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Cheap flights from London Gatwick Airport to St. Louis from £557

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 22/12. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — STL
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025.

Round-trip from

£666

One-way from

£638

Popular in

July

Cheapest in

September

Average price

£709
American Airlines
  • American Airlines
  • 5/3-9/3
  • 4 total stops
  • 58h 23m total
  • London to St. Louis
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30/10
  • 30/10
  • 2 total stops
  • 32h 20m total
  • London to St. Louis
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£47 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Gatwick to St. Louis

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 16 September 2025.

Thu 9/1010:45LGW - STL
3 stops34h 33mMultiple Airlines
Wed 15/1015:30STL - LGW
2 stops22h 10mMultiple Airlines
Deal found 14/9£808
Wed 26/1111:40LGW - STL
2 stops17h 05mMultiple Airlines
Sun 30/1115:50STL - LGW
2 stops24h 00mMultiple Airlines
Deal found 15/9£826
Wed 24/920:40LGW - STL
2 stops29h 45mIberia
Wed 1/1009:46STL - LGW
2 stops19h 04mIberia
Deal found 15/9£908
Thu 23/1012:40LGW - STL
1 stop13h 08mMultiple Airlines
Sun 26/1010:57STL - LGW
3 stops28h 38mMultiple Airlines
Deal found 15/9£918
Tue 7/1020:40LGW - STL
2 stops29h 46mIberia
Wed 22/1009:35STL - LGW
2 stops19h 20mIberia
Deal found 15/9£921
Fri 17/1015:40LGW - STL
3 stops32h 30mMultiple Airlines
Thu 30/1010:57STL - LGW
3 stops28h 43mMultiple Airlines
Deal found 15/9£947
Sat 8/1106:25LGW - STL
2 stops39h 21mTurkish Airlines
Sat 22/1117:24STL - LGW
2 stops40h 46mTurkish Airlines
Deal found 14/9£1,049
Fri 17/1015:05LGW - STL
2 stops31h 03mMultiple Airlines
Fri 24/1009:43STL - LGW
2 stops16h 27mMultiple Airlines
Deal found 14/9£1,050
Thu 23/1012:40LGW - STL
1 stop13h 08mMultiple Airlines
Tue 28/1016:05STL - LGW
1 stop12h 40mMultiple Airlines
Deal found 15/9£1,120
Thu 16/1017:15LGW - STL
2 stops27h 12mTurkish Airlines
Tue 21/1015:23STL - LGW
2 stops36h 32mTurkish Airlines
Deal found 14/9£1,128

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 16 September 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

11:20-17:13

2 stops35h 53m

Lambert-St Louis

Mon 9/3

05:30-09:00

2 stops22h 30m

£666

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 1/1

14:00-22:46

1 stop14h 46m

Lambert-St Louis

Thu 29/1

12:20-10:00

2 stops39h 40m

£752

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 9/10

10:45-15:18

3 stops34h 33m

Lambert-St Louis

Wed 15/10

15:30-19:40

2 stops22h 10m

£808

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Wed 26/11

11:40-22:45

2 stops17h 05m

Lambert-St Louis

Sun 30/11

16:05-21:50

3 stops23h 45m

£833

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 23/10

12:40-19:48

1 stop13h 08m

Lambert-St Louis

Sun 26/10

10:57-20:35

3 stops28h 38m

£918

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Tue 7/10

20:40-20:26

2 stops29h 46m

Lambert-St Louis

Wed 22/10

09:35-10:55

2 stops19h 20m

£921

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 22/12

07:55-21:07

2 stops19h 12m

£557

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 30/10

11:35-14:55

2 stops32h 20m

£638

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 2/10

10:45-19:38

2 stops14h 53m

£691

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sun 21/12

11:55-21:43

2 stops15h 48m

£742

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 12 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 16 September 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
1,323 reviews
Check prices

Overall

7.6

Food

6.7

Boarding

7.6

Entertainment

6.9

Comfort

7.5

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
1,323 reviews
Finnair
7.6
Good
1,323 reviews
Check prices

Overall

7.6

Food

6.7

Boarding

7.6

Entertainment

6.9

Comfort

7.5

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 35h 53m. 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 £599, was found to be the cheapest airline from London Gatwick Airport to St. Louis.. Users have found that Finnair is 27% cheaper than the other options available to this destination.

  • 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.

  • What is the cheapest month to book a flight from London Gatwick Airport to St. Louis?

    Currently, February is the cheapest month in which you can book a flight from London Gatwick Airport to St. Louis (average of £722). Flying from London Gatwick Airport to St. Louis in December is currently the most expensive (average of £1,033). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£599Average£733FlexibilityNo 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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