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Cheap flights from London Stansted Airport to St. Louis from £343

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 16/6. Fares are subject to change and may not be available on all flights or dates of travel.
STN — STL
10 May — 17 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Stansted to St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from Stansted to St. Louis
Explore the most affordable flight options available from Stansted to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 April 2026.

Thu 21/507:50
STN
-
STL
3 stops34h 16m
Multiple Airlines
Thu 28/507:05
STL
-
STN
3 stops25h 50m
Multiple Airlines
Deal found 6/4£847
Thu 25/620:30
STN
-
STL
2 stops29h 55m
Multiple Airlines
Thu 30/708:55
STL
-
STN
2 stops26h 15m
Multiple Airlines
Deal found 6/4£859
Wed 13/506:30
STN
-
STL
3 stops19h 39m
Multiple Airlines
Sun 24/514:15
STL
-
STN
2 stops25h 05m
Multiple Airlines
Deal found 6/4£907
Sun 3/506:35
STN
-
STL
3 stops19h 50m
Multiple Airlines
Tue 5/511:15
STL
-
STN
3 stops23h 25m
Multiple Airlines
Deal found 6/4£919
Sat 23/513:55
STN
-
STL
2 stops29h 30m
Multiple Airlines
Sat 30/507:05
STL
-
STN
3 stops29h 25m
Multiple Airlines
Deal found 8/4£938
Sun 3/520:55
STN
-
STL
3 stops29h 30m
Multiple Airlines
Sun 10/513:05
STL
-
STN
3 stops28h 10m
Multiple Airlines
Deal found 5/4£947
Thu 16/706:30
STN
-
STL
3 stops37h 32m
Multiple Airlines
Thu 30/714:40
STL
-
STN
2 stops20h 30m
Multiple Airlines
Deal found 7/4£954
Tue 15/922:35
STN
-
STL
2 stops21h 25m
Multiple Airlines
Thu 24/912:10
STL
-
STN
3 stops25h 25m
Multiple Airlines
Deal found 7/4£957
Thu 1/1021:35
STN
-
STL
2 stops22h 25m
Multiple Airlines
Thu 15/1008:55
STL
-
STN
3 stops25h 25m
Multiple Airlines
Deal found 5/4£1,003
Wed 9/921:30
STN
-
STL
3 stops46h 30m
Multiple Airlines
Wed 16/908:55
STL
-
STN
3 stops25h 10m
Multiple Airlines
Deal found 7/4£1,004
Sun 28/610:50
STN
-
STL
2 stops40h 26m
Turkish Airlines
Sun 5/717:33
STL
-
STN
2 stops41h 07m
Turkish Airlines
Deal found 9/4£1,017

Find flight deals from Stansted to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Stansted (STN) 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 10 April 2026.

Round-trip from

£847

One-way from

£343

Popular in

July

Cheapest in

February

Average price

£690
21/5-28/5
  • 21/5-28/5
  • 6 total stops
  • 60h 06m total
  • London to St. Louis
Search Deals
16/6
  • 16/6
  • 3 total stops
  • 47h 39m total
  • London to St. Louis
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£66 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Stansted 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 10 April 2026.
Use the filters below to find and compare flights from London Stansted Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Sun 3/5

20:55-20:25

3 stops29h 30m

Lambert-St Louis

Sun 10/5

13:05-23:15

3 stops28h 10m

£947

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Tue 28/4

17:35-21:13

2 stops33h 38m

Lambert-St Louis

Tue 5/5

07:45-09:55

2 stops20h 10m

£1,082

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Fri 3/7

22:50-14:02

2 stops21h 12m

Lambert-St Louis

Fri 17/7

08:55-22:20

2 stops31h 25m

£1,108

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Mon 20/4

10:50-21:13

2 stops40h 23m

Lambert-St Louis

Thu 30/4

07:45-09:55

2 stops44h 10m

£1,121

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Sat 27/6

10:50-21:16

2 stops40h 26m

Lambert-St Louis

Mon 6/7

17:33-22:10

2 stops22h 37m

£1,125
Fastest return journey

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Mon 25/5

06:05-20:25

3 stops20h 20m

Lambert-St Louis

Mon 1/6

14:15-13:00

2 stops16h 45m

£1,169

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Sat 23/5

18:00-20:09

3 stops32h 09m

Lambert-St Louis

Sat 30/5

07:05-20:50

3 stops31h 45m

£1,178

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Fri 24/4

17:35-21:13

2 stops33h 38m

Lambert-St Louis

Tue 2/6

06:00-09:55

2 stops21h 55m

£1,179

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Mon 29/6

10:50-21:16

2 stops40h 26m

Lambert-St Louis

Sun 5/7

17:33-22:10

2 stops22h 37m

£1,193
Cheapest one-way

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Thu 16/4

11:05-23:19

3 stops42h 14m

£394

Flights are sorted by cheapest return flights first.

Deals found on 10/4

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Stansted to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Stansted 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.

Related info for your journey

Find useful and relevant information for your journey from Stansted 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 Stansted?

    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 Stansted. Booking flights from London Stansted to Lambert-St Louis (STL) should be relatively easy as there are 0 daily inbound flights from London Stansted from 0 different airlines.

  • How long is the flight from London Stansted Airport to St. Louis?

    A quick flight from London Stansted Airport to St. Louis can take about 33h 38m. Turkish Airlines provides one of the quickest options available for as low as £1,082. The distance between London Stansted Airport and St. Louis is about 4200 mi.

  • Can I find deals for flights from Stansted to St. Louis that include hotel bookings?

    Yes. In addition to deals on Stansted to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Stansted to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to St. Louis.

  • Can I find deals for business class flights from Stansted to St. Louis?

    Yes. Cheapflights offers flight deals from Stansted 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

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How does Cheapflights help users find flights from Stansted to St. Louis?

Deals for Stansted to St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Stansted to St. Louis?

Millions of users choose and trust Cheapflights to book the best flight deals from Stansted to St. Louis for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Stansted to St. Louis with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Stansted to St. Louis, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Stansted to St. Louis become cheaper?

Not ready to book yet? You can track prices for flights from Stansted to St. Louis on Cheapflights with our Price Alert feature and get notified when better prices are available.

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