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Cheap flights from London Gatwick Airport to St. Louis from £362

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — STL
7 Dec — 14 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 7 November 2025.

Fri 14/1114:00LGW - STL
2 stops25h 07mMultiple Airlines
Sat 13/1215:30STL - LGW
1 stop12h 35mMultiple Airlines
Deal found 6/11£556
Fri 14/1114:00LGW - STL
2 stops25h 07mMultiple Airlines
Sun 14/1215:30STL - LGW
1 stop12h 30mMultiple Airlines
Deal found 6/11£567
Mon 8/1214:00LGW - STL
1 stop14h 33mMultiple Airlines
Mon 15/1209:54STL - LGW
1 stop18h 06mMultiple Airlines
Deal found 6/11£574
Mon 1/1214:00LGW - STL
1 stop15h 57mMultiple Airlines
Fri 5/1215:30STL - LGW
1 stop12h 30mMultiple Airlines
Deal found 5/11£589
Fri 14/1114:00LGW - STL
1 stop31h 38mMultiple Airlines
Mon 15/1215:30STL - LGW
1 stop12h 30mMultiple Airlines
Deal found 6/11£609
Tue 11/1113:00LGW - STL
2 stops58h 27mMultiple Airlines
Sat 13/1215:30STL - LGW
1 stop12h 35mMultiple Airlines
Deal found 6/11£661
Tue 11/1113:00LGW - STL
2 stops58h 27mMultiple Airlines
Sun 14/1215:30STL - LGW
1 stop12h 30mMultiple Airlines
Deal found 6/11£674
Wed 12/1113:00LGW - STL
2 stops30h 17mMultiple Airlines
Sat 13/1215:30STL - LGW
1 stop12h 35mMultiple Airlines
Deal found 6/11£675
Thu 13/1114:00LGW - STL
2 stops25h 07mMultiple Airlines
Sat 13/1215:30STL - LGW
1 stop12h 35mMultiple Airlines
Deal found 6/11£678

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 7 November 2025.

Round-trip from

£545

One-way from

£477

Popular in

October

Cheapest in

September

Average price

£800
American Airlines
  • American Airlines
  • 5/3-9/3
  • 4 total stops
  • 56h 31m total
  • London to St. Louis
Search Deals
17/12
  • 17/12
  • 3 total stops
  • 31h 45m total
  • London to St. Louis
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£23 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£27 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 7 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

12:30-18:08

2 stops35h 38m

Lambert-St Louis

Mon 9/3

07:35-07:30

2 stops18h 55m

£547

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 1/12

14:00-23:57

1 stop15h 57m

Lambert-St Louis

Fri 5/12

15:30-10:00

1 stop12h 30m

£589

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 8/12

14:00-22:33

1 stop14h 33m

Lambert-St Louis

Mon 15/12

10:47-10:00

2 stops17h 13m

£590

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 22/12

14:00-09:40

2 stops25h 40m

Lambert-St Louis

Mon 29/12

10:40-10:00

1 stop17h 20m

£863

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 24/11

10:20-15:46

2 stops35h 26m

Lambert-St Louis

Mon 1/12

17:24-09:20

2 stops33h 56m

£1,011

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 1/12

10:20-15:40

2 stops35h 20m

Lambert-St Louis

Fri 5/12

17:27-09:20

2 stops33h 53m

£1,031

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Fri 6/2

10:15-13:54

2 stops57h 39m

Lambert-St Louis

Sat 14/2

07:41-09:20

2 stops19h 39m

£1,054

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sat 25/4

17:15-21:03

2 stops33h 48m

Lambert-St Louis

Sat 9/5

17:18-09:55

2 stops34h 37m

£1,098

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Tue 3/3

13:00-09:47

2 stops50h 47m

£362

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Tue 14/4

20:40-23:24

2 stops32h 44m

£372

Flights are sorted by cheapest return flights first.

Deals found on 6/11

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

How much does it cost for a return flight from London Gatwick Airport to St. Louis?

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 7 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
1,335 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Overall

7.6

Crew

8.1

Comfort

7.4

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
1,335 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Overall

7.6

Crew

8.1

Comfort

7.4

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 38m. 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 £622, was found to be the cheapest airline from London Gatwick Airport to St. Louis.. Users have found that Finnair is 29% 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.

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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£622Average£761FlexibilityNo 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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