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Cheap flights from St. Louis (STL) to London (LON) from $273

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — LON
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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The best prices from Lambert-St Louis to London are usually found in February or April, booked 9 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from St. Louis to London

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to London (LON). 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 May 16, 2024.

Popular in

June

Cheapest in

February

Round-trip from

$643

One-way from

$540
High demand for flights, 38% potential price rise
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Best time to find cheap flights, 23% potential price drop
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From Lambert-St Louis to London (LON)
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One-way flight from Lambert-St Louis to London (LON)
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What is the cheapest day to fly round-trip from St. Louis to London?

Friday flights are generally found to be more expensive for flights from St. Louis to London. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.

How far in advance should I book a flight from St. Louis to London?

Travelers have found it’s best to book a flight 10 days in advance to save up to 13% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 10 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to London 1-2 weeks in advance for as low as $586, or $938 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to London?

Flights from St. Louis to London lean towards being more expensive in June. Prices are generally better when you fly from St. Louis to London in February, with the cheapest ticket starting at $622.

When is the cheapest time to fly from St. Louis to London (STL - LON)?

It’s optimal to fly from St. Louis to London in the afternoon. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight in the evening.

Cheap Finnair flights from St. Louis to London

Explore cheap flight options specifically provided by Finnair for the route between St. Louis and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 16, 2024.
Peruse some of the lowest-priced Finnair flights we've found from St. Louis to London. Deals update often to give you more flight options matching your criteria
Fri 6/146:08 pmSTL - LHR
1 stop10h 12mFinnair
Sun 6/2310:30 amLHR - STL
1 stop14h 13mFinnair
Deal found 5/14$730
Fri 5/315:08 pmSTL - LHR
1 stop23h 02mFinnair
Thu 6/610:30 amLHR - STL
1 stop14h 13mFinnair
Deal found 5/15$930

Cheap United Airlines flights from St. Louis to London

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 16, 2024.
To aid your search, here are some of the cheapest United Airlines flights we've found from St. Louis to London. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Mon 9/235:20 pmSTL - LHR
1 stop30h 35mUnited Airlines
Thu 10/33:50 pmLHR - STL
1 stop29h 30mUnited Airlines
Deal found 5/15$733
Tue 9/176:34 amSTL - LHR
1 stop17h 21mUnited Airlines
Tue 9/246:50 amLHR - STL
2 stops14h 03mUnited Airlines
Deal found 5/16$744
Sun 6/99:50 amSTL - LHR
1 stop14h 45mUnited Airlines
Wed 6/196:50 amLHR - STL
2 stops20h 54mUnited Airlines
Deal found 5/16$748
Wed 9/116:15 amSTL - LHR
1 stop23h 20mUnited Airlines
Sat 9/216:00 pmLHR - STL
1 stop27h 20mUnited Airlines
Deal found 5/16$787
Wed 9/251:15 pmSTL - LHR
2 stops13h 05mUnited Airlines
Tue 10/19:30 amLHR - STL
1 stop34h 00mUnited Airlines
Deal found 5/16$795
Fri 8/235:01 pmSTL - LHR
1 stop12h 34mUnited Airlines
Mon 8/267:25 amLHR - STL
2 stops15h 46mUnited Airlines
Deal found 5/15$842
Mon 6/105:25 pmSTL - LHR
1 stop10h 45mUnited Airlines
Thu 6/278:30 amLHR - STL
1 stop12h 51mUnited Airlines
Deal found 5/14$895
Sat 6/153:10 pmSTL - LHR
1 stop11h 20mUnited Airlines
Thu 6/278:30 amLHR - STL
1 stop12h 51mUnited Airlines
Deal found 5/14$945
Sun 5/2610:15 amSTL - LHR
2 stops16h 05mUnited Airlines
Mon 6/36:50 amLHR - STL
2 stops14h 51mUnited Airlines
Deal found 5/14$946

