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Cheap flights from London Stansted Airport to St. Louis from £286

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 31/3. Fares are subject to change and may not be available on all flights or dates of travel.
STN — STL
7 Mar — 14 Mar1
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 5 February 2026.

Fri 13/308:05
STN
-
STL
3 stops36h 24m
Multiple Airlines
Tue 17/316:05
STL
-
STN
3 stops23h 35m
Multiple Airlines
Deal found 3/2£839
Mon 25/508:30
STN
-
STL
2 stops17h 34m
Multiple Airlines
Fri 5/607:30
STL
-
STN
2 stops25h 55m
Multiple Airlines
Deal found 2/2£936
Fri 24/410:50
STN
-
STL
2 stops40h 18m
Multiple Airlines
Tue 5/507:45
STL
-
STN
2 stops20h 10m
Multiple Airlines
Deal found 4/2£1,048
Thu 10/917:45
STN
-
STL
2 stops25h 40m
Multiple Airlines
Thu 24/912:10
STL
-
STN
2 stops24h 00m
Multiple Airlines
Deal found 2/2£1,064
Tue 7/717:45
STN
-
STL
2 stops28h 01m
Multiple Airlines
Tue 21/707:30
STL
-
STN
2 stops20h 25m
Multiple Airlines
Deal found 1/2£1,099
Tue 27/1006:40
STN
-
STL
2 stops34h 40m
Multiple Airlines
Mon 2/1120:15
STL
-
STN
2 stops31h 35m
Multiple Airlines
Deal found 2/2£1,124
Mon 29/610:50
STN
-
STL
2 stops34h 56m
Turkish Airlines
Mon 13/706:00
STL
-
STN
2 stops34h 10m
Turkish Airlines
Deal found 3/2£1,268
Fri 4/906:15
STN
-
STL
2 stops38h 03m
Multiple Airlines
Sun 6/908:00
STL
-
STN
2 stops19h 55m
Multiple Airlines
Deal found 2/2£1,321

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 5 February 2026.

Round-trip from

£839

One-way from

£286

Popular in

July

Cheapest in

March

Average price

£613
13/3-17/3
  • 13/3-17/3
  • 6 total stops
  • 59h 59m total
  • London to St. Louis
Search Deals
31/3
  • 31/3
  • 3 total stops
  • 58h 25m total
  • London to St. Louis
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£73 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 5 February 2026.
Use the filters below to find and compare flights from London Stansted Airport to St. Louis that are best for you.

Fly from

Stansted

Fly to

St. Louis

Route

Depart

Return

Price

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Fri 13/3

08:05-15:29

3 stops36h 24m

Lambert-St Louis

Tue 17/3

16:05-20:40

3 stops23h 35m

£839

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Mon 25/5

08:30-20:04

2 stops17h 34m

Lambert-St Louis

Fri 5/6

07:30-15:25

2 stops25h 55m

£936

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Fri 24/4

10:50-21:08

2 stops40h 18m

Lambert-St Louis

Tue 5/5

07:45-09:55

2 stops20h 10m

£1,048

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Tue 7/7

17:45-15:46

2 stops28h 01m

Lambert-St Louis

Tue 21/7

07:30-09:55

2 stops20h 25m

£1,099

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Mon 29/6

10:50-15:46

2 stops34h 56m

Lambert-St Louis

Mon 13/7

06:00-22:10

2 stops34h 10m

£1,268

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Thu 12/3

09:10-14:55

2 stops34h 45m

Lambert-St Louis

Thu 19/3

16:05-19:05

3 stops22h 00m

£1,345

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Sat 27/6

17:45-15:46

2 stops52h 01m

Lambert-St Louis

Mon 6/7

06:00-09:55

2 stops45h 55m

£1,428

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Tue 26/5

17:45-15:46

2 stops28h 01m

Lambert-St Louis

Fri 5/6

06:00-09:55

2 stops45h 55m

£1,430

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Mon 29/6

10:50-15:46

2 stops34h 56m

Lambert-St Louis

Thu 9/7

06:00-16:50

2 stops28h 50m

£1,518

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Mon 20/4

10:50-21:08

2 stops40h 18m

Lambert-St Louis

Fri 24/4

07:45-16:50

2 stops51h 05m

£1,544

Flights are sorted by cheapest return flights first.

Deals found on 2/2

Showing 1-10 of 20 results
1
2

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.

  • 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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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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