that operate flights from Gatwick to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 March 2026.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£695Average£759FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Gatwick to St. Louis?

Cheapflights helps you search for flights from Gatwick to St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Gatwick to St. Louis?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Gatwick to St. Louis.

Can Cheapflights find flights from Gatwick to St. Louis with no change fees?

Yes! Cheapflights helps users easily find flights from Gatwick to St. Louis with no change fees.

Can Cheapflights notify me if prices for flights from Gatwick to St. Louis become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to St. Louis from Gatwick today and book when prices fit your budget.

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