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Cheap flights from Heathrow (LHR) to St. Louis (STL) from $309

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.
LHR — STL
May 18 — May 251
From?
To?
Sat 5/18
Sat 5/25
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 Saturday or Wednesday 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 13, 2024.

Popular in

August

Cheapest in

November

Average price

$766

Round-trip from

$322
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 Friday, 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 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 2,633,403 searches. Data last updated May 13, 2024.
Peruse some of the lowest-priced United Airlines flights we've found from London to St. Louis. Make sure to check back often as deals are often changing.
Thu 9/266:50 amLHR - STL
2 stops13h 58mUnited Airlines
Sun 9/294:55 pmSTL - LHR
1 stop34h 45mUnited Airlines
Deal found 5/13$893
Wed 9/46:50 amLHR - STL
2 stops14h 03mUnited Airlines
Thu 9/2611:09 amSTL - LHR
2 stops14h 06mUnited Airlines
Deal found 5/13$931
Wed 10/239:30 amLHR - STL
1 stop17h 35mUnited Airlines
Wed 11/65:40 pmSTL - LHR
1 stop11h 25mUnited Airlines
Deal found 5/12$935
Mon 6/36:50 amLHR - STL
2 stops14h 51mUnited Airlines
Tue 6/111:42 pmSTL - LHR
1 stop16h 38mUnited Airlines
Deal found 5/12$1,006
Mon 10/149:30 amLHR - STL
1 stop17h 35mUnited Airlines
Thu 10/315:40 pmSTL - LHR
1 stop11h 35mUnited Airlines
Deal found 5/12$1,010
Tue 6/116:50 amLHR - STL
2 stops14h 51mUnited Airlines
Tue 6/188:05 amSTL - LHR
1 stop18h 55mUnited Airlines
Deal found 5/12$1,013
Wed 6/191:05 pmLHR - STL
1 stop14h 42mUnited Airlines
Tue 6/251:42 pmSTL - LHR
1 stop13h 58mUnited Airlines
Deal found 5/13$1,016
Mon 10/218:30 amLHR - STL
1 stop12h 18mUnited Airlines
Sat 11/23:35 pmSTL - LHR
1 stop11h 20mUnited Airlines
Deal found 5/12$1,053
Tue 8/138:30 amLHR - STL
1 stop13h 10mUnited Airlines
Mon 9/25:20 pmSTL - LHR
2 stops31h 25mUnited Airlines
Deal found 5/12$1,287

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 2,633,403 searches. Data last updated May 13, 2024.
Some of the best deals we've found on Lufthansa flights traveling from London to St. Louis. Make sure to examine the flight information before completing your reservation.
Thu 9/263:20 pmLHR - STL
1 stop12h 32mLufthansa
Sun 9/295:30 pmSTL - LHR
2 stops30h 25mLufthansa
Deal found 5/12$898
Thu 10/248:30 amLHR - STL
1 stop13h 19mLufthansa
Wed 11/65:37 pmSTL - LHR
1 stop11h 38mLufthansa
Deal found 5/12$978
Mon 5/276:30 amLHR - STL
2 stops15h 11mLufthansa
Sat 6/15:31 pmSTL - LHR
1 stop12h 14mLufthansa
Deal found 5/13$2,062

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 2,633,403 searches. Prices were last updated on May 13, 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.
Wed 6/1911:15 amLHR - STL
1 stop17h 43mFinnair
Tue 6/255:15 amSTL - LHR
1 stop20h 25mFinnair
Deal found 5/12$687
Mon 6/32:10 pmLHR - STL
1 stop15h 09mFinnair
Tue 6/115:38 pmSTL - LHR
1 stop12h 32mFinnair
Deal found 5/12$752
Mon 6/32:10 pmLHR - STL
1 stop15h 09mFinnair
Tue 6/113:27 pmSTL - LHR
1 stop11h 38mFinnair
Deal found 5/13$760
Thu 5/1611:15 amLHR - STL
1 stop18h 02mFinnair
Sun 5/195:08 pmSTL - LHR
1 stop23h 02mFinnair
Deal found 5/12$918
Mon 6/36:10 pmLHR - STL
2 stops35h 49mFinnair
Tue 6/116:08 pmSTL - LHR
1 stop22h 02mFinnair
Deal found 5/12$960
Mon 6/36:50 amLHR - STL
2 stops14h 51mUnited Airlines
Tue 6/111:42 pmSTL - LHR
1 stop16h 38mUnited Airlines
Deal found 5/12$1,006
Tue 6/119:30 amLHR - STL
1 stop17h 35mAir Canada
Tue 6/189:50 amSTL - LHR
1 stop14h 40mAir Canada
Deal found 5/12$1,008
Mon 6/106:50 amLHR - STL
2 stops20h 54mUnited Airlines
Mon 6/1710:15 amSTL - LHR
1 stop13h 40mUnited Airlines
Deal found 5/13$1,013
Wed 6/194:40 pmLHR - STL
1 stop22h 52mUnited Airlines
Tue 6/253:10 pmSTL - LHR
1 stop11h 50mUnited Airlines
Deal found 5/12$1,016

