HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Luton

$276+ Cheap flights from St. Louis (STL) to Luton (LTN)

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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LTN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Luton 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 Luton

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Luton (LTN). 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 September 11, 2025.

Round-trip from

$1,186
(Mytrip)

One-way from

$276
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$818
From Lambert-St Louis to London Luton
Search Deals
One-way flight from Lambert-St Louis to London Luton
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($251 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from St. Louis to Luton

Cheapest flights from St. Louis to Luton
Explore the most affordable flight options available from St. Louis to Luton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/10. 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 10/164:05 pmSTL - LTN
3 stops22h 50mMultiple Airlines
Fri 10/243:45 pmLTN - STL
3 stops29h 33mMultiple Airlines
Deal found 9/10$1,186
This Mytrip deal was found by Cheapflights users on 9/10. 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 10/59:15 amSTL - LTN
2 stops24h 25mMultiple Airlines
Wed 10/159:50 pmLTN - STL
3 stops27h 48mMultiple Airlines
Deal found 9/10$1,311
This Mytrip deal was found by Cheapflights users on 9/9. 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 10/64:05 pmSTL - LTN
2 stops17h 55mMultiple Airlines
Wed 10/229:50 pmLTN - STL
3 stops23h 28mMultiple Airlines
Deal found 9/9$1,376
This Mytrip deal was found by Cheapflights users on 9/9. 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 9/229:15 amSTL - LTN
2 stops24h 45mMultiple Airlines
Thu 9/259:10 pmLTN - STL
2 stops24h 08mMultiple Airlines
Deal found 9/9$1,532
This Mytrip deal was found by Cheapflights users on 9/9. 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 9/134:05 pmSTL - LTN
2 stops15h 40mMultiple Airlines
Fri 9/199:05 pmLTN - STL
3 stops28h 33mMultiple Airlines
Deal found 9/9$1,734
This Mytrip deal was found by Cheapflights users on 9/10. 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 11/84:05 pmSTL - LTN
3 stops25h 05mMultiple Airlines
Thu 11/132:00 pmLTN - STL
2 stops29h 55mMultiple Airlines
Deal found 9/10$1,744
This Mytrip deal was found by Cheapflights users on 9/10. 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 10/104:05 pmSTL - LTN
2 stops26h 05mMultiple Airlines
Fri 10/177:00 amLTN - STL
2 stops18h 38mMultiple Airlines
Deal found 9/10$1,908
This Mytrip deal was found by Cheapflights users on 9/11. 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 10/111:30 pmSTL - LTN
2 stops13h 45mMultiple Airlines
Sat 10/186:05 amLTN - STL
3 stops32h 04mMultiple Airlines
Deal found 9/11$1,951
This Mytrip deal was found by Cheapflights users on 9/11. 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 9/251:30 pmSTL - LTN
3 stops25h 10mMultiple Airlines
Mon 9/299:20 pmLTN - STL
3 stops30h 17mMultiple Airlines
Deal found 9/11$1,970

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Luton 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 September 11, 2025.
Use the filters below to find and compare flights from St. Louis to London Luton Airport that are best for you.

Fly from

St. Louis

Fly to

Luton

Route

Depart

Return

Price

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

Thu 10/16

4:05 pm-8:55 pm

3 stops22h 50m

London Luton

Fri 10/24

3:45 pm-3:18 pm

3 stops29h 33m

$1,186

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

Sun 10/5

9:15 am-3:40 pm

2 stops24h 25m

London Luton

Wed 10/15

9:50 pm-7:38 pm

3 stops27h 48m

$1,311

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

Mon 10/6

4:05 pm-4:00 pm

2 stops17h 55m

London Luton

Wed 10/22

9:50 pm-3:18 pm

3 stops23h 28m

$1,376

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

Mon 9/22

9:15 am-4:00 pm

2 stops24h 45m

London Luton

Thu 9/25

9:10 pm-3:18 pm

2 stops24h 08m

$1,532

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

Sat 11/8

4:05 pm-11:10 pm

3 stops25h 05m

London Luton

Thu 11/13

2:00 pm-1:55 pm

2 stops29h 55m

$1,744

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

Fri 10/10

4:05 pm-12:10 am

2 stops26h 05m

London Luton

Fri 10/17

7:00 am-7:38 pm

2 stops18h 38m

$1,908

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

Sat 10/11

1:30 pm-9:15 am

2 stops13h 45m

London Luton

Sat 10/18

6:05 am-8:09 am

3 stops32h 04m

$1,951

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

Thu 9/25

1:30 pm-8:40 pm

3 stops25h 10m

London Luton

Mon 9/29

9:20 pm-9:37 pm

3 stops30h 17m

$1,970

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

Sat 10/4

7:55 pm-7:50 am

3 stops53h 55m

$276

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

Sat 11/15

4:33 pm-8:30 am

3 stops57h 57m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 14 results
1
2

Best time to book a flight from St. Louis to Luton

Have a flexible travel schedule? Discover the best time to fly to Luton 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 Luton. 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 Luton?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to London Luton. You should not have trouble finding flights to London Luton from Lambert-St Louis; the airport handles an average of 0 outbound flights to London Luton per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the St. Louis airport to London Luton. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Luton 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 Luton Airport?

Book flights to London Luton Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Wembley
Folkestone
Chichester
Arundel

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.