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Cheap flights from London Gatwick Airport to St. Louis from £268

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 24/1. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — STL
17 Jan — 24 Jan1
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 18 December 2025.

Tue 16/1214:25LGW - STL
2 stops29h 30mMultiple Airlines
Sat 31/116:05STL - LGW
2 stops17h 15mMultiple Airlines
Deal found 16/12£1,300
Wed 17/1219:40LGW - STL
2 stops43h 51mIberia
Sat 31/111:05STL - LGW
2 stops25h 50mIberia
Deal found 17/12£1,390
Wed 17/1211:55LGW - STL
2 stops16h 05mMultiple Airlines
Sat 31/110:25STL - LGW
3 stops18h 30mMultiple Airlines
Deal found 17/12£1,448
Thu 25/1206:25LGW - STL
2 stops22h 18mMultiple Airlines
Sun 18/108:05STL - LGW
2 stops19h 20mMultiple Airlines
Deal found 17/12£1,706
Sun 21/1206:20LGW - STL
2 stops22h 23mMultiple Airlines
Wed 31/1208:05STL - LGW
2 stops19h 20mMultiple Airlines
Deal found 16/12£3,102

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 18 December 2025.

Round-trip from

£351

One-way from

£268

Popular in

December

Cheapest in

March

Average price

£1,023
22/1-26/1
  • 22/1-26/1
  • 2 total stops
  • 33h 17m total
  • London to St. Louis
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24/1
  • 24/1
  • 1 total stop
  • 15h 33m total
  • London to St. Louis
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£25 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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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 18 December 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

Fri 30/1

14:00-23:33

1 stop15h 33m

Lambert-St Louis

Fri 6/2

11:18-10:00

1 stop16h 42m

£381

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 29/1

14:00-10:23

1 stop26h 23m

Lambert-St Louis

Thu 5/2

17:42-10:00

1 stop34h 18m

£411

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 2/2

14:00-23:33

1 stop15h 33m

Lambert-St Louis

Fri 6/2

11:18-10:00

1 stop16h 42m

£424

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 12/1

14:00-22:33

1 stop14h 33m

Lambert-St Louis

Mon 26/1

10:16-10:00

1 stop17h 44m

£466

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Tue 3/2

13:00-06:51

2 stops23h 51m

Lambert-St Louis

Fri 6/2

11:18-10:00

1 stop16h 42m

£473

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 16/3

14:00-23:19

1 stop14h 19m

Lambert-St Louis

Mon 23/3

20:53-10:00

1 stop32h 07m

£547

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sat 24/1

14:00-23:33

1 stop15h 33m

£268

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Tue 20/1

13:00-23:33

2 stops40h 33m

£307

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Fri 15/5

11:30-08:42

2 stops27h 12m

£431

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Wed 20/5

11:35-23:24

2 stops17h 49m

£434

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 16 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 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 £410.

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 18 December 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
1,338 reviews
Check prices

Comfort

7.4

Boarding

7.6

Food

6.7

Overall

7.6

Entertainment

6.9

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
1,338 reviews
Finnair
7.6
Good
1,338 reviews
Check prices

Comfort

7.4

Boarding

7.6

Food

6.7

Overall

7.6

Entertainment

6.9

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.

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

    Finnair, at £609, 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 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£609Average£745FlexibilityNo 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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