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Cheap flights from London Gatwick Airport to St. Louis from £244

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 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — STL
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 14 November 2025.

Fri 12/1214:00LGW - STL
1 stop14h 33mMultiple Airlines
Thu 8/117:11STL - LGW
1 stop34h 49mMultiple Airlines
Deal found 13/11£574
Thu 25/1214:00LGW - STL
1 stop14h 33mMultiple Airlines
Sat 10/117:11STL - LGW
1 stop34h 49mMultiple Airlines
Deal found 13/11£577
Fri 12/1214:00LGW - STL
1 stop14h 33mMultiple Airlines
Wed 7/117:11STL - LGW
1 stop34h 49mMultiple Airlines
Deal found 13/11£600
Wed 10/1213:00LGW - STL
2 stops50h 47mMultiple Airlines
Fri 16/117:11STL - LGW
1 stop34h 54mMultiple Airlines
Deal found 13/11£611
Fri 26/1214:00LGW - STL
1 stop14h 33mMultiple Airlines
Thu 8/117:11STL - LGW
1 stop34h 49mMultiple Airlines
Deal found 12/11£614
Mon 15/1214:00LGW - STL
1 stop14h 33mMultiple Airlines
Thu 8/117:11STL - LGW
1 stop34h 49mMultiple Airlines
Deal found 13/11£616
Sat 13/1214:00LGW - STL
1 stop14h 33mMultiple Airlines
Thu 8/117:11STL - LGW
1 stop34h 49mMultiple Airlines
Deal found 13/11£631

Cheap 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 14 November 2025.

Round-trip from

£546

One-way from

£244

Popular in

December

Cheapest in

March

Average price

£739
American Airlines
  • American Airlines
  • 5/3-9/3
  • 4 total stops
  • 53h 59m total
  • London to St. Louis
Search Deals
16/1
  • 16/1
  • 1 total stop
  • 14h 34m total
  • London to St. Louis
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 14 November 2025.
Use the filters below to find and compare flights from London Gatwick Airport to St. Louis that are best for you.

Fly from

Gatwick

Fly to

St. Louis

Route

Depart

Return

Price

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 5/3

12:30-19:30

2 stops37h 00m

Lambert-St Louis

Mon 9/3

07:35-07:30

2 stops18h 55m

£547

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Fri 12/12

14:00-22:33

1 stop14h 33m

Lambert-St Louis

Wed 7/1

17:11-10:00

1 stop34h 49m

£600

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Wed 10/12

13:00-09:47

2 stops50h 47m

Lambert-St Louis

Fri 16/1

17:11-10:05

1 stop34h 54m

£611

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Fri 26/12

14:00-22:33

1 stop14h 33m

Lambert-St Louis

Thu 8/1

17:11-10:00

1 stop34h 49m

£614

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 15/12

14:00-22:33

1 stop14h 33m

Lambert-St Louis

Wed 7/1

17:11-10:00

1 stop34h 49m

£641

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sat 13/12

14:00-22:33

1 stop14h 33m

Lambert-St Louis

Wed 7/1

17:11-10:00

1 stop34h 49m

£656

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sat 13/12

14:00-22:33

1 stop14h 33m

Lambert-St Louis

Tue 6/1

17:11-06:00

2 stops30h 49m

£752

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sun 14/12

14:10-22:33

1 stop14h 23m

Lambert-St Louis

Tue 6/1

17:11-06:00

2 stops30h 49m

£769

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sun 28/12

14:10-09:45

1 stop25h 35m

Lambert-St Louis

Sun 4/1

22:10-06:00

2 stops49h 50m

£809

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 11/12

14:00-08:59

1 stop24h 59m

Lambert-St Louis

Thu 18/12

10:42-10:00

2 stops17h 18m

£818

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 15 results
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 50% of one-stop itineraries from London Gatwick Airport to St. Louis on Cheapflights.

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.

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 14 November 2025.
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
1,334 reviews
Check prices

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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?

    American Airlines can get you from London Gatwick Airport to St. Louis in just under 37h. 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 £619, 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£619Average£757FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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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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