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Cheap flights from London to St. Louis from £259

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. Click the price to replicate the search for this deal.
LON — STL
10 May — 17 May1
1 adult
Fri 10/5
Fri 17/5

The best prices from London to Lambert-St Louis are usually found in February or January, booked 27 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from London to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 5 May 2024.

Popular in

August

Cheapest in

February

Round-trip from

£534

One-way from

£259
High demand for flights, 23% potential price rise
Best time to find cheap flights, 14% potential price drop
From London (LON) to Lambert-St Louis
One-way flight from London (LON) to Lambert-St Louis

What is the cheapest day to fly round-trip from London to St. Louis?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 17%.

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

Users have found that booking a flight from London to St. Louis at least 28 days early can save you up to 3% on average compared to booking a flight this week. If booking 28 days before your flight isn’t an option for you, users have found flights from London to St. Louis for as little as £504 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £582 for flights departing within the next 3 days.

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

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, February can be a great choice for travel to St. Louis. Flights to St. Louis from London in February are about £593 on average during February, but can be found for as low as £423.

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

It’s typically best to fly out from London to St. Louis in the morning. Doing so could potentially save you 9% on the flight price compared to flying in the evening, which is usually more expensive.

Cheap Finnair flights from London to St. Louis

Explore cheap flight options specifically provided by Finnair for the route between London and St. Louis. 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 892,239 searches. Data last updated 5 May 2024.
Take a look at some of the lowest-priced Finnair flights heading from London to St. Louis. Make sure to double check the flight details before booking.
Mon 16/914:10LHR - STL
1 stop14h 50mFinnair
Mon 30/914:38STL - LHR
1 stop12h 27mFinnair
Deal found 4/5£509
Thu 5/909:35LHR - STL
1 stop14h 53mFinnair
Thu 26/917:30STL - LHR
1 stop16h 35mFinnair
Deal found 4/5£553
Mon 3/613:00LHR - STL
1 stop13h 55mFinnair
Tue 11/606:29STL - LHR
1 stop24h 21mFinnair
Deal found 4/5£557
Thu 26/910:30LHR - STL
1 stop18h 30mFinnair
Sun 29/918:58STL - LHR
1 stop30h 32mFinnair
Deal found 4/5£559
Sat 1/611:40LHR - STL
1 stop17h 37mFinnair
Mon 10/609:23STL - LHR
1 stop17h 42mFinnair
Deal found 4/5£574
Wed 15/512:30LHR - STL
1 stop16h 49mFinnair
Fri 24/516:20STL - LHR
1 stop13h 50mFinnair
Deal found 4/5£582
Mon 20/514:10LHR - STL
1 stop15h 09mFinnair
Thu 23/516:20STL - LHR
1 stop13h 50mFinnair
Deal found 4/5£595
Tue 1/1014:10LHR - STL
1 stop14h 50mFinnair
Thu 10/1014:38STL - LHR
1 stop10h 52mFinnair
Deal found 4/5£599
Mon 7/1014:10LHR - STL
1 stop14h 50mFinnair
Sun 20/1019:00STL - LHR
1 stop31h 05mFinnair
Deal found 4/5£602

Cheap Delta flights from London to St. Louis

Explore cheap flight options specifically provided by Delta for the route between London and St. Louis. 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 892,239 searches. Data last updated 5 May 2024.
Some of the lowest-priced Delta flights we've found at this time heading from London to St. Louis. Check back soon if you're not seeing flights that suit your needs.
Mon 16/908:40LHR - STL
2 stops17h 51mDelta
Mon 30/911:51STL - LHR
2 stops16h 24mDelta
Deal found 4/5£694
Wed 15/509:55LHR - STL
2 stops17h 39mDelta
Fri 24/518:12STL - LHR
2 stops12h 03mDelta
Deal found 4/5£784
Tue 1/1012:00LGW - STL
2 stops17h 35mDelta
Thu 10/1011:51STL - LGW
2 stops16h 09mDelta
Deal found 4/5£799
Mon 27/511:45LHR - STL
2 stops16h 07mDelta
Wed 5/618:12STL - LHR
2 stops12h 03mDelta
Deal found 4/5£814
Mon 14/1012:55LHR - STL
2 stops16h 40mDelta
Thu 31/1011:51STL - LHR
1 stop14h 24mDelta
Deal found 4/5£828
Mon 7/1012:00LGW - STL
2 stops14h 31mDelta
Sun 20/1011:51STL - LGW
2 stops16h 09mDelta
Deal found 4/5£830
Thu 9/512:00LGW - STL
2 stops17h 40mDelta
Sat 18/510:10STL - LGW
2 stops17h 50mDelta
Deal found 4/5£1,202

