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Cheap flights from St. Louis (STL) to London (LON) from $205

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 9/11. 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 20 — May 271
From?
To?
Mon 5/20
Mon 5/27
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 15, 2024.

Popular in

June

Cheapest in

February

Round-trip from

$643

One-way from

$205
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 Air Canada flights from St. Louis to London

Explore cheap flight options specifically provided by Air Canada 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 15, 2024.
Peruse some of the lowest-priced Air Canada flights we've found from St. Louis to London. Deals update often to give you more flight options matching your criteria
Tue 10/812:00 pmSTL - LHR
1 stop12h 30mAir Canada
Wed 10/239:30 amLHR - STL
2 stops16h 30mAir Canada
Deal found 5/14$724
Tue 10/810:10 amSTL - LHR
1 stop19h 40mAir Canada
Wed 10/239:30 amLHR - STL
1 stop17h 35mAir Canada
Deal found 5/14$729
Wed 9/2512:00 pmSTL - LHR
1 stop12h 30mAir Canada
Tue 10/89:30 amLHR - STL
2 stops16h 30mAir Canada
Deal found 5/14$740
Wed 8/712:00 pmSTL - LHR
1 stop16h 00mAir Canada
Fri 8/239:30 amLHR - STL
2 stops16h 31mAir Canada
Deal found 5/13$746
Wed 8/710:10 amSTL - LHR
2 stops14h 20mAir Canada
Fri 8/239:30 amLHR - STL
2 stops16h 31mAir Canada
Deal found 5/13$751
Fri 9/204:05 pmSTL - LHR
1 stop11h 30mAir Canada
Fri 9/278:30 amLHR - STL
1 stop12h 50mAir Canada
Deal found 5/15$796
Tue 7/94:05 pmSTL - LHR
1 stop10h 30mAir Canada
Thu 7/188:30 amLHR - STL
1 stop17h 31mAir Canada
Deal found 5/14$825
Wed 8/2812:00 pmSTL - LHR
1 stop12h 30mAir Canada
Thu 9/1212:05 pmLHR - STL
1 stop15h 00mAir Canada
Deal found 5/14$882
Wed 5/2211:00 amSTL - LHR
1 stop13h 30mAir Canada
Thu 5/302:05 pmLHR - STL
1 stop13h 00mAir Canada
Deal found 5/14$885

Cheap Virgin Atlantic flights from St. Louis to London

Explore cheap flight options specifically provided by Virgin Atlantic 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 15, 2024.
To aid your search, here are some of the cheapest Virgin Atlantic 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.
Wed 6/126:06 amSTL - LHR
1 stop19h 09mVirgin Atlantic
Wed 6/1912:45 pmLHR - STL
1 stop12h 34mVirgin Atlantic
Deal found 5/13$754
Tue 6/1110:05 amSTL - LHR
1 stop15h 10mVirgin Atlantic
Tue 6/189:20 amLHR - STL
1 stop13h 41mVirgin Atlantic
Deal found 5/14$755
Thu 10/172:05 pmSTL - LGW
2 stops13h 55mVirgin Atlantic
Thu 10/2412:00 pmLGW - STL
2 stops17h 35mVirgin Atlantic
Deal found 5/14$767
Sun 7/1412:43 pmSTL - LHR
1 stop11h 42mVirgin Atlantic
Sun 7/2111:30 amLHR - STL
2 stops16h 37mVirgin Atlantic
Deal found 5/14$871
Sun 5/2612:00 pmSTL - LHR
1 stop12h 45mVirgin Atlantic
Mon 6/37:45 pmLHR - STL
2 stops27h 01mVirgin Atlantic
Deal found 5/14$911
Sun 5/1912:53 pmSTL - LGW
2 stops15h 07mVirgin Atlantic
Sun 5/2612:00 pmLGW - STL
2 stops15h 34mVirgin Atlantic
Deal found 5/15$1,281