Cheap St. Louis to London flights in May & June 2024

Find cheap flight options from St. Louis to London specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,644,845 searches. Prices were last updated on May 16, 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Tue 5/2112:53 pmSTL - LGW
2 stops15h 07mDelta
Thu 5/3012:00 pmLGW - STL
2 stops17h 40mDelta
Deal found 5/16$724
Fri 6/147:44 pmSTL - LGW
1 stop32h 16mMultiple Airlines
Fri 6/218:40 pmLGW - STL
2 stops29h 21mMultiple Airlines
Deal found 5/15$726
Fri 6/146:08 pmSTL - LHR
1 stop10h 12mFinnair
Sun 6/2310:30 amLHR - STL
1 stop14h 13mFinnair
Deal found 5/14$730
Fri 6/217:44 pmSTL - LGW
1 stop32h 16mMultiple Airlines
Mon 6/242:00 pmLGW - STL
1 stop26h 57mMultiple Airlines
Deal found 5/14$736
Fri 6/147:44 pmSTL - LGW
1 stop32h 16mMultiple Airlines
Fri 6/212:00 pmLGW - STL
1 stop27h 13mMultiple Airlines
Deal found 5/15$739
Sun 6/94:55 pmSTL - LHR
1 stop32h 45mUnited Airlines
Wed 6/193:50 pmLHR - STL
1 stop29h 31mUnited Airlines
Deal found 5/15$740
Tue 5/2111:00 amSTL - LHR
1 stop13h 30mAir Canada
Thu 5/309:30 amLHR - STL
1 stop17h 35mAir Canada
Deal found 5/16$741
Mon 6/35:55 amSTL - LHR
1 stop10h 15mBritish Airways
Mon 6/107:35 pmLHR - STL
2 stops27h 12mBritish Airways
Deal found 5/14$743
Sun 5/1911:00 amSTL - LHR
1 stop12h 55mMultiple Airlines
Fri 6/79:30 amLHR - STL
1 stop17h 35mMultiple Airlines
Deal found 5/15$745

St. Louis to London 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and London in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 16, 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Tue 9/172:35 pmSTL - LGW
1 stop13h 25mMultiple Airlines
Tue 9/2412:00 pmLGW - STL
1 stop28h 46mMultiple Airlines
Deal found 5/16$533
Sat 9/1411:39 amSTL - LGW
1 stop16h 21mMultiple Airlines
Tue 9/2412:00 pmLGW - STL
1 stop28h 46mMultiple Airlines
Deal found 5/15$535
Tue 9/242:35 pmSTL - LGW
1 stop13h 25mMultiple Airlines
Wed 10/22:00 pmLGW - STL
1 stop14h 14mMultiple Airlines
Deal found 5/15$611
Tue 10/12:35 pmSTL - LGW
1 stop13h 25mMultiple Airlines
Wed 10/92:00 pmLGW - STL
1 stop14h 14mMultiple Airlines
Deal found 5/15$612
Wed 9/44:31 pmSTL - LGW
1 stop35h 29mMultiple Airlines
Wed 9/182:00 pmLGW - STL
1 stop14h 14mMultiple Airlines
Deal found 5/15$630
Wed 9/2510:00 amSTL - LHR
2 stops27h 30mMultiple Airlines
Tue 10/16:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/16$642
Sun 9/2910:10 amSTL - LHR
2 stops16h 45mMultiple Airlines
Tue 10/156:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/16$666
Mon 9/3011:51 amSTL - LHR
2 stops23h 49mMultiple Airlines
Mon 10/76:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/15$672
Thu 10/177:48 pmSTL - LGW
1 stop32h 12mMultiple Airlines
Thu 10/2412:00 pmLGW - STL
1 stop32h 12mMultiple Airlines
Deal found 5/14$672

