HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Stansted

$342+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — STN
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Stansted with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 November 26, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$867
(Mytrip)

One-way from

$472
(Mytrip)

Popular in

June

Cheapest in

November

Average price

$711
Provider with most accurate pricing for Lambert-St Louis-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-London (LON) flights.
Search Deals
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. 23% potential increase in price ($272 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 November 26, 2025.

This Mytrip deal was found by Cheapflights users on 11/26. 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.
Wed 12/104:05 pmSTL - STN
2 stops20h 05mMultiple Airlines
Sat 12/138:25 pmSTN - STL
2 stops23h 30mMultiple Airlines
Deal found 11/26$1,550
This Mytrip deal was found by Cheapflights users on 11/23. 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.
Thu 11/274:05 pmSTL - STN
3 stops25h 15mMultiple Airlines
Sat 11/291:30 pmSTN - STL
3 stops30h 25mMultiple Airlines
Deal found 11/23$1,603
This Mytrip deal was found by Cheapflights users on 11/24. 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.
Sat 12/274:05 pmSTL - STN
3 stops23h 50mMultiple Airlines
Tue 1/65:45 pmSTN - STL
2 stops26h 10mMultiple Airlines
Deal found 11/24$1,612
This Mytrip deal was found by Cheapflights users on 11/24. 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.
Wed 12/34:05 pmSTL - STN
3 stops24h 45mMultiple Airlines
Thu 12/117:45 pmSTN - STL
2 stops25h 44mMultiple Airlines
Deal found 11/24$1,945
This Mytrip deal was found by Cheapflights users on 11/25. 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.
Mon 12/294:53 pmSTL - STN
2 stops22h 02mMultiple Airlines
Sun 1/48:00 pmSTN - STL
2 stops25h 29mMultiple Airlines
Deal found 11/25$2,178
This Mytrip deal was found by Cheapflights users on 11/25. 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.
Sun 12/283:50 pmSTL - STN
2 stops14h 20mMultiple Airlines
Sun 1/48:00 pmSTN - STL
2 stops25h 29mMultiple Airlines
Deal found 11/25$2,209
This Mytrip deal was found by Cheapflights users on 11/25. 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.
Tue 12/235:30 amSTL - STN
3 stops32h 45mMultiple Airlines
Mon 12/299:30 pmSTN - STL
3 stops29h 21mMultiple Airlines
Deal found 11/25$2,212
This Mytrip deal was found by Cheapflights users on 11/23. 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.
Sat 12/274:53 pmSTL - STN
2 stops14h 27mMultiple Airlines
Sat 1/310:30 amSTN - STL
3 stops33h 25mMultiple Airlines
Deal found 11/23$2,257
This Mytrip deal was found by Cheapflights users on 11/25. 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 12/263:50 pmSTL - STN
2 stops23h 10mMultiple Airlines
Sat 1/312:00 pmSTN - STL
3 stops31h 55mMultiple Airlines
Deal found 11/25$2,339

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 November 26, 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 2/24

4:05 pm-11:10 pm

3 stops25h 05m

London Stansted

Sat 3/7

8:30 am-10:59 pm

3 stops20h 29m

$867

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Wed 2/25

4:05 pm-10:40 pm

3 stops24h 35m

London Stansted

Sat 3/7

8:30 am-10:59 pm

3 stops20h 29m

$880

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Thu 5/14

1:30 pm-6:10 pm

3 stops22h 40m

London Stansted

Thu 5/21

6:00 am-10:44 pm

3 stops22h 44m

$993

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Sat 5/9

4:05 pm-9:35 pm

3 stops23h 30m

London Stansted

Tue 5/12

9:20 pm-6:25 pm

3 stops27h 05m

$1,047

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Tue 3/31

7:45 am-10:15 am

2 stops20h 30m

London Stansted

Wed 4/8

11:10 am-9:03 pm

2 stops39h 53m

$1,141

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Fri 4/17

7:45 am-10:15 am

2 stops20h 30m

London Stansted

Wed 4/22

6:15 am-10:59 pm

2 stops22h 44m

$1,141

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Fri 4/17

7:45 am-4:50 pm

2 stops27h 05m

London Stansted

Fri 4/24

11:10 am-9:03 pm

2 stops39h 53m

$1,330

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Fri 4/17

7:45 am-4:50 pm

2 stops27h 05m

London Stansted

Sun 5/3

11:10 am-2:18 pm

2 stops33h 08m

$1,330

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Fri 5/15

1:30 pm-5:40 pm

2 stops22h 10m

London Stansted

Sat 6/6

8:05 pm-1:30 pm

2 stops23h 25m

$1,345

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Sat 3/28

5:18 pm-9:15 am

2 stops34h 57m

London Stansted

Sat 4/4

5:45 pm-9:03 pm

2 stops33h 18m

$1,530

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 19 results
1
2

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.

  • 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
Hayes
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Watford
Borehamwood
Aylesbury
Chipping Norton
Wembley
Folkestone
Eastbourne
Sutton
Milton Keynes

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.