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Cheap flights from St. Louis to London from £239

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to London departing on 25/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from St. Louis to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:05 - 20:55
STL
-
STN
23h 50m
3 stops
Multiple Airlines Logo
17:55 - 13:25
STN
-
STL
25h 30m
2 stops
£487Multiple Airlines
Mon, 23 Mar - Tue, 7 Apr
Multiple Airlines Logo
15:50 - 20:15
STL
-
STN
22h 25m
2 stops
Multiple Airlines Logo
10:25 - 14:55
STN
-
STL
33h 30m
2 stops
£492Multiple Airlines
Sun, 1 Mar - Tue, 10 Mar
Multiple Airlines Logo
16:05 - 20:55
STL
-
STN
23h 50m
3 stops
Multiple Airlines Logo
17:55 - 13:25
STN
-
STL
25h 30m
2 stops
£497Multiple Airlines
Mon, 23 Mar - Tue, 7 Apr
Multiple Airlines Logo
16:05 - 20:30
STL
-
STN
23h 25m
3 stops
Multiple Airlines Logo
07:55 - 13:25
STN
-
STL
35h 30m
2 stops
£501Multiple Airlines
Tue, 24 Mar - Tue, 31 Mar
Multiple Airlines Logo
15:30 - 23:05
STL
-
STN
25h 35m
2 stops
Multiple Airlines Logo
17:15 - 15:24
STN
-
STL
28h 09m
3 stops
£506Multiple Airlines
Sun, 12 Apr - Sat, 18 Apr
Multiple Airlines Logo
16:05 - 20:30
STL
-
STN
23h 25m
3 stops
Multiple Airlines Logo
11:00 - 13:25
STN
-
STL
32h 25m
3 stops
£511Multiple Airlines
Tue, 24 Mar - Tue, 31 Mar
Multiple Airlines Logo
07:30 - 22:05
STL
-
STN
32h 35m
3 stops
Multiple Airlines Logo
20:15 - 13:25
STN
-
STL
23h 10m
2 stops
£531Multiple Airlines
Wed, 6 May - Tue, 12 May
Multiple Airlines Logo
16:05 - 18:40
STL
-
STN
20h 35m
3 stops
Multiple Airlines Logo
18:45 - 20:05
STN
-
STL
31h 20m
3 stops
£540Multiple Airlines
Mon, 27 Apr - Mon, 4 May
Multiple Airlines Logo
07:30 - 21:20
STL
-
STN
31h 50m
2 stops
Multiple Airlines Logo
18:00 - 13:25
STN
-
STL
25h 25m
2 stops
£549Multiple Airlines
Tue, 5 May - Thu, 14 May
Multiple Airlines Logo
07:30 - 21:20
STL
-
STN
31h 50m
2 stops
Multiple Airlines Logo
06:30 - 12:06
STN
-
STL
35h 36m
2 stops
£554Multiple Airlines
Mon, 4 May - Fri, 8 May

Turkish Airlines flights from St. Louis to London Stansted Airport

Our best Turkish Airlines deals on St. Louis to London Stansted Airport flight tickets
Turkish Airlines
30 Mar
STL07:45Lambert-St Louis
51h 05m
2 stops
STN16:50London Stansted
14 Apr
STN17:45London Stansted
33h 23m
2 stops
STL21:08Lambert-St Louis
£845
Turkish Airlines
30 Mar
STL07:45Lambert-St Louis
32h 25m
2 stops
STN22:10London Stansted
8 Apr
STN10:50London Stansted
40h 18m
2 stops
STL21:08Lambert-St Louis
£846
Turkish Airlines
25 Apr
STL07:45Lambert-St Louis
44h 10m
2 stops
STN09:55London Stansted
3 May
STN06:15London Stansted
44h 53m
2 stops
STL21:08Lambert-St Louis
£875

momondo Fare Finder

 
Customise your flight search to find flights from St. Louis to London Stansted Airport 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, momondo users made 279,928 searches. Data last updated 7 February 2026.
Use the filters below to find and compare flights from St. Louis to London Stansted Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Mon 23/3

16:05-20:55

3 stops23h 50m

London Stansted

Tue 7/4

17:55-13:25

2 stops25h 30m

£487

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Sun 1/3

15:50-20:15

2 stops22h 25m

London Stansted

Tue 10/3

10:25-14:55

2 stops33h 30m

£492

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Mon 23/3

16:05-20:55

3 stops23h 50m

London Stansted

Tue 7/4

17:55-13:25

2 stops25h 30m

£497

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Tue 24/3

16:05-20:30

3 stops23h 25m

London Stansted

Tue 31/3

07:55-13:25

2 stops35h 30m

£501

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Sun 12/4

15:30-23:05

2 stops25h 35m

London Stansted

Sat 18/4

17:15-15:24

3 stops28h 09m

£506

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Tue 24/3

16:05-20:30

3 stops23h 25m

London Stansted

Tue 31/3

11:00-13:25

3 stops32h 25m

£511

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Wed 6/5

07:30-22:05

3 stops32h 35m

London Stansted

Tue 12/5

20:15-13:25

2 stops23h 10m

£531

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Mon 27/4

16:05-18:40

3 stops20h 35m

London Stansted

Mon 4/5

18:45-20:05

3 stops31h 20m

£540

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Tue 5/5

07:30-21:20

2 stops31h 50m

London Stansted

Thu 14/5

18:00-13:25

2 stops25h 25m

£549

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Mon 4/5

07:30-21:20

2 stops31h 50m

London Stansted

Fri 8/5

06:30-12:06

2 stops35h 36m

£554

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

When to book flights from St. Louis to London Stansted Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to London Stansted Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap St. Louis to London Stansted Airport (STL to STN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to London Stansted Airport

Fastest flight time

13h 49m

Direct flights

None
The fastest flight from St. Louis to London Stansted Airport takes 13h 49m
There are no direct flights from St. Louis to London Stansted Airport. There are no popular flight routes from St. Louis to London Stansted Airport.
Search flight deals

  • How far is Lambert-St Louis to London Stansted by plane?

    London Stansted is 4199.6 mi away from Lambert-St Louis. In terms of flight time, this usually takes a little over 13h 49m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to London Stansted Airport?

    Prices for flights from Lambert-St Louis Airport to London Stansted Airport are updated daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to London Stansted Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to London Stansted Airport.

  • What documentation or ID do you need to fly to London Stansted Airport?

    The travel and health documents you'll need for your trip to London Stansted Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Stansted Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from St. Louis to London Stansted Airport?

    Price Alerts will notify you by email when the price for flights to London Stansted Airport from St. Louis decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from St. Louis to London Stansted Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Dover
Folkestone
Bedford
Colchester
Wembley
Worthing
Ramsgate

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to London. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to London flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to London?

momondo helps you find the best flight between St. Louis and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Stansted Airport trip

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