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

Find cheap flight options from London to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 892,239 searches. Prices were last updated on 5 May 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. Check back in a little while for more flight options.
Wed 15/514:00LGW - STL
1 stop34h 40mMultiple Airlines
Sat 18/511:39STL - LGW
1 stop16h 21mMultiple Airlines
Deal found 4/5£535
Mon 3/613:00LHR - STL
1 stop13h 55mFinnair
Tue 11/606:29STL - LHR
1 stop24h 21mFinnair
Deal found 4/5£557
Sat 1/611:40LHR - STL
1 stop17h 37mFinnair
Mon 10/609:23STL - LHR
1 stop17h 42mFinnair
Deal found 4/5£574
Wed 15/512:30LHR - STL
1 stop16h 49mFinnair
Fri 24/516:20STL - LHR
1 stop13h 50mFinnair
Deal found 4/5£582
Mon 20/514:10LHR - STL
1 stop15h 09mFinnair
Thu 23/516:20STL - LHR
1 stop13h 50mFinnair
Deal found 4/5£595
Sat 15/614:00LGW - STL
1 stop23h 07mMultiple Airlines
Sat 22/615:08STL - LGW
2 stops36h 52mMultiple Airlines
Deal found 4/5£602
Sat 1/611:15LHR - STL
1 stop18h 02mFinnair
Sat 8/617:38STL - LHR
1 stop12h 32mFinnair
Deal found 4/5£605
Sat 1/614:00LGW - STL
1 stop23h 08mMultiple Airlines
Mon 10/619:29STL - LGW
2 stops33h 16mMultiple Airlines
Deal found 4/5£699
Sat 15/614:00LGW - STL
1 stop34h 05mMultiple Airlines
Sat 22/611:34STL - LGW
1 stop16h 26mMultiple Airlines
Deal found 4/5£708

London to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between London and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 892,239 searches. Data last updated 5 May 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. Check back in a little while for more flight options.
Mon 16/914:10LHR - STL
1 stop14h 50mFinnair
Mon 30/914:38STL - LHR
1 stop12h 27mFinnair
Deal found 4/5£509
Wed 15/514:00LGW - STL
1 stop34h 40mMultiple Airlines
Sat 18/511:39STL - LGW
1 stop16h 21mMultiple Airlines
Deal found 4/5£535
Tue 3/1211:45LHR - STL
1 stop17h 26mFinnair
Fri 13/1209:40STL - LHR
1 stop15h 10mFinnair
Deal found 4/5£540
Sat 9/1114:15LHR - STL
1 stop14h 56mFinnair
Sun 17/1114:54STL - LHR
1 stop25h 46mFinnair
Deal found 4/5£540
Tue 1/1012:00LGW - STL
1 stop28h 46mMultiple Airlines
Thu 10/1019:48STL - LGW
1 stop32h 12mMultiple Airlines
Deal found 4/5£551
Thu 5/909:35LHR - STL
1 stop14h 53mFinnair
Thu 26/917:30STL - LHR
1 stop16h 35mFinnair
Deal found 4/5£553
Mon 3/613:00LHR - STL
1 stop13h 55mFinnair
Tue 11/606:29STL - LHR
1 stop24h 21mFinnair
Deal found 4/5£557
Thu 26/910:30LHR - STL
1 stop18h 30mFinnair
Sun 29/918:58STL - LHR
1 stop30h 32mFinnair
Deal found 4/5£559
Fri 1/1112:35LHR - STL
1 stop15h 36mFinnair
Sat 9/1114:43STL - LHR
1 stop12h 32mFinnair
Deal found 4/5£570