St. Louis to London flights leaving soon

Find last-minute flight options from St. Louis to London for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 16, 2024.
Have a look at some of the last-minute flights available departing from St. Louis to London. Tip: verify your flight details before completing your reservation.
Tue 5/2112:53 pmSTL - LGW
2 stops15h 07mDelta
Thu 5/3012:00 pmLGW - STL
2 stops17h 40mDelta
Deal found 5/16$724
Tue 5/2111:00 amSTL - LHR
1 stop13h 30mAir Canada
Thu 5/309:30 amLHR - STL
1 stop17h 35mAir Canada
Deal found 5/16$741
Tue 5/214:05 pmSTL - LHR
1 stop10h 30mAir Canada
Thu 5/309:30 amLHR - STL
1 stop17h 35mAir Canada
Deal found 5/15$746
Tue 5/219:50 amSTL - LHR
2 stops14h 40mAir Canada
Thu 5/302:05 pmLHR - STL
1 stop13h 00mAir Canada
Deal found 5/16$747
Tue 5/216:11 amSTL - LHR
1 stop19h 04mDelta
Tue 5/286:15 amLHR - STL
2 stops17h 07mDelta
Deal found 5/15$748
Tue 5/216:12 pmSTL - LHR
2 stops12h 03mDelta
Tue 5/286:15 amLHR - STL
2 stops17h 07mDelta
Deal found 5/15$752
Tue 5/2110:20 amSTL - LHR
2 stops15h 45mDelta
Thu 5/3011:30 amLHR - STL
2 stops16h 04mDelta
Deal found 5/15$753
Tue 5/215:55 amSTL - LHR
1 stop10h 15mAmerican Airlines
Tue 5/289:15 amLHR - STL
1 stop16h 15mAmerican Airlines
Deal found 5/15$754
Tue 5/215:55 amSTL - LHR
1 stop10h 15mBritish Airways
Mon 5/277:35 pmLHR - STL
2 stops31h 20mBritish Airways
Deal found 5/16$772

One-way flights to London from St. Louis

Search for one-way flight options from St. Louis to London. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 16, 2024.
Take a look at some of the one-way flights we've detected from St. Louis to London. Those needing a return flight from St. Louis to London can use the search form above.
Wed 7/107:33 pmSTL - LGW
1 stop32h 27mMultiple Airlines
Deal found 5/15$273
Thu 10/37:48 pmSTL - LGW
1 stop32h 12mMultiple Airlines
Deal found 5/15$305
Fri 9/206:42 pmSTL - LGW
1 stop33h 18mMultiple Airlines
Deal found 5/15$313
Fri 10/46:42 pmSTL - LGW
1 stop33h 18mMultiple Airlines
Deal found 5/15$314
Wed 7/108:02 pmSTL - LGW
2 stops31h 58mMultiple Airlines
Deal found 5/15$350
Tue 8/2010:34 amSTL - LTN
3 stops48h 06mMultiple Airlines
Deal found 5/15$369
Tue 8/208:00 amSTL - LGW
3 stops30h 10mMultiple Airlines
Deal found 5/15$383
Tue 8/208:00 amSTL - LHR
3 stops26h 25mMultiple Airlines
Deal found 5/15$384
Fri 8/236:42 pmSTL - LGW
1 stop33h 18mMultiple Airlines
Deal found 5/15$409

Find flights from St. Louis to London within your budget

Customize your flight search to find flights from St. Louis to London 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 2,644,845 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$535 - $749

Route

Depart

Return

Price

Lambert-St LouisLondon Gatwick

STL - LGW

STLLGW

Lambert-St Louis

Sat 9/14

1 stop16h 21m

London Gatwick

Tue 9/24

1 stop28h 46m

$535

Lambert-St LouisLondon Gatwick

STL - LGW

STLLGW

Lambert-St Louis

Wed 9/4

2 stops18h 33m

London Gatwick

Wed 9/18

2 stops16h 27m

$718

Lambert-St LouisLondon Gatwick

STL - LGW

STLLGW

Lambert-St Louis

Tue 9/17

2 stops13h 55m

London Gatwick

Tue 9/24

2 stops17h 35m

$721

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Fri 6/14

1 stop10h 12m

London Heathrow

Sun 6/23

1 stop14h 13m

$730

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Mon 9/23

1 stop30h 35m

London Heathrow

Thu 10/3

1 stop29h 30m

$733

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Tue 9/24

1 stop16h 00m

London Heathrow

Tue 10/1

1 stop17h 35m

$734

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Wed 10/9

1 stop19h 10m

London Heathrow

Wed 10/23

2 stops16h 36m

$742

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Mon 6/3

1 stop10h 15m

London Heathrow

Mon 6/10

2 stops27h 12m

$743

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Mon 9/30

1 stop14h 10m

London Heathrow

Wed 10/9

1 stop13h 31m

$749

Flights are sorted by cheapest first

Deals found on 5/15

When is the best time to book a flight from St. Louis to London?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to London. Price data was last updated on May 10, 2024.
The best time to book flights from St. Louis to London is 9 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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When is the cheapest time to fly from St. Louis to London?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to London. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to London flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to London by month