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 15, 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 5/14$723
Tue 5/2112:53 pmSTL - LGW
2 stops15h 07mDelta
Thu 5/3012:00 pmLGW - STL
2 stops15h 34mDelta
Deal found 5/15$724
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
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
Tue 5/219:50 amSTL - LHR
1 stop14h 45mAir Canada
Thu 5/309:30 amLHR - STL
1 stop17h 35mAir Canada
Deal found 5/14$746
Wed 6/126:30 amSTL - LHR
1 stop18h 15mDelta
Wed 6/196:15 amLHR - STL
2 stops17h 05mDelta
Deal found 5/15$748
Mon 6/38:05 amSTL - LHR
1 stop15h 50mUnited Airlines
Fri 6/146:30 amLHR - STL
1 stop13h 00mUnited Airlines
Deal found 5/14$749
Sat 6/2211:34 amSTL - LGW
1 stop16h 26mMultiple Airlines
Sat 6/292:00 pmLGW - STL
1 stop34h 05mMultiple Airlines
Deal found 5/15$750

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 15, 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 5/14$517
Tue 9/102:35 pmSTL - LGW
1 stop13h 25mMultiple Airlines
Sun 9/1512:00 pmLGW - STL
1 stop32h 12mMultiple Airlines
Deal found 5/13$543
Thu 9/57:48 pmSTL - LGW
1 stop32h 12mMultiple Airlines
Mon 9/92:00 pmLGW - STL
1 stop29h 37mMultiple Airlines
Deal found 5/14$569
Wed 8/146:18 pmSTL - LHR
1 stop11h 57mFinnair
Mon 8/1910:30 amLHR - STL
1 stop14h 31mFinnair
Deal found 5/14$605
Sun 9/87:48 pmSTL - LGW
1 stop32h 12mMultiple Airlines
Mon 9/162:00 pmLGW - STL
1 stop29h 37mMultiple Airlines
Deal found 5/14$607
Wed 9/254:31 pmSTL - LGW
1 stop35h 29mMultiple Airlines
Wed 10/22:00 pmLGW - STL
1 stop14h 14mMultiple Airlines
Deal found 5/13$614
Tue 10/82:35 pmSTL - LGW
1 stop13h 25mMultiple Airlines
Wed 10/232:00 pmLGW - STL
1 stop34h 29mMultiple Airlines
Deal found 5/14$628
Tue 10/82:05 pmSTL - LHR
2 stops19h 55mMultiple Airlines
Wed 10/236:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/14$635
Wed 9/257:10 amSTL - LHR
2 stops26h 50mMultiple Airlines
Wed 10/26:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/13$641

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 15, 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 5/14$723
Sun 5/1912:00 pmSTL - LGW
2 stops16h 00mDelta
Fri 6/712:00 pmLGW - STL
2 stops17h 43mDelta
Deal found 5/15$724
Tue 5/219:50 amSTL - LHR
1 stop14h 45mAir Canada
Thu 5/309:30 amLHR - STL
1 stop17h 35mAir Canada
Deal found 5/14$746
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
Mon 5/203:15 pmSTL - LHR
1 stop11h 15mMultiple Airlines
Mon 5/279:30 amLHR - STL
1 stop17h 35mMultiple Airlines
Deal found 5/14$795
Mon 5/204:51 pmSTL - LHR
1 stop13h 29mUnited Airlines
Mon 5/276:50 amLHR - STL
2 stops14h 51mUnited Airlines
Deal found 5/14$796

