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Cheap flights from Heathrow (LHR) to St. Louis (STL) from $297

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 12 — May 191
From?
To?
Sun 5/12
Sun 5/19
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 7, 2024.

Popular in

August

Cheapest in

November

Average price

$761

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 11% 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 $768 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 2,749,864 searches. Data last updated May 7, 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.
Tue 5/1411:40 amLHR - STL
1 stop17h 37mFinnair
Tue 5/2110:46 amSTL - LHR
1 stop16h 19mFinnair
Deal found 5/7$661
Mon 9/210:10 amLHR - STL
1 stop18h 32mFinnair
Sun 9/226:58 pmSTL - LHR
1 stop30h 32mFinnair
Deal found 5/6$662
Mon 6/1011:40 amLHR - STL
1 stop17h 18mFinnair
Thu 6/203:27 pmSTL - LHR
1 stop11h 38mFinnair
Deal found 5/7$682
Tue 9/31:00 pmLHR - STL
1 stop13h 59mFinnair
Tue 9/105:30 pmSTL - LHR
1 stop16h 35mFinnair
Deal found 5/6$683
Tue 9/102:10 pmLHR - STL
1 stop14h 50mFinnair
Fri 9/207:00 pmSTL - LHR
1 stop31h 05mFinnair
Deal found 5/7$684
Mon 9/24:55 pmLHR - STL
1 stop35h 47mFinnair
Mon 9/911:08 amSTL - LHR
1 stop14h 22mFinnair
Deal found 5/7$685
Mon 6/38:10 pmLHR - STL
1 stop22h 59mFinnair
Tue 6/116:29 amSTL - LHR
1 stop24h 21mFinnair
Deal found 5/6$686
Mon 6/1011:40 amLHR - STL
1 stop17h 18mFinnair
Sun 6/166:08 pmSTL - LHR
1 stop22h 02mFinnair
Deal found 5/7$687
Mon 5/279:45 amLHR - STL
1 stop17h 10mFinnair
Tue 6/116:29 amSTL - LHR
1 stop24h 21mFinnair
Deal found 5/6$688

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 2,749,864 searches. Data last updated May 7, 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.
Tue 5/146:50 amLHR - STL
2 stops14h 56mUnited Airlines
Tue 5/2111:10 amSTL - LHR
2 stops14h 05mUnited Airlines
Deal found 5/7$858
Tue 9/107:25 amLHR - STL
2 stops15h 46mUnited Airlines
Fri 9/205:20 pmSTL - LHR
2 stops35h 20mUnited Airlines
Deal found 5/7$896
Mon 9/26:50 amLHR - STL
2 stops18h 57mUnited Airlines
