HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from London (LON) to St. Louis (STL) from $274

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 6/5. 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
jun. 2 — jun. 91
From?
To?
dom. 6/2
dom. 6/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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 mayo 28, 2024.

Popular in

August

Cheapest in

November

Round-trip from

$319

One-way from

$274
High demand for flights, 25% potential price rise
Search Deals
Best time to find cheap flights, 18% potential price drop
Search Deals
From London (LON) to Lambert-St Louis
Search Deals
One-way flight from London (LON) to Lambert-St Louis
Search Deals

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

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 31% on the overall cost on flights from London to St. Louis.

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

Find a great deal and save up to 14% by booking at least 28 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London to St. Louis within the next two weeks, with the cheapest ticket starting at $661.

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

The best pricing can be found in the month of November. Prices to St. Louis from London average $774. You can even find prices in November for less than $774, as users have found deals to St. Louis from as low as $550. The month of August appears to be one of the more expensive times to travel to St. Louis from London. Flying in the targeted month can save you up to 32%.

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

A simple way to save on the total cost of your ticket is to fly from London to St. Louis in the afternoon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight at noon.

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 2,740,132 searches. Data last updated mayo 28, 2024.
Peruse some of the lowest-priced Finnair flights we've found from London to St. Louis. Deals update often to give you more flight options matching your criteria
mar. 9/172:10 pmLHR - STL
1 stop15h 11mFinnair
mié. 10/29:05 amSTL - LHR
1 stop16h 25mFinnair
Deal found 5/27$650
jue. 9/2611:40 amLHR - STL
1 stop17h 20mFinnair
dom. 9/295:35 pmSTL - LHR
1 stop31h 55mFinnair
Deal found 5/27$689
mar. 6/1110:10 amLHR - STL
1 stop18h 48mFinnair
dom. 6/165:38 pmSTL - LHR
1 stop32h 02mFinnair
Deal found 5/27$720
mié. 6/2611:15 amLHR - STL
1 stop17h 43mFinnair
mié. 7/39:23 amSTL - LHR
1 stop17h 42mFinnair
Deal found 5/27$724
jue. 9/511:40 amLHR - STL
1 stop17h 20mFinnair
jue. 9/2612:48 pmSTL - LHR
1 stop14h 17mFinnair
Deal found 5/27$725
lun. 6/1011:40 amLHR - STL
1 stop17h 18mFinnair
mar. 6/183:27 pmSTL - LHR
1 stop11h 38mFinnair
Deal found 5/27$727
lun. 6/1011:15 amLHR - STL
1 stop17h 43mFinnair
dom. 6/165:38 pmSTL - LHR
1 stop32h 02mFinnair
Deal found 5/27$759
jue. 6/2711:15 amLHR - STL
1 stop17h 43mFinnair
jue. 7/113:18 pmSTL - LHR
1 stop11h 47mFinnair
Deal found 5/27$760
vie. 6/1411:40 amLHR - STL
1 stop17h 18mFinnair
mié. 6/263:27 pmSTL - LHR
1 stop14h 43mFinnair
Deal found 5/27$762

Cheap British Airways flights from London to St. Louis

Explore cheap flight options specifically provided by British Airways 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 2,740,132 searches. Data last updated mayo 28, 2024.
Some of the lowest-priced British Airways flights we've found at this time heading from London to St. Louis. Deals are refreshing constantly so come back soon for more options.
jue. 7/46:10 amLHR - STL
2 stops17h 50mBritish Airways
jue. 7/186:04 amSTL - LHR
1 stop10h 06mBritish Airways
Deal found 5/27$1,190
jue. 7/46:10 amLHR - STL
2 stops17h 50mBritish Airways
lun. 7/86:04 amSTL - LHR
1 stop10h 06mBritish Airways
Deal found 5/27$1,221
jue. 7/46:10 amLHR - STL
2 stops17h 50mBritish Airways
vie. 7/126:04 amSTL - LHR
1 stop10h 06mBritish Airways
Deal found 5/27$1,260
sáb. 7/68:10 amLHR - STL
1 stop12h 16mBritish Airways
dom. 7/146:04 amSTL - LHR
1 stop10h 06mBritish Airways
Deal found 5/27$1,280
lun. 6/38:30 amLCY - STL
2 stops18h 25mBritish Airways
mar. 12/1011:57 amSTL - LCY
2 stops16h 53mBritish Airways
Deal found 5/27$1,632
lun. 6/38:30 amLCY - STL
2 stops18h 25mBritish Airways
mar. 6/1112:44 pmSTL - LCY
2 stops18h 56mBritish Airways
Deal found 5/27$1,646
lun. 6/38:30 amLCY - STL
2 stops18h 25mBritish Airways
mar. 6/1112:44 pmSTL - LCY
2 stops21h 41mBritish Airways
Deal found 5/28$1,769

