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Cheap flights from Heathrow (LHR) to St. Louis (STL) from $486

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 6/26. 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
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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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 Saturday 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 May 16, 2024.

Popular in

August

Cheapest in

November

Average price

$766

Round-trip from

$320
High demand for flights, 23% potential price rise
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Best time to find cheap flights, 17% potential price drop
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Average for round-trip flights in May 2024
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From London Heathrow to Lambert-St Louis
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What is the cheapest day to fly round-trip from London Heathrow Airport to St. Louis?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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 $661, or $884 for flights within the next 24 hours.

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

Our data shows that November tends to be the cheapest month to fly to St. Louis from London Heathrow Airport. Users have commonly found prices around $770 for the month, but tickets can be as low as $550. Due to multiple factors, prepare for potentially higher prices in August.

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

It’s optimal to fly from London Heathrow Airport to St. Louis in the afternoon. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight at noon.

Cheap Finnair flights from Heathrow to St. Louis

Explore cheap flight options specifically provided by Finnair 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 2,637,452 searches. Data last updated May 16, 2024.
Peruse some of the lowest-priced Finnair flights we've found from London to St. Louis. Make sure to check back often as deals are often changing.
Mon 9/162:10 pmLHR - STL
1 stop14h 50mFinnair
Mon 9/3011:08 amSTL - LHR
1 stop14h 22mFinnair
Deal found 5/15$719
Thu 9/262:10 pmLHR - STL
1 stop14h 50mFinnair
Sun 9/296:58 pmSTL - LHR
1 stop32h 07mFinnair
Deal found 5/15$766
Thu 9/52:10 pmLHR - STL
1 stop14h 50mFinnair
Thu 9/262:38 pmSTL - LHR
1 stop15h 32mFinnair
Deal found 5/15$832
Thu 9/52:10 pmLHR - STL
1 stop14h 50mFinnair
Thu 9/262:38 pmSTL - LHR
1 stop10h 52mFinnair
Deal found 5/16$833
Mon 6/31:00 pmLHR - STL
1 stop27h 29mFinnair
Tue 6/111:42 pmSTL - LHR
1 stop12h 08mFinnair
Deal found 5/15$838
Mon 6/39:45 amLHR - STL
1 stop17h 10mFinnair
Tue 6/115:27 pmSTL - LHR
1 stop14h 58mFinnair
Deal found 5/16$839
Mon 6/2412:30 pmLHR - STL
1 stop27h 55mFinnair
Sun 6/307:47 pmSTL - LHR
1 stop28h 38mFinnair
Deal found 5/15$843
Tue 6/259:45 amLHR - STL
1 stop12h 21mFinnair
Sun 6/307:47 pmSTL - LHR
1 stop28h 38mFinnair
Deal found 5/15$845
Mon 6/101:05 pmLHR - STL
1 stop15h 52mFinnair
Sun 6/164:48 pmSTL - LHR
1 stop32h 57mFinnair
Deal found 5/15$849