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 2,633,403 searches. Data last updated May 13, 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 7/89:45 amLHR - STL
1 stop17h 04mFinnair
Mon 10/75:30 pmSTL - LHR
1 stop16h 35mFinnair
Deal found 5/12$662
Thu 9/262:05 pmLHR - STL
1 stop31h 35mFinnair
Sun 9/296:58 pmSTL - LHR
1 stop30h 32mFinnair
Deal found 5/13$672
Thu 9/262:05 pmLHR - STL
1 stop31h 35mFinnair
Sun 9/296:58 pmSTL - LHR
1 stop32h 07mFinnair
Deal found 5/12$673
Sun 12/12:10 pmLHR - STL
1 stop15h 12mFinnair
Wed 12/45:34 amSTL - LHR
1 stop22h 06mFinnair
Deal found 5/12$676
Wed 6/1911:15 amLHR - STL
1 stop17h 43mFinnair
Tue 6/255:15 amSTL - LHR
1 stop20h 25mFinnair
Deal found 5/12$687
Tue 10/222:10 pmLHR - STL
1 stop14h 50mFinnair
Mon 11/42:43 pmSTL - LHR
1 stop15h 07mFinnair
Deal found 5/12$691
Thu 9/54:55 pmLHR - STL
1 stop28h 45mFinnair
Thu 9/262:38 pmSTL - LHR
1 stop12h 27mFinnair
Deal found 5/12$697
Thu 7/1111:15 amLHR - STL
1 stop17h 52mFinnair
Thu 7/255:46 pmSTL - LHR
1 stop12h 24mFinnair
Deal found 5/12$721
Mon 7/111:15 amLHR - STL
1 stop17h 43mFinnair
Sat 7/63:18 pmSTL - LHR
1 stop11h 47mFinnair
Deal found 5/12$740

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 2,633,403 searches. Data last updated May 13, 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.
Mon 5/208:10 amLHR - STL
1 stop17h 36mAmerican Airlines
Sat 5/2510:49 amSTL - LHR
1 stop26h 06mAmerican Airlines
Deal found 5/12$1,074
Mon 5/2010:15 pmLHR - STL
2 stops23h 31mMultiple Airlines
Sat 5/255:25 pmSTL - LHR
2 stops21h 25mMultiple Airlines
Deal found 5/13$1,404
Sat 5/186:30 pmLHR - STL
2 stops26h 51mMultiple Airlines
Sat 5/255:25 pmSTL - LHR
2 stops21h 25mMultiple Airlines
Deal found 5/11$1,424
Sat 5/186:40 amLHR - STL
3 stops32h 14mMultiple Airlines
Sat 5/2510:10 amSTL - LHR
3 stops25h 30mMultiple Airlines
Deal found 5/11$1,610
Sat 5/1812:00 pmLHR - STL
1 stop16h 15mMultiple Airlines
Sat 5/2512:50 pmSTL - LHR
1 stop15h 50mMultiple Airlines
Deal found 5/11$1,669
Sat 5/182:05 pmLHR - STL
1 stop13h 00mAir Canada
Sat 5/259:50 amSTL - LHR
2 stops14h 40mAir Canada
Deal found 5/11$1,670
Wed 5/226:40 amLHR - STL
3 stops35h 08mMultiple Airlines
Sat 5/2510:10 amSTL - LHR
3 stops25h 30mMultiple Airlines
Deal found 5/12$2,030
Wed 5/228:40 amLHR - STL
2 stops17h 14mUnited Airlines
Sat 5/2510:15 amSTL - LHR
2 stops14h 15mUnited Airlines
Deal found 5/12$2,059
Mon 5/207:05 amLHR - STL
3 stops22h 35mMultiple Airlines
Sat 5/2510:10 amSTL - LHR
3 stops22h 25mMultiple Airlines
Deal found 5/13$2,628