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 2,740,132 searches. Prices were last updated on mayo 28, 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. More deals are always being added, so be sure to check back regularly.
mar. 6/1110:10 amLHR - STL
1 stop18h 48mFinnair
dom. 6/165:38 pmSTL - LHR
1 stop32h 02mFinnair
Deal found 5/27$720
mié. 6/2611:15 amLHR - STL
1 stop17h 43mFinnair
mié. 7/39:23 amSTL - LHR
1 stop17h 42mFinnair
Deal found 5/27$724
lun. 6/1011:40 amLHR - STL
1 stop17h 18mFinnair
mar. 6/183:27 pmSTL - LHR
1 stop11h 38mFinnair
Deal found 5/27$727
jue. 6/2010:40 amLGW - STL
1 stop14h 42mMultiple Airlines
mié. 6/268:16 amSTL - LGW
1 stop16h 19mMultiple Airlines
Deal found 5/27$742
lun. 6/1011:15 amLHR - STL
1 stop17h 43mFinnair
dom. 6/165:38 pmSTL - LHR
1 stop32h 02mFinnair
Deal found 5/27$759
jue. 6/2711:15 amLHR - STL
1 stop17h 43mFinnair
jue. 7/113:18 pmSTL - LHR
1 stop11h 47mFinnair
Deal found 5/27$760
vie. 6/1411:40 amLHR - STL
1 stop17h 18mFinnair
mié. 6/263:27 pmSTL - LHR
1 stop14h 43mFinnair
Deal found 5/27$762
mar. 6/1110:10 amLHR - STL
1 stop18h 48mFinnair
lun. 6/177:00 amSTL - LHR
1 stop18h 40mFinnair
Deal found 5/27$765
lun. 6/32:00 pmLGW - STL
1 stop23h 08mMultiple Airlines
mar. 12/106:42 pmSTL - LGW
2 stops34h 13mMultiple Airlines
Deal found 5/27$770

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 2,740,132 searches. Data last updated mayo 28, 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. More deals are always being added, so be sure to check back regularly.
mar. 9/172:10 pmLHR - STL
1 stop15h 11mFinnair
mié. 10/29:05 amSTL - LHR
1 stop16h 25mFinnair
Deal found 5/27$650
jue. 9/2611:40 amLHR - STL
1 stop17h 20mFinnair
dom. 9/295:35 pmSTL - LHR
1 stop31h 55mFinnair
Deal found 5/27$689
lun. 7/12:00 pmLGW - STL
1 stop24h 25mMultiple Airlines
mar. 7/1611:26 amSTL - LGW
1 stop16h 34mMultiple Airlines
Deal found 5/27$702
lun. 7/12:00 pmLGW - STL
1 stop26h 57mMultiple Airlines
jue. 7/118:49 pmSTL - LGW
1 stop31h 11mMultiple Airlines
Deal found 5/27$713
lun. 7/12:00 pmLGW - STL
1 stop26h 57mMultiple Airlines
jue. 7/118:49 pmSTL - LGW
1 stop31h 11mMultiple Airlines
Deal found 5/28$714
lun. 7/12:00 pmLGW - STL
1 stop24h 25mMultiple Airlines
sáb. 7/2011:34 amSTL - LGW
1 stop16h 26mMultiple Airlines
Deal found 5/27$719
mar. 6/1110:10 amLHR - STL
1 stop18h 48mFinnair
dom. 6/165:38 pmSTL - LHR
1 stop32h 02mFinnair
Deal found 5/27$720
mié. 6/2611:15 amLHR - STL
1 stop17h 43mFinnair
mié. 7/39:23 amSTL - LHR
1 stop17h 42mFinnair
Deal found 5/27$724
jue. 9/511:40 amLHR - STL
1 stop17h 20mFinnair
jue. 9/2612:48 pmSTL - LHR
1 stop14h 17mFinnair
Deal found 5/27$725