Plan your trip from St. Louis to London by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to London is currently $344 while a round-trip flight costs $712. Price data was last updated on May 12, 2024.

Currently, November is the cheapest month in which you can book a flight from St. Louis to London (average of $653). Flying from St. Louis to London in June is currently the most expensive (average of $1,150). 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.

January

$673

February

$662

March

$715

April

$692

May

$733

June

$1,150

July

$976

August

$775

September

$745

October

$708

November

$653

December

$672

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated May 16, 2024.
Read reviews from past customers who have flown Finnair, United Airlines and Air Canada from St. Louis to London. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,673 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,568 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Finnair
7.8
Good
1,376 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Virgin Atlantic
7.7
Good
735 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Austrian Airlines
7.7
Good
1,054 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to London. 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?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to London. You should not have trouble finding flights to London from Lambert-St Louis; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 11 airlines have flights from the St. Louis airport to London. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • Can I find flights from St. Louis to London for under $600 on Cheapflights?

    Yes, there are multiple flights from St. Louis to London for under $600. The cheapest flight booked recently is on Multiple Airlines for just $535, but on average you can expect to pay $679.

  • Are there last-minute flights available from St. Louis to London for under $800?

    There are currently 20+ open flights from St. Louis to London within the next 7 days for less than $800.

  • What are the cheapest airlines flying from St. Louis to London round-trip?

    According to our current data, American Airlines ($718), Virgin Atlantic ($721), and Finnair ($730) offers the cheapest pricing from St. Louis to London. These flights start at 23% lower than the current average price 3 months from now.

  • What are the most popular routes from St. Louis to London?

    The most popular flight routes from St. Louis to London are Lambert-St Louis - London Heathrow, Lambert-St Louis - London Gatwick and Lambert-St Louis - London City.

  • What are the most popular airlines that fly from St. Louis to London?

    When booking a flight from St. Louis to London, you may want to consider flying on American Airlines, Air Canada or Air France as they are the most popular for this route.

  • What does STL to LHR mean?

    Lambert-St Louis Airport is STL and London Heathrow Airport is LHR. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN) are other airports near this flight route and their unique identifiers/IATA codes.

  • Where are the most common layover locations when flying from St. Louis to London?

    Flights departing from St. Louis and landing in London layover in Chicago most frequently.

  • What are some popular things to do or see while on a layover in Chicago?

    Chicago travelers tend to visit Grant Park, Magnificent Mile, and Wrigley Field more than anywhere else. Grant Park, Magnificent Mile, and Wrigley Field are located about 16.2 mi, 15.5 mi, and 13.0 mi, respectively from Chicago O'Hare Intl. Travelers can rent a car at Chicago O'Hare Intl for an average daily rate of $55 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for St. Louis to London flights?

    Flights departing from St. Louis and landing in London layover in Detroit least frequently.

  • Can I find deals for flights from St. Louis to London that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to London flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to London with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to London flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to London that allow pets onboard?

    Many airlines flying from St. Louis to London offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to London?

    Yes, you can often find last-minute deals on St. Louis to London flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to London flight deals updated?

    The St. Louis to London flight deals you see on this page were last updated on 5/16.

See more FAQs

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Alternative routes for St. Louis to London
See prices for flight routes from nearby airports that may be better suited for you.

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Top 10 airlines flying from St. Louis to London

Discover the top 10 airlines that operate flights from St. Louis to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$587Average$863FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest$620Average$781FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest$635Average$1,044FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest$643Average$840FlexibilityNo cancel feeOn-time76%
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Can Cheapflights find flights from St. Louis to London with no change fees?

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