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 2,633,403 searches. Data last updated May 13, 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 6/51:45 pmLHR - STL
3 stops33h 43mMultiple Airlines
Deal found 5/12$309
Fri 5/312:00 pmLHR - STL
3 stops32h 25mMultiple Airlines
Deal found 5/11$434
Fri 8/237:05 amLHR - STL
3 stops38h 36mMultiple Airlines
Deal found 5/13$507
Sun 9/158:45 pmLHR - STL
3 stops43h 33mMultiple Airlines
Deal found 5/12$510
Wed 6/191:45 pmLHR - STL
3 stops35h 37mMultiple Airlines
Deal found 5/12$513
Mon 6/246:15 amLHR - STL
3 stops38h 08mMultiple Airlines
Deal found 5/11$561
Wed 9/116:00 amLHR - STL
2 stops20h 00mMultiple Airlines
Deal found 5/13$586
Wed 9/111:45 pmLHR - STL
3 stops27h 24mMultiple Airlines
Deal found 5/13$626
Wed 6/55:10 pmLHR - STL
2 stops51h 06mMultiple Airlines
Deal found 5/12$631

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 2,633,403 searches. Data last updated May 13, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$661 - $1,112

Route

Depart

Return

Price

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 9/4

1 stop28h 45m

Lambert-St Louis

Thu 9/26

1 stop12h 27m

$661

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Thu 9/26

2 stops13h 58m

Lambert-St Louis

Sun 9/29

1 stop34h 45m

$893

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Thu 9/26

1 stop12h 32m

Lambert-St Louis

Sun 9/29

2 stops30h 25m

$898

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 9/4

2 stops15h 59m

Lambert-St Louis

Thu 9/26

1 stop12h 34m

$909

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Fri 11/1

1 stop13h 25m

Lambert-St Louis

Fri 11/8

2 stops33h 00m

$918

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Thu 9/26

2 stops31h 15m

Lambert-St Louis

Sun 9/29

2 stops35h 55m

$930

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 10/23

2 stops16h 29m

Lambert-St Louis

Tue 11/5

2 stops14h 04m

$945

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 5/27

1 stop12h 25m

Lambert-St Louis

Sat 6/1

1 stop25h 10m

$1,074

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sat 10/19

1 stop11h 42m

Lambert-St Louis

Fri 11/1

1 stop10h 10m

$1,112

Flights are sorted by cheapest first

Deals found on 5/13

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.
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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 5, 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 Saturday 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.
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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 $520 while a round-trip flight costs $927. Price data was last updated on May 5, 2024.

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to St. Louis (average of $322). Flying from London Heathrow Airport to St. Louis in July is currently the most expensive (average of $372). 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

$369

July

$372

August

$336

September

$322

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 13, 2024.
Peruse reviews from past customers who have flown with United Airlines, Lufthansa 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
10,736 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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
1,574 reviews
Delta
8.0
Very good
10,736 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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
1,378 reviews
Delta
8.0
Very good
10,736 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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.

Austrian Airlines
7.7
Good
1,056 reviews
Delta
8.0
Very good
10,736 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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?

    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 $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 $661, but on average you can expect to pay $771.

  • Are there last-minute flights available from London Heathrow Airport to St. Louis for under $1,100?

    There are currently 13+ open flights from London Heathrow Airport to St. Louis within the next 7 days for less than $1,100.

  • 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 $661. Other airlines that can offer you cheap pricing are United Airlines, from $893, and Lufthansa, from $898. You may be able to fly from London Heathrow Airport to St. Louis for 15% less than the average price by searching for these airlines.

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

    One-way options have recently been found by users for as low as $890 on Lufthansa. Other airlines that offer cheap prices include Air Canada from $901 and Iberia from $1,057 one-way.

  • 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 5/13.

See more FAQs

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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 2,633,403 searches. Data last updated May 13, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$740Average$1,099FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest$796Average$1,054FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest$977Average$1,113FlexibilityNo cancel feeOn-time70%
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