Find flights
When to book
FAQs

Cheap flights from London Stansted Airport to St. Louis from £619

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
STN — STL
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheap 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 17 September 2025.

Round-trip from

£849

One-way from

£619

Popular in

December

Cheapest in

March

Average price

£686
23/10-26/10
  • 23/10-26/10
  • 4 total stops
  • 33h 08m total
  • London to St. Louis
Search Deals
6/10
  • 6/10
  • 3 total stops
  • 34h 52m total
  • London to St. Louis
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£31 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Stansted to St. Louis

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 17 September 2025.

Thu 23/1006:55STN - STL
2 stops14h 23mMultiple Airlines
Sun 26/1016:50STL - STN
2 stops18h 45mMultiple Airlines
Deal found 15/9£849
Fri 17/1011:15STN - STL
3 stops36h 55mMultiple Airlines
Thu 30/1016:05STL - STN
3 stops26h 30mMultiple Airlines
Deal found 15/9£861
Tue 7/1008:25STN - STL
2 stops35h 05mMultiple Airlines
Wed 22/1015:30STL - STN
2 stops22h 20mMultiple Airlines
Deal found 16/9£941
Sun 7/1213:55STN - STL
3 stops35h 11mMultiple Airlines
Thu 18/1216:05STL - STN
3 stops25h 35mMultiple Airlines
Deal found 15/9£1,211
Thu 9/1014:50STN - STL
2 stops28h 40mMultiple Airlines
Sat 18/1016:05STL - STN
2 stops25h 20mMultiple Airlines
Deal found 16/9£1,362
Wed 8/1018:00STN - STL
3 stops27h 18mMultiple Airlines
Tue 21/1009:15STL - STN
3 stops22h 45mMultiple Airlines
Deal found 16/9£1,539
Thu 23/1017:15STN - STL
2 stops26h 15mMultiple Airlines
Tue 28/1016:05STL - STN
3 stops23h 10mMultiple Airlines
Deal found 15/9£1,815
Thu 16/1017:15STN - STL
2 stops26h 15mMultiple Airlines
Thu 23/1016:05STL - STN
3 stops25h 15mMultiple Airlines
Deal found 16/9£1,826

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 17 September 2025.
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

Thu 23/10

06:55-15:18

2 stops14h 23m

Lambert-St Louis

Sun 26/10

16:50-16:35

2 stops18h 45m

£849

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Fri 17/10

11:15-18:10

3 stops36h 55m

Lambert-St Louis

Thu 30/10

16:05-23:35

3 stops26h 30m

£861

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Tue 7/10

08:25-13:30

2 stops35h 05m

Lambert-St Louis

Wed 22/10

15:30-19:50

2 stops22h 20m

£941

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Sun 7/12

13:55-19:06

3 stops35h 11m

Lambert-St Louis

Thu 18/12

16:05-23:40

3 stops25h 35m

£1,211

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Thu 9/10

14:50-13:30

2 stops28h 40m

Lambert-St Louis

Sat 18/10

16:05-23:25

2 stops25h 20m

£1,362

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Thu 9/10

15:00-19:57

2 stops34h 57m

Lambert-St Louis

Wed 15/10

05:00-13:30

3 stops26h 30m

£1,516

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Wed 8/10

18:00-15:18

3 stops27h 18m

Lambert-St Louis

Tue 21/10

09:15-14:00

3 stops22h 45m

£1,539

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Thu 23/10

17:15-13:30

2 stops26h 15m

Lambert-St Louis

Tue 28/10

16:05-20:15

3 stops23h 10m

£1,815

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Mon 6/10

15:05-19:57

3 stops34h 52m

£619

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Thu 2/10

20:00-13:30

2 stops23h 30m

£645

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 11 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.

  • What is the cheapest month to book a flight from London Stansted Airport to St. Louis?

    Currently, February is the cheapest month in which you can book a flight from London Stansted Airport to St. Louis (average of £722). Flying from London Stansted Airport to St. Louis in December is currently the most expensive (average of £1,033). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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.