Find flights
When to book
Airlines
FAQs

Cheap flights from London Stansted Airport to St. Louis from £420

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
STN — STL
9 Jul — 16 Jul1
1 adult

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 4 July 2025.

Round-trip from

£702

One-way from

£420

Popular in

December

Cheapest in

March

Average price

£857
20/9-8/10
  • 20/9-8/10
  • 5 total stops
  • 46h 37m total
  • London to St. Louis
Search Deals
15/9
  • 15/9
  • 2 total stops
  • 42h 05m total
  • London to St. Louis
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 4 July 2025.

Sat 20/907:10STN - STL
2 stops18h 47mMultiple Airlines
Wed 8/1009:15STL - STN
3 stops27h 50mMultiple Airlines
Deal found 1/7£702

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 4 July 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

Sat 20/9

07:10-19:57

2 stops18h 47m

Lambert-St Louis

Wed 8/10

09:15-19:05

3 stops27h 50m

£702

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Mon 15/9

06:05-18:10

2 stops42h 05m

£420

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Mon 22/9

19:50-15:44

2 stops25h 54m

£6,656

Flights are sorted by cheapest return flights first.

Deals found on 3/7

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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 4 July 2025.
Check out reviews from past customers who have flown with Lufthansa from London Stansted Airport to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,207 reviews
Check prices

Overall

6.8

Comfort

6.8

Food

6.3

Crew

7.6

Boarding

7.0

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

BHX - FRA

Not as good as when I traveled many years ago. My main problem was missing my flight from Frankfurt to Birmingham because of very late start from LA and was told delay wil be made up but then I had to wait 5 hours for my next booked fight . Asian vegetarian food was skimpy and horrible.
Lufthansa
6.8
Okay
7,207 reviews
Lufthansa
6.8
Okay
7,207 reviews
Check prices

Overall

6.8

Comfort

6.8

Food

6.3

Crew

7.6

Boarding

7.0

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

BHX - FRA

Not as good as when I traveled many years ago. My main problem was missing my flight from Frankfurt to Birmingham because of very late start from LA and was told delay wil be made up but then I had to wait 5 hours for my next booked fight . Asian vegetarian food was skimpy and horrible.

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.
Site
©2025 Cheapflights