Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to St. Louis from £383

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 26/6. 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.
LHR — STL
21 May — 28 May1
1 adult
Tue 21/5
Tue 28/5

The best prices from London Heathrow to Lambert-St Louis are usually found in November or October, booked 16 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Heathrow to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 16 May 2024.

Popular in

August

Cheapest in

November

Average price

£604

Round-trip from

£527
High demand for flights, 23% potential price rise
Search Deals
Best time to find cheap flights, 17% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From London Heathrow to Lambert-St Louis
Search Deals

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

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to St. Louis. Check prices with Cheapflights to find a great deal for your trip.

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

Travelers have found it’s best to book a flight 28 days in advance to save up to 14% 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 28 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 London Heathrow Airport to St. Louis 1-2 weeks in advance for as low as £521, or £697 for flights within the next 24 hours.

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

The best pricing can be found in the month of November. Prices to St. Louis from London Heathrow Airport average £607. You can even find prices in November for less than £607, as users have found deals to St. Louis from as low as £434. The month of August appears to be one of the more expensive times to travel to St. Louis from London Heathrow Airport. Flying in the targeted month can save you up to 34%.

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

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to St. Louis in the morning. If you’re flexible enough to do this you can expect to save up to 5% on your trip compared to booking a flight in the evening.

Cheap Air Canada flights from Heathrow to St. Louis

Explore cheap flight options specifically provided by Air Canada for the route between Heathrow 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 844,321 searches. Data last updated 16 May 2024.
Find some of the cheapest Air Canada flights travelling from London to St. Louis. Make sure to double check the flight details before booking.
Mon 8/709:30LHR - STL
2 stops16h 31mAir Canada
Mon 7/1010:10STL - LHR
2 stops14h 20mAir Canada
Deal found 15/5£871
Mon 26/809:30LHR - STL
2 stops16h 31mAir Canada
Sat 21/916:05STL - LHR
1 stop10h 30mAir Canada
Deal found 16/5£883
Fri 25/1014:05LHR - STL
1 stop13h 00mAir Canada
Sat 2/1116:10STL - LHR
2 stops47h 25mAir Canada
Deal found 16/5£913
Wed 5/609:30LHR - STL
2 stops16h 31mAir Canada
Tue 16/710:10STL - LHR
2 stops14h 20mAir Canada
Deal found 16/5£939
Mon 24/609:30LHR - STL
2 stops16h 31mAir Canada
Fri 5/716:05STL - LHR
1 stop10h 30mAir Canada
Deal found 16/5£940
Mon 3/609:30LHR - STL
2 stops16h 31mAir Canada
Wed 12/609:50STL - LHR
1 stop14h 45mAir Canada
Deal found 16/5£944
Fri 5/712:05LHR - STL
2 stops15h 00mAir Canada
Thu 25/716:05STL - LHR
1 stop10h 30mAir Canada
Deal found 16/5£948
Thu 6/614:05LHR - STL
1 stop13h 00mAir Canada
Thu 13/609:50STL - LHR
2 stops14h 40mAir Canada
Deal found 16/5£951
Sat 8/614:05LHR - STL
1 stop13h 00mAir Canada
Sat 15/609:50STL - LHR
1 stop14h 45mAir Canada
Deal found 16/5£982

Cheap Lufthansa flights from Heathrow to St. Louis

Explore cheap flight options specifically provided by Lufthansa for the route between Heathrow 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 844,321 searches. Data last updated 16 May 2024.
Have a look at some of the cheapest available Lufthansa flights departing from London and landing in St. Louis. Make sure to examine the flight information before completing your reservation.
Wed 21/819:30LHR - STL
2 stops26h 19mLufthansa
Mon 2/917:20STL - LHR
1 stop30h 35mLufthansa
Deal found 15/5£937
Fri 7/606:30LHR - STL
1 stop13h 00mLufthansa
Sat 15/617:31STL - LHR
1 stop12h 14mLufthansa
Deal found 16/5£989
Thu 6/608:30LHR - STL
1 stop13h 11mLufthansa
Sat 15/617:31STL - LHR
1 stop12h 14mLufthansa
Deal found 16/5£999
Sat 8/609:30LHR - STL
2 stops18h 16mLufthansa
Sat 15/617:31STL - LHR
1 stop12h 14mLufthansa
Deal found 16/5£1,031
Fri 24/506:30LHR - STL
1 stop13h 00mLufthansa
Wed 29/517:31STL - LHR
1 stop12h 14mLufthansa
Deal found 15/5£1,179
Wed 22/506:30LHR - STL
1 stop13h 00mLufthansa
Wed 29/512:50STL - LHR
1 stop11h 55mLufthansa
Deal found 16/5£1,258