London to St. Louis flights leaving soon

Find last-minute flight options from London to St. Louis 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 892,239 searches. Data last updated 5 May 2024.
Check out these flights departing soon from London to St. Louis. Users should examine the flight details to ensure there are no surprises.
Thu 9/510:05LHR - STL
1 stop15h 23mFinnair
Sat 18/517:08STL - LHR
1 stop13h 37mFinnair
Deal found 4/5£826
Thu 9/518:10LHR - STL
2 stops33h 37mFinnair
Sat 18/513:01STL - LHR
1 stop17h 14mFinnair
Deal found 4/5£940
Thu 9/516:10LHR - STL
2 stops35h 37mFinnair
Sat 18/517:08STL - LHR
2 stops35h 02mFinnair
Deal found 4/5£1,184
Thu 9/512:00LGW - STL
2 stops17h 40mDelta
Sat 18/510:10STL - LGW
2 stops17h 50mDelta
Deal found 4/5£1,202
Thu 9/519:30LHR - STL
2 stops27h 44mAustrian Airlines
Sat 18/511:10STL - LHR
1 stop18h 35mAustrian Airlines
Deal found 4/5£1,204
Thu 9/514:05LHR - STL
1 stop13h 00mAir Canada
Sat 18/511:00STL - LHR
1 stop13h 30mAir Canada
Deal found 4/5£1,209
Thu 9/506:40LHR - STL
3 stops23h 00mMultiple Airlines
Sat 18/507:10STL - LHR
3 stops26h 50mMultiple Airlines
Deal found 4/5£1,788
Wed 15/509:05LCY - STL
2 stops18h 42mMultiple Airlines
Fri 24/510:20STL - LCY
2 stops19h 20mMultiple Airlines
Deal found 4/5£1,823

One-way flights to St. Louis from London

Search for one-way flight options from London to St. Louis. 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 892,239 searches. Data last updated 5 May 2024.
Users in need of a one-way flight from London to St. Louis can choose from these deals. Those seeking round-trip flights from London to St. Louis should utilise the search form at the top of the page.
Sun 15/912:00LGW - STL
1 stop28h 18mMultiple Airlines
Deal found 4/5£259
Wed 15/514:00LGW - STL
1 stop34h 40mMultiple Airlines
Deal found 4/5£273
Sun 15/919:10LTN - STL
3 stops50h 31mMultiple Airlines
Deal found 4/5£283
Sun 15/919:15LGW - STL
3 stops50h 26mMultiple Airlines
Deal found 4/5£284
Sat 18/520:50LHR - STL
3 stops43h 23mMultiple Airlines
Deal found 4/5£292
Sat 18/519:10LTN - STL
3 stops50h 04mMultiple Airlines
Deal found 4/5£299
Wed 4/914:00LGW - STL
1 stop14h 14mMultiple Airlines
Deal found 3/5£301
Sun 15/914:00LGW - STL
2 stops26h 31mMultiple Airlines
Deal found 4/5£307
Sat 18/514:00LGW - STL
1 stop34h 40mMultiple Airlines
Deal found 4/5£320

Find flights from London to St. Louis within your budget

Customise your flight search to find flights from London 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 892,239 searches. Data last updated 5 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£509 - £908

Route

Depart

Return

Price

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 16/9

1 stop14h 50m

Lambert-St Louis

Mon 30/9

1 stop12h 27m

£509

London GatwickLambert-St Louis

LGW - STL

LGWSTL

London Gatwick

Wed 15/5

1 stop34h 40m

Lambert-St Louis

Sat 18/5

1 stop16h 21m

£535

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 16/9

2 stops17h 51m

Lambert-St Louis

Mon 30/9

2 stops16h 24m

£694

London CityLambert-St Louis

LCY - STL

LCYSTL

London City

Mon 16/9

2 stops26h 39m

Lambert-St Louis

Mon 30/9

2 stops16h 51m

£763

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 15/5

2 stops14h 56m

Lambert-St Louis

Fri 24/5

1 stop30h 24m

£773

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 15/5

1 stop29h 26m

Lambert-St Louis

Fri 24/5

1 stop13h 50m

£797

London CityLambert-St Louis

LCY - STL

LCYSTL

London City

Sat 1/6

2 stops18h 54m

Lambert-St Louis

Mon 10/6

2 stops17h 15m

£866

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sat 15/6

1 stop13h 37m

Lambert-St Louis

Sat 22/6

1 stop10h 10m

£888

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sat 15/6

1 stop12h 51m

Lambert-St Louis

Sat 22/6

2 stops16h 20m

£908

Flights are sorted by cheapest first

Deals found on 4/5

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

Use this chart to determine the optimal time to book a return flight from London to St. Louis. Price data was last updated on 28 January 2024.
To ensure you get the cheapest price possible for a flight from London to St. Louis, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

When is the cheapest time to fly from London to St. Louis?

