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Stansted

$314+ Cheap flights from St. Louis (STL) to Stansted (STN)

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — STN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from St. Louis to Stansted

Cheapest flights from St. Louis to Stansted
Explore the most affordable flight options available from St. Louis to Stansted. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Mytrip deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:53 pmSTL - STN
2 stops21h 12mMultiple Airlines
Tue 12/305:40 pmSTN - STL
2 stops26h 15mMultiple Airlines
Deal found 12/15$1,849

Find flight deals from St. Louis to Stansted

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Stansted (STN). 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 December 18, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$1,144
(Turkish Airlines)

One-way from

$314
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,049
Provider with most accurate pricing for Lambert-St Louis-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-London (LON) flights.
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From Lambert-St Louis to London Stansted
Search Deals
One-way flight from Lambert-St Louis to London Stansted
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($284 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Stansted 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 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from St. Louis to London Stansted Airport that are best for you.

Fly from

St. Louis

Fly to

Stansted

Route

Depart

Return

Price

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Tue 4/21

7:45 am-4:50 pm

2 stops27h 05m

London Stansted

Tue 4/28

5:45 pm-9:03 pm

2 stops33h 18m

$1,144

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Sat 3/7

4:05 pm-11:35 pm

3 stops25h 30m

London Stansted

Thu 3/12

6:15 pm-2:55 pm

2 stops25h 40m

$1,171

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Sun 5/17

7:30 am-6:25 pm

3 stops28h 55m

London Stansted

Sat 5/30

8:05 pm-1:25 pm

2 stops23h 20m

$1,190

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Wed 4/1

3:30 pm-12:50 pm

2 stops15h 20m

London Stansted

Wed 4/8

8:15 pm-3:24 pm

3 stops25h 09m

$1,239

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Thu 4/9

7:45 am-4:50 pm

2 stops27h 05m

London Stansted

Sat 4/18

5:45 pm-9:03 pm

2 stops33h 18m

$1,333

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Fri 6/5

1:00 pm-5:40 pm

2 stops22h 40m

London Stansted

Fri 7/10

6:25 pm-8:02 pm

3 stops31h 37m

$1,449

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Sat 3/28

5:18 pm-9:15 am

2 stops34h 57m

London Stansted

Tue 3/31

5:45 pm-9:03 pm

2 stops33h 18m

$1,506

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Fri 4/10

7:45 am-10:15 am

2 stops20h 30m

London Stansted

Sat 4/18

5:45 pm-9:03 pm

2 stops33h 18m

$1,522

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Sun 4/19

7:45 am-10:15 am

2 stops20h 30m

London Stansted

Sat 4/25

5:45 pm-9:03 pm

2 stops33h 18m

$1,533

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Sat 5/2

5:18 pm-10:15 am

2 stops34h 57m

London Stansted

Sat 5/9

11:10 am-9:04 pm

2 stops39h 54m

$1,533

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 19 results
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Best time to book a flight from St. Louis to Stansted

Have a flexible travel schedule? Discover the best time to fly to Stansted from St. Louis with our price prediction graph.
Estimated round-trip 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 St. Louis to Stansted. 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 from for flights from St. Louis to London Stansted?

    If you book a flight to London Stansted from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to London Stansted per day from 0 different airlines.

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

    For as low as $1,144, Turkish Airlines can have you in London Stansted Airport from St. Louis in 27h 05m. Airlines will cover a distance of 4200 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Stansted 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

Traveling to a place near London Stansted Airport?

Book flights to London Stansted Airport if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Wembley
Folkestone
Eastbourne

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