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

Find cheap flight options from Heathrow 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 844,321 searches. Prices were last updated on 16 May 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Mon 3/613:00LHR - STL
1 stop27h 29mFinnair
Tue 11/613:42STL - LHR
1 stop12h 08mFinnair
Deal found 15/5£661
Mon 3/609:45LHR - STL
1 stop17h 10mFinnair
Tue 11/617:27STL - LHR
1 stop14h 58mFinnair
Deal found 16/5£662
Mon 24/612:30LHR - STL
1 stop27h 55mFinnair
Sun 30/619:47STL - LHR
1 stop28h 38mFinnair
Deal found 15/5£665
Tue 25/609:45LHR - STL
1 stop12h 21mFinnair
Sun 30/619:47STL - LHR
1 stop28h 38mFinnair
Deal found 15/5£667
Mon 10/613:05LHR - STL
1 stop15h 52mFinnair
Sun 16/616:48STL - LHR
1 stop32h 57mFinnair
Deal found 15/5£670
Tue 4/613:40LHR - STL
1 stop26h 45mFinnair
Sun 9/619:47STL - LHR
1 stop28h 38mFinnair
Deal found 16/5£678
Mon 24/610:05LHR - STL
1 stop13h 13mFinnair
Sat 6/713:22STL - LHR
1 stop15h 08mFinnair
Deal found 15/5£680
Thu 20/612:30LHR - STL
1 stop14h 26mFinnair
Sun 23/618:08STL - LHR
1 stop22h 02mFinnair
Deal found 16/5£685
Sat 15/609:45LHR - STL
1 stop17h 11mFinnair
Thu 20/606:00STL - LHR
1 stop10h 10mFinnair
Deal found 16/5£686

Heathrow to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 16 May 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Mon 16/914:10LHR - STL
1 stop14h 50mFinnair
Mon 30/911:08STL - LHR
1 stop14h 22mFinnair
Deal found 15/5£567
Thu 26/914:10LHR - STL
1 stop14h 50mFinnair
Sun 29/918:58STL - LHR
1 stop32h 07mFinnair
Deal found 15/5£604
Thu 5/914:10LHR - STL
1 stop14h 50mFinnair
Thu 26/914:38STL - LHR
1 stop15h 32mFinnair
Deal found 15/5£656
Thu 5/914:10LHR - STL
1 stop14h 50mFinnair
Thu 26/914:38STL - LHR
1 stop10h 52mFinnair
Deal found 16/5£657
Mon 3/613:00LHR - STL
1 stop27h 29mFinnair
Tue 11/613:42STL - LHR
1 stop12h 08mFinnair
Deal found 15/5£661
Mon 3/609:45LHR - STL
1 stop17h 10mFinnair
Tue 11/617:27STL - LHR
1 stop14h 58mFinnair
Deal found 16/5£662
Mon 24/612:30LHR - STL
1 stop27h 55mFinnair
Sun 30/619:47STL - LHR
1 stop28h 38mFinnair
Deal found 15/5£665
Tue 25/609:45LHR - STL
1 stop12h 21mFinnair
Sun 30/619:47STL - LHR
1 stop28h 38mFinnair
Deal found 15/5£667
Mon 10/613:05LHR - STL
1 stop15h 52mFinnair
Sun 16/616:48STL - LHR
1 stop32h 57mFinnair
Deal found 15/5£670