Use this chart to determine the cheapest time to fly return from London to St. Louis. Price data was last updated on 28 April 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London to St. Louis flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to St. Louis by month

Plan your trip from London to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from London to St. Louis is currently £291 while a return flight costs £748. Price data was last updated on 28 April 2024.

Currently, November is the cheapest month in which you can book a flight from London to St. Louis (average of £670). Flying from London to St. Louis in August is currently the most expensive (average of £838). 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

£577

February

£551

March

£563

April

£572

May

£593

June

£646

July

£615

August

£668

September

£556

October

£551

November

£534

December

£549

Temperature and rainfall in St. Louis by month

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

STL

Temperature

0 - 27 °C

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 5 May 2024.
Get a feel of what it's like to fly with Finnair, Delta and Lufthansa from London to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
10,826 reviews

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

8.1
Very Good
10,826 reviews
8.1
Very Good
10,826 reviews

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.9
Good
1,603 reviews
8.1
Very Good
10,826 reviews

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.8
Good
1,379 reviews
8.1
Very Good
10,826 reviews

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.7
Good
740 reviews
8.1
Very Good
10,826 reviews

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.7
Good
1,075 reviews
8.1
Very Good
10,826 reviews

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from London 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?

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from London to St. Louis. You should not have trouble finding flights to Lambert-St Louis from London; the airport handles an average of 0 inbound flights from London per day. You should also have plenty of airline options to choose from since 8 airlines have flights to the St. Louis airport from London. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

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

    Yes, there are multiple flights from London to St. Louis for under £600. The cheapest flight booked recently is on Finnair for just £509, but on average you can expect to pay £610.

  • Are there last-minute flights available from London to St. Louis for under £900?

    There are currently 8+ open flights from London to St. Louis within the next 7 days for less than £900.

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

    Our cheapest airline available from London to St. Louis is Finnair. Our recent data shows that you can find tickets from as low as £509 on this airline. Additional options worth looking into are Delta and Lufthansa, starting at £694 and £763 round-trip. These flights start at 14% lower than the current average price 3 months from now.

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

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

  • What does LHR to STL mean?

    London Heathrow Airport is LHR and Lambert-St Louis Airport is STL. 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.

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

    The amount of baggage you can bring on your London to St. Louis 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 London to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter London to St. Louis 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 London to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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.

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

    Many airlines flying from London to St. Louis 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 London to St. Louis?

    Yes, you can often find last-minute deals on London to St. Louis 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 London to St. Louis flight deals updated?

    The London to St. Louis flight deals you see on this page were last updated on 4/5.

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 from London to St. Louis on these airlines
Choose from the following airlines for your flight from London to St. Louis. Flights are based on user searches made on Cheapflights and were last updated on 5 May 2024.

Top 8 airlines flying from London to St. Louis

Discover the top 8 airlines that operate flights from London to St. Louis. 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 892,239 searches. Data last updated 5 May 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£471Average£814FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£471Average£822FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£476Average£628FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£478Average£847FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£533Average£842FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
American AirlinesCheapest£629Average£961FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest£645Average£853FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£772Average£932FlexibilityNo cancel feeOn-time75%
Search KLM flights

Search flights from London to St. Louis by cabin class

Find flights from London to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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 London to St. Louis?

Cheapflights helps you search for flights from London to St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to St. Louis?

Millions of users choose and trust Cheapflights to book the best flight deals from London 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 London to St. Louis with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to St. Louis flexibly with Cheapflights today.

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

Not ready to book yet? You can track prices for flights from London to St. Louis on Cheapflights with our Price Alert feature and get notified when better prices are available.

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