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 2,740,132 searches. Data last updated mayo 28, 2024.
Check out these flights departing soon from London to St. Louis. Users should be sure to double check the price, date, and time of their last-minute flight.
lun. 6/32:00 pmLGW - STL
1 stop23h 08mMultiple Airlines
mar. 12/106:42 pmSTL - LGW
2 stops34h 13mMultiple Airlines
Deal found 5/27$770
lun. 6/32:10 pmLHR - STL
1 stop15h 09mFinnair
mar. 6/115:38 pmSTL - LHR
1 stop12h 32mFinnair
Deal found 5/27$825
lun. 6/32:10 pmLHR - STL
1 stop15h 09mFinnair
mar. 12/109:40 amSTL - LHR
1 stop15h 10mFinnair
Deal found 5/27$878
lun. 6/311:40 amLHR - STL
1 stop17h 37mFinnair
mar. 6/113:27 pmSTL - LHR
1 stop14h 43mFinnair
Deal found 5/28$879
lun. 6/32:00 pmLGW - STL
1 stop23h 08mMultiple Airlines
mar. 12/106:42 pmSTL - LGW
1 stop30h 48mMultiple Airlines
Deal found 5/27$922
lun. 6/32:30 pmLHR - STL
3 stops29h 07mMultiple Airlines
mar. 12/1012:15 pmSTL - LHR
3 stops16h 40mMultiple Airlines
Deal found 5/27$938
lun. 6/36:10 pmLHR - STL
2 stops35h 49mFinnair
mar. 12/1011:57 amSTL - LHR
1 stop13h 23mFinnair
Deal found 5/27$1,019
lun. 6/34:10 pmLHR - STL
2 stops37h 49mFinnair
mar. 6/116:08 pmSTL - LHR
1 stop12h 07mFinnair
Deal found 5/27$1,167
lun. 6/36:10 pmLHR - STL
2 stops35h 49mFinnair
mar. 6/116:08 pmSTL - LHR
1 stop10h 12mFinnair
Deal found 5/28$1,168

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 2,740,132 searches. Data last updated mayo 28, 2024.
Take a look at some of the one-way flights we've detected from London to St. Louis. For those needing a return trip from London, there is a search form available above.
mié. 6/52:00 pmLGW - STL
1 stop23h 07mMultiple Airlines
Deal found 5/27$274
mar. 6/118:35 pmLHR - STL
3 stops50h 53mMultiple Airlines
Deal found 5/28$351
dom. 9/1512:00 pmLGW - STL
1 stop28h 18mMultiple Airlines
Deal found 5/27$361
dom. 9/1512:00 pmLGW - STL
1 stop28h 18mMultiple Airlines
Deal found 5/28$362
vie. 9/62:00 pmLGW - STL
1 stop14h 14mMultiple Airlines
Deal found 5/28$365
mié. 6/52:00 pmLGW - STL
2 stops30h 32mMultiple Airlines
Deal found 5/27$378
mar. 11/1912:00 pmLGW - STL
1 stop28h 18mMultiple Airlines
Deal found 5/27$408
lun. 9/92:00 pmLGW - STL
1 stop14h 14mMultiple Airlines
Deal found 5/27$428
lun. 9/92:00 pmLGW - STL
1 stop14h 14mMultiple Airlines
Deal found 5/28$430

Find flights from London to St. Louis within your budget

Customize 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 2,740,132 searches. Data last updated mayo 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$639 - $1,270