Heathrow to St. Louis flights leaving soon

Find last-minute flight options from Heathrow 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 844,321 searches. Data last updated 16 May 2024.
Check out these flights departing soon from London to St. Louis. To prevent any unwanted surprises, users should verify their flight info before booking.
Wed 22/513:00LHR - STL
1 stop13h 55mFinnair
Wed 29/505:55STL - LHR
1 stop10h 15mFinnair
Deal found 15/5£784
Sun 26/509:45LHR - STL
1 stop17h 10mFinnair
Fri 31/515:00STL - LHR
1 stop10h 50mFinnair
Deal found 16/5£847
Fri 24/506:00LHR - STL
3 stops35h 45mMultiple Airlines
Wed 29/516:45STL - LHR
3 stops35h 15mMultiple Airlines
Deal found 15/5£880
Wed 22/506:40LHR - STL
3 stops35h 08mMultiple Airlines
Wed 29/507:00STL - LHR
3 stops27h 00mMultiple Airlines
Deal found 16/5£915
Wed 22/510:05LHR - STL
1 stop12h 12mFinnair
Wed 29/510:46STL - LHR
2 stops14h 54mFinnair
Deal found 15/5£1,028
Sun 26/520:45LHR - STL
2 stops29h 01mFinnair
Fri 31/518:02STL - LHR
1 stop16h 03mFinnair
Deal found 16/5£1,030
Wed 22/506:00LHR - STL
3 stops35h 30mMultiple Airlines
Wed 29/512:45STL - LHR
3 stops35h 45mMultiple Airlines
Deal found 15/5£1,092
Wed 22/509:55LHR - STL
2 stops19h 45mKLM
Wed 29/510:10STL - LHR
2 stops16h 45mKLM
Deal found 15/5£1,124
Fri 24/506:30LHR - STL
1 stop13h 00mLufthansa
Wed 29/517:31STL - LHR
1 stop12h 14mLufthansa
Deal found 15/5£1,179

One-way flights to St. Louis from Heathrow

Search for one-way flight options from Heathrow 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 844,321 searches. Data last updated 16 May 2024.
Take a look at some of the best available options we've come across on one-way flights from London to St. Louis. Users can also find round-trip London to St. Louis flights by using the search form above.
Wed 26/613:45LHR - STL
3 stops33h 43mMultiple Airlines
Deal found 16/5£383
Mon 9/921:25LHR - STL
3 stops42h 53mMultiple Airlines
Deal found 16/5£431
Wed 17/713:45LHR - STL
3 stops36h 14mMultiple Airlines
Deal found 15/5£434
Sun 15/922:00LHR - STL
3 stops42h 18mMultiple Airlines
Deal found 16/5£449
Thu 1/822:00LHR - STL
3 stops40h 36mMultiple Airlines
Deal found 16/5£480
Sat 15/620:50LHR - STL
3 stops47h 01mMultiple Airlines
Deal found 16/5£505
Fri 28/614:00LHR - STL
3 stops33h 28mMultiple Airlines
Deal found 16/5£518
Fri 19/714:00LHR - STL
3 stops26h 34mMultiple Airlines
Deal found 15/5£529
Wed 26/621:25LHR - STL
2 stops45h 15mMultiple Airlines
Deal found 16/5£535

Find flights from Heathrow to St. Louis within your budget

Customise your flight search to find flights from Heathrow 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 844,321 searches. Data last updated 16 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£652 - £1,035

Route

Depart

Return

Price

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 26/8

1 stop15h 06m

Lambert-St Louis

Sat 21/9

1 stop14h 22m

£652

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 26/8

3 stops29h 07m

Lambert-St Louis

Sat 21/9

3 stops35h 31m

£740

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 8/7

2 stops16h 31m

Lambert-St Louis

Mon 7/10

2 stops14h 20m

£871

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 26/8

2 stops15h 46m

Lambert-St Louis

Sat 21/9

2 stops13h 35m

£888

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 21/8

2 stops26h 19m

Lambert-St Louis

Mon 2/9

1 stop30h 35m

£937

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 24/6

1 stop13h 37m

Lambert-St Louis

Sun 30/6

1 stop32h 02m

£941

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 5/6

2 stops16h 16m

Lambert-St Louis

Wed 12/6

2 stops14h 40m

£943

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sat 29/6

1 stop12h 16m

Lambert-St Louis

Sat 6/7

1 stop12h 06m

£996

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sat 1/6

2 stops16h 40m

Lambert-St Louis

Fri 7/6

2 stops20h 45m

£1,035

Flights are sorted by cheapest first

Deals found on 16/5

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

Use this chart to determine the optimal time to book a return flight from Heathrow to St. Louis. Price data was last updated on 10 May 2024.
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to St. Louis, you should look to book at least 16 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 Heathrow Airport to St. Louis?