Cheap United Airlines flights from Heathrow to St. Louis

Explore cheap flight options specifically provided by United Airlines 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 2,637,452 searches. Data last updated May 16, 2024.
Some of the best deals we've found on United Airlines flights traveling from London to St. Louis. Make sure to examine the flight information before completing your reservation.
Wed 9/47:25 amLHR - STL
2 stops15h 46mUnited Airlines
Thu 9/2611:09 amSTL - LHR
1 stop12h 46mUnited Airlines
Deal found 5/14$939
Wed 9/47:25 amLHR - STL
2 stops15h 46mUnited Airlines
Thu 9/2611:09 amSTL - LHR
2 stops14h 06mUnited Airlines
Deal found 5/14$943
Wed 9/46:30 amLHR - STL
1 stop13h 00mUnited Airlines
Tue 9/1012:55 pmSTL - LHR
1 stop11h 00mUnited Airlines
Deal found 5/15$1,153
Wed 6/196:50 amLHR - STL
2 stops20h 54mUnited Airlines
Thu 6/2710:19 amSTL - LHR
1 stop13h 36mUnited Airlines
Deal found 5/15$1,157
Tue 9/32:05 pmLHR - STL
1 stop13h 00mUnited Airlines
Wed 9/1112:00 pmSTL - LHR
1 stop12h 30mUnited Airlines
Deal found 5/15$1,161
Mon 6/31:40 pmLHR - STL
1 stop14h 35mUnited Airlines
Tue 6/111:42 pmSTL - LHR
1 stop13h 58mUnited Airlines
Deal found 5/16$1,191
Thu 8/298:30 amLHR - STL
1 stop12h 23mUnited Airlines
Thu 9/55:32 pmSTL - LHR
1 stop10h 38mUnited Airlines
Deal found 5/15$1,204
Thu 7/1112:15 pmLHR - STL
1 stop12h 59mUnited Airlines
Thu 7/251:10 pmSTL - LHR
1 stop13h 20mUnited Airlines
Deal found 5/15$1,205
Fri 6/76:30 amLHR - STL
1 stop13h 00mUnited Airlines
Wed 6/1210:50 amSTL - LHR
1 stop13h 30mUnited Airlines
Deal found 5/16$1,215

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 2,637,452 searches. Prices were last updated on May 16, 2024.
Check out some of the best flight deals from London to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Mon 6/31:00 pmLHR - STL
1 stop27h 29mFinnair
Tue 6/111:42 pmSTL - LHR
1 stop12h 08mFinnair
Deal found 5/15$838
Mon 6/2412:30 pmLHR - STL
1 stop27h 55mFinnair
Sun 6/307:47 pmSTL - LHR
1 stop28h 38mFinnair
Deal found 5/15$843
Tue 6/259:45 amLHR - STL
1 stop12h 21mFinnair
Sun 6/307:47 pmSTL - LHR
1 stop28h 38mFinnair
Deal found 5/15$845
Mon 6/101:05 pmLHR - STL
1 stop15h 52mFinnair
Sun 6/164:48 pmSTL - LHR
1 stop32h 57mFinnair
Deal found 5/15$849
Tue 6/41:40 pmLHR - STL
1 stop26h 45mFinnair
Sun 6/97:47 pmSTL - LHR
1 stop28h 38mFinnair
Deal found 5/16$860
Mon 6/2410:05 amLHR - STL
1 stop13h 13mFinnair
Sat 7/61:22 pmSTL - LHR
1 stop15h 08mFinnair
Deal found 5/15$862
Thu 6/2012:30 pmLHR - STL
1 stop14h 26mFinnair
Sun 6/236:08 pmSTL - LHR
1 stop22h 02mFinnair
Deal found 5/16$868
Sat 6/159:45 amLHR - STL
1 stop17h 11mFinnair
Thu 6/206:00 amSTL - LHR
1 stop10h 10mFinnair
Deal found 5/16$869
Tue 6/119:45 amLHR - STL
1 stop12h 21mFinnair
Mon 6/179:44 amSTL - LHR
1 stop14h 41mFinnair
Deal found 5/15$885

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 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the best flight deals from London to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Mon 9/162:10 pmLHR - STL
1 stop14h 50mFinnair
Mon 9/3011:08 amSTL - LHR
1 stop14h 22mFinnair
Deal found 5/15$719
Thu 9/262:10 pmLHR - STL
1 stop14h 50mFinnair
Sun 9/296:58 pmSTL - LHR
1 stop32h 07mFinnair
Deal found 5/15$766
Thu 9/52:10 pmLHR - STL
1 stop14h 50mFinnair
Thu 9/262:38 pmSTL - LHR
1 stop15h 32mFinnair
Deal found 5/15$832
Mon 6/31:00 pmLHR - STL
1 stop27h 29mFinnair
Tue 6/111:42 pmSTL - LHR
1 stop12h 08mFinnair
Deal found 5/15$838
Mon 6/2412:30 pmLHR - STL
1 stop27h 55mFinnair
Sun 6/307:47 pmSTL - LHR
1 stop28h 38mFinnair
Deal found 5/15$843
Tue 6/259:45 amLHR - STL
1 stop12h 21mFinnair
Sun 6/307:47 pmSTL - LHR
1 stop28h 38mFinnair
Deal found 5/15$845
Mon 6/101:05 pmLHR - STL
1 stop15h 52mFinnair
Sun 6/164:48 pmSTL - LHR
1 stop32h 57mFinnair
Deal found 5/15$849
Tue 6/41:40 pmLHR - STL
1 stop26h 45mFinnair
Sun 6/97:47 pmSTL - LHR
1 stop28h 38mFinnair
Deal found 5/16$860
Mon 6/2410:05 amLHR - STL
1 stop13h 13mFinnair
Sat 7/61:22 pmSTL - LHR
1 stop15h 08mFinnair
Deal found 5/15$862