Route

Depart

Return

Price

London GatwickLambert-St Louis

LGW - STL

LGWSTL

London Gatwick

sáb. 9/14

1 stop34h 29m

Lambert-St Louis

sáb. 9/28

1 stop16h 21m

$639

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

mar. 9/17

1 stop15h 11m

Lambert-St Louis

mié. 10/2

1 stop16h 25m

$650

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

mié. 11/20

2 stops15h 46m

Lambert-St Louis

mar. 11/26

1 stop13h 22m

$1,005

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

mié. 11/20

1 stop13h 25m

Lambert-St Louis

mar. 11/26

1 stop11h 38m

$1,013

London GatwickLambert-St Louis

LGW - STL

LGWSTL

London Gatwick

mar. 9/10

2 stops14h 31m

Lambert-St Louis

mar. 9/24

2 stops13h 55m

$1,014

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

mié. 9/11

1 stop13h 00m

Lambert-St Louis

mié. 9/25

1 stop12h 25m

$1,017

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

mar. 9/10

1 stop15h 00m

Lambert-St Louis

mar. 9/24

1 stop12h 30m

$1,021

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

jue. 7/4

2 stops17h 50m

Lambert-St Louis

jue. 7/18

1 stop10h 06m

$1,190

London CityLambert-St Louis

LCY - STL

LCYSTL

London City

lun. 7/1

2 stops21h 58m

Lambert-St Louis

jue. 7/11

2 stops28h 05m

$1,270

Flights are sorted by cheapest first

Deals found on 5/28

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 round-trip flight from London to St. Louis. Price data was last updated on May 24, 2024.
Booking 27 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from London to St. Louis. Price data was last updated on May 19, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their London to St. Louis flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from London 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.

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

32 - 80.6 °F

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 mayo 28, 2024.
See what other customers who have flown with Finnair, British Airways and KLM from London to St. Louis have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

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.

Delta
8.0
Very good
10,476 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

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.

KLM
7.9
Good
1,528 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

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.

Finnair
7.8
Good
1,371 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

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.

Virgin Atlantic
7.6
Good
721 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

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.

WestJet
7.5
Good
2,871 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

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?

    If you book a flight to St. Louis from London, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from London to Lambert-St Louis per day from 4 different airlines.

  • Can I find flights from London to St. Louis for under $700 on Cheapflights?

    Yes, there are multiple flights from London to St. Louis for under $700. The cheapest flight booked recently is on Multiple Airlines for just $639, but on average you can expect to pay $723.

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

    There are currently 19+ open flights from London to St. Louis within the next 7 days for less than $800.

  • What is the cheapest airline to fly 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 $650 on this airline. Finnair is currently priced 15% below the average price you’ll pay for this route.

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

    While some choose either London Gatwick - Lambert-St Louis or London City - Lambert-St Louis, London Heathrow - Lambert-St Louis is the most popular route from London to St. Louis.

  • What does LHR to STL mean?

    This is defined as London Heathrow Airport (LHR) and Lambert-St Louis Airport (STL). Codes like Lambert-St Louis Airport are often used to just call airports uniquely. Ready for more IATA code knowledge? These are related airports for your current travel destination: London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN).

  • 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 vacation 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 5/28.

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

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

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

    Currently, September is the cheapest month in which you can book a flight from London to St. Louis (average of $319). Flying from London to St. Louis in July is currently the most expensive (average of $366). 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.

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

Heathrow to Kansas City flights
Heathrow to St. Louis flights
Gatwick to St. Louis flights
Gatwick to Kansas City flights
Manchester to Kansas City flights
Heathrow to Springfield flights
Edinburgh to St. Louis flights
Stansted to Kansas City flights
Manchester to St. Louis flights
Newcastle upon Tyne to Kansas City flights
Manchester to Springfield flights
Leeds to St. Louis flights
Leeds to Kansas City flights
Liverpool to St. Louis flights
Birmingham to St. Louis flights
Newcastle upon Tyne to St. Louis flights

Top 4 airlines flying from London to St. Louis

Discover the top 4 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 2,740,132 searches. Data last updated mayo 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$739Average$993FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest$740Average$1,099FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest$971Average$1,113FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest$987Average$1,287FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Charlotte to Dallas flights
Austin to London flights
Chicago to Puerto Rico flights
New York John F Kennedy Intl Airport to Manila flights
Pittsburgh to Boston flights
Newark Airport to San Francisco flights
Boston to Denver flights
New York to Orlando flights
New York to Miami flights
Reno to Las Vegas flights
London to Hailey 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.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

Deals for London 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 London to St. Louis?

Cheapflights simply makes it quick and affordable to book flights from London to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London 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 London 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 London to St. Louis become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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.
View all available airlines