Use this chart to determine the cheapest time to fly return from Heathrow to St. Louis. Price data was last updated on 12 May 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London Heathrow Airport to St. Louis flight should consider departing on Tuesday 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 Heathrow to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Heathrow to St. Louis is currently £474 while a return flight costs £889. Price data was last updated on 12 May 2024.

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to St. Louis (average of £668). Flying from London Heathrow Airport to St. Louis in August is currently the most expensive (average of £852). 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

£571

February

£546

March

£557

April

£565

May

£589

June

£648

July

£609

August

£672

September

£551

October

£544

November

£527

December

£550

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 16 May 2024.
To help decide which airline to fly from London to St. Louis, see what other customers have to say about Air Canada, Lufthansa and Finnair. 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

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

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
2,919 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

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 Heathrow 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 Heathrow?

    For a flight from London Heathrow to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 inbound flights from London Heathrow per day. 9 airlines have flights to Lambert-St Louis from London Heathrow on a regular basis.

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

    Yes, there are multiple flights from London Heathrow Airport to St. Louis for under £700. The cheapest flight booked recently is on Finnair for just £652, but on average you can expect to pay £710.

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

    There are currently 18+ open flights from London Heathrow Airport to St. Louis within the next 7 days for less than £800.

  • What is the cheapest airline to fly from London Heathrow Airport to St. Louis round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to St. Louis round-trip from £652.

  • What are the cheapest airlines to fly from London Heathrow Airport to St. Louis one-way?

    For one-way options, check prices for Finnair. According to our data, you can fly for as low as £691. Users have also found prices from £735 and £828 on British Airways and WestJet, respectively.

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

    Before booking your flight from London Heathrow Airport to St. Louis check out the most popular airlines for this route: American Airlines, Air Canada or Finnair.

  • What does LHR to STL mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a London Heathrow Airport to Lambert-St Louis Airport flight would often be abbreviated as a LHR to STL flight.

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow to St. Louis that allow pets onboard?

    Many airlines flying from Heathrow 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 Heathrow to St. Louis?

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

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

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.

Top 9 airlines flying from Heathrow to St. Louis

Discover the top 9 airlines that operate flights from Heathrow 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 844,321 searches. Data last updated 16 May 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£465Average£821FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£466Average£799FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£471Average£578FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£472Average£852FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£528Average£834FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£559Average£716FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£622Average£951FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest£633Average£842FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£765Average£923FlexibilityNo cancel feeOn-time75%
Search KLM flights
London to Málaga flights
London Gatwick Airport to Seville flights
London to Dubai flights
London to Morocco flights
Birmingham to Paris flights
Bristol to Ibiza flights
London to Lisbon flights
London to Phuket City flights
Bristol to Dublin flights
London to Mozambique flights
Dublin to Crete flights
London Heathrow Airport to London Stansted Airport flights

Search flights from Heathrow to St. Louis by cabin class

Find flights from Heathrow 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 La Paz El Alto Intl
Flights to Lhasa
Flights to Abbotsford
Flights to Parikia Paros
Flights to Cagayan de Oro Laguindingan
Flights to Comiso
Flights to Monterey Regional
Flights to Antakya Hatay
Flights to Samarkand
Flights to Houmt Souk Melita
Flights to Yanbian Yanji Chaoyangchuan
Flights to Daraga Bicol Intl
Flights to Port Vila Bauerfield
Flights to Edremit/Korfez
Flights to Guilin
Flights to Erie
Flights to Mont Lubin Rodrigues Is
Flights to Şırnak Sirnak Serafettin Elci
Flights to Elazig
Flights to Reggio Calabria Tito Menniti
Flights to Malatya Erhac
Flights to Leh
Flights to Tulum Intl
Flights to Praya Lombok Intl

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 Heathrow to St. Louis?

Cheapflights makes it easy to find Heathrow to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from Heathrow.

Can Cheapflights find flights from Heathrow to St. Louis with no change fees?

Certainly. Search results for flights to St. Louis from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Heathrow to St. Louis 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.

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