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 2,637,452 searches. Data last updated May 16, 2024.
Have a look at some of the last-minute flights available departing from London to St. Louis. To prevent any unwanted surprises, users should verify their flight info before booking.
Wed 5/221:00 pmLHR - STL
1 stop13h 55mFinnair
Wed 5/295:55 amSTL - LHR
1 stop10h 15mFinnair
Deal found 5/15$994
Fri 5/246:00 amLHR - STL
3 stops35h 45mMultiple Airlines
Wed 5/294:45 pmSTL - LHR
3 stops35h 15mMultiple Airlines
Deal found 5/15$1,115
Wed 5/229:55 amLHR - STL
3 stops31h 53mMultiple Airlines
Wed 5/297:00 amSTL - LHR
3 stops19h 55mMultiple Airlines
Deal found 5/15$1,270
Wed 5/2210:05 amLHR - STL
1 stop12h 12mFinnair
Wed 5/2910:46 amSTL - LHR
2 stops14h 54mFinnair
Deal found 5/15$1,303
Wed 5/226:00 amLHR - STL
3 stops35h 30mMultiple Airlines
Wed 5/2912:45 pmSTL - LHR
3 stops35h 45mMultiple Airlines
Deal found 5/15$1,384
Wed 5/229:55 amLHR - STL
2 stops19h 45mKLM
Wed 5/2910:10 amSTL - LHR
2 stops16h 45mKLM
Deal found 5/15$1,425
Fri 5/246:30 amLHR - STL
1 stop13h 00mLufthansa
Wed 5/295:31 pmSTL - LHR
1 stop12h 14mLufthansa
Deal found 5/15$1,495
Fri 5/246:30 amLHR - STL
1 stop13h 00mUnited Airlines
Wed 5/2911:38 amSTL - LHR
2 stops14h 42mUnited Airlines
Deal found 5/15$1,504
Fri 5/246:30 amLHR - STL
2 stops15h 11mUnited Airlines
Wed 5/291:10 pmSTL - LHR
2 stops15h 30mUnited Airlines
Deal found 5/15$1,514

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 2,637,452 searches. Data last updated May 16, 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 needing a return flight from London to St. Louis should utilize the search form above.
Wed 6/261:45 pmLHR - STL
3 stops33h 43mMultiple Airlines
Deal found 5/16$486
Wed 9/49:10 pmLHR - STL
3 stops43h 08mMultiple Airlines
Deal found 5/15$507
Mon 9/99:25 pmLHR - STL
3 stops42h 53mMultiple Airlines
Deal found 5/16$546
Wed 7/171:45 pmLHR - STL
3 stops36h 14mMultiple Airlines
Deal found 5/15$550
Sun 9/1510:00 pmLHR - STL
3 stops42h 18mMultiple Airlines
Deal found 5/16$569
Tue 10/87:50 pmLHR - STL
2 stops30h 10mMultiple Airlines
Deal found 5/15$581
Fri 6/282:00 pmLHR - STL
3 stops33h 28mMultiple Airlines
Deal found 5/16$657
Fri 7/192:00 pmLHR - STL
3 stops26h 34mMultiple Airlines
Deal found 5/15$670
Mon 10/76:50 amLHR - STL
3 stops19h 41mMultiple Airlines
Deal found 5/15$673

Find flights from Heathrow to St. Louis within your budget

Customize 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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$719 - $1,185

Route

Depart

Return

Price

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 9/16

1 stop14h 50m

Lambert-St Louis

Mon 9/30

1 stop14h 22m

$719

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Thu 9/26

1 stop14h 50m

Lambert-St Louis

Sun 9/29

1 stop32h 07m

$766

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 9/4

2 stops15h 46m

Lambert-St Louis

Thu 9/26

1 stop12h 46m

$939

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 9/4

1 stop17h 35m

Lambert-St Louis

Thu 9/26

1 stop14h 25m

$940

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Thu 9/5

2 stops22h 59m

Lambert-St Louis

Thu 9/26

2 stops24h 00m

$953

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 9/16

1 stop13h 40m

Lambert-St Louis

Mon 9/30

2 stops12h 50m

$992

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 6/19

1 stop13h 14m

Lambert-St Louis

Thu 6/27

1 stop14h 43m

$1,043

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 8/28

2 stops16h 04m

Lambert-St Louis

Wed 9/4

1 stop13h 15m

$1,171

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Tue 6/11

1 stop13h 11m

Lambert-St Louis

Tue 7/2

1 stop12h 15m

$1,185

Flights are sorted by cheapest first

Deals found on 5/15

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 round-trip flight from Heathrow to St. Louis. Price data was last updated on May 10, 2024.
The best time to book flights from London Heathrow Airport to St. Louis is 16 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.
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 round-trip from Heathrow to St. Louis. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their London Heathrow Airport to St. Louis flight should consider departing on Wednesday mornings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to 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 $582 while a round-trip flight costs $968. Price data was last updated on May 12, 2024.

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to St. Louis (average of $320). Flying from London Heathrow Airport to St. Louis in July is currently the most expensive (average of $369). 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

$326

February

$331

March

$357

April

$337

May

$342

June

$366

July

$369

August

$336

September

$320

October

$324

November

$336

December

$326

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 May 16, 2024.
Peruse reviews from past customers who have flown with Finnair, United Airlines and Air Canada from London to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Comfort

7.9

Boarding

8.2

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

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Comfort

7.9

Boarding

8.2

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

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Comfort

7.9

Boarding

8.2

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

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Comfort

7.9

Boarding

8.2

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

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Comfort

7.9

Boarding

8.2

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.

Austrian Airlines
7.7
Good
1,053 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Comfort

7.9

Boarding

8.2

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?

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from London Heathrow to St. Louis. You should not have trouble finding flights to Lambert-St Louis from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the St. Louis airport from London Heathrow. 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 Heathrow Airport to St. Louis for under $800 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to St. Louis for under $800. The cheapest flight booked recently is on Finnair for just $719, but on average you can expect to pay $850.

  • Are there last-minute flights available from London Heathrow Airport to St. Louis for under $1,000?

    There are currently 11+ open flights from London Heathrow Airport to St. Louis within the next 7 days for less than $1,000.

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

    Cheapflights users have booked flights from London Heathrow Airport to St. Louis round-trip from $719. Other airlines that can offer you cheap pricing are United Airlines, from $939, and Air Canada, from $940. You may be able to fly from London Heathrow Airport to St. Louis for 8% less than the average price by searching for these airlines.

  • 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, British Airways or Lufthansa.

  • What does LHR to STL mean?

    LHR and STL are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. LHR to STL refers to a flight route from London Heathrow Airport to Lambert-St Louis Airport.

  • 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 vacation 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 5/16.

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

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Top 4 airlines flying from Heathrow to St. Louis

Discover the top 4 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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$725Average$1,000FlexibilityNo cancel feeOn-time69%
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LufthansaCheapest$740Average$1,099FlexibilityNo cancel feeOn-time76%
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British AirwaysCheapest$971Average$1,130FlexibilityNo cancel feeOn-time70%
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American AirlinesCheapest$987Average$1,287FlexibilityNo cancel feeOn-time71%
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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.
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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 Heathrow to St. Louis?

Deals for Heathrow 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 Heathrow to St. Louis?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to St. Louis for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights from Heathrow to St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Heathrow 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!

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