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 15, 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 9/114:31 pmSTL - LGW
1 stop35h 29mMultiple Airlines
Deal found 5/14$205
Wed 9/184:31 pmSTL - LGW
1 stop35h 29mMultiple Airlines
Deal found 5/14$217
Wed 9/188:00 pmSTL - LGW
2 stops32h 00mMultiple Airlines
Deal found 5/14$299
Wed 9/118:00 pmSTL - LGW
2 stops32h 00mMultiple Airlines
Deal found 5/14$302
Thu 10/37:48 pmSTL - LGW
1 stop32h 12mMultiple Airlines
Deal found 5/15$305
Thu 6/208:12 pmSTL - LGW
1 stop31h 48mMultiple Airlines
Deal found 5/14$310
Fri 10/46:42 pmSTL - LGW
1 stop33h 18mMultiple Airlines
Deal found 5/15$314
Sun 6/166:55 pmSTL - LGW
1 stop33h 05mMultiple Airlines
Deal found 5/14$393
Tue 6/113:23 pmSTL - LGW
3 stops59h 37mMultiple Airlines
Deal found 5/14$400

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 15, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$517 - $779

Route

Depart

Return

Price

Lambert-St LouisLondon Gatwick

STL - LGW

STLLGW

Lambert-St Louis

Tue 9/17

1 stop13h 25m

London Gatwick

Tue 9/24

1 stop28h 46m

$517

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Wed 8/14

1 stop11h 57m

London Heathrow

Mon 8/19

1 stop14h 31m

$605

Lambert-St LouisLondon Gatwick

STL - LGW

STLLGW

Lambert-St Louis

Wed 9/4

2 stops16h 09m

London Gatwick

Wed 9/18

2 stops17h 35m

$720

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Tue 10/8

1 stop12h 30m

London Heathrow

Wed 10/23

2 stops16h 30m

$724

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Tue 10/1

1 stop23h 15m

London Heathrow

Wed 10/16

1 stop33h 15m

$733

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Sun 9/8

1 stop12h 15m

London Heathrow

Mon 9/16

2 stops27h 04m

$735

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

Wed 6/12

1 stop19h 09m

London Heathrow

Wed 6/19

1 stop12h 34m

$754

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Wed 9/25

1 stop13h 35m

London Heathrow

Tue 10/1

1 stop25h 00m

$779

Flights are sorted by cheapest first

Deals found on 5/14

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.
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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 $305 while a round-trip flight costs $701. 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 15, 2024.
Read reviews from past customers who have flown Air Canada, Virgin Atlantic and British Airways 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
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

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
10,691 reviews
Delta
8.0
Very good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

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
1,378 reviews
Delta
8.0
Very good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

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
736 reviews
Delta
8.0
Very good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

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.

Turkish Airlines
7.4
Good
3,708 reviews
Delta
8.0
Very good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

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.

United Airlines
7.4
Good
10,946 reviews
Delta
8.0
Very good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

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 $517, but on average you can expect to pay $643.

  • 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, Finnair ($605), Delta ($720), and Air Canada ($724) offers the cheapest pricing from St. Louis to London. These flights start at 35% 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 5/15.

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 15, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$587Average$863FlexibilityNo cancel feeOn-time69%
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IberiaCheapest$620Average$781FlexibilityNo cancel feeOn-time77%
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American AirlinesCheapest$635Average$1,044FlexibilityNo cancel feeOn-time71%
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FinnairCheapest$643Average$840FlexibilityNo cancel feeOn-time76%
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British AirwaysCheapest$652Average$869FlexibilityNo cancel feeOn-time70%
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Virgin AtlanticCheapest$654Average$793FlexibilityNo cancel feeOn-time72%
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LufthansaCheapest$656Average$1,259FlexibilityNo cancel feeOn-time76%
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DeltaCheapest$660Average$858FlexibilityNo cancel feeOn-timeN/A
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KLMCheapest$688Average$885FlexibilityNo cancel feeOn-time75%
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Air CanadaCheapest$699Average$1,093FlexibilityNo cancel feeOn-time67%
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Can Cheapflights find flights from St. Louis to London with no change fees?

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Can Cheapflights notify me if prices for flights from St. Louis to London become cheaper?

Yes, Cheapflights offers price alerts on St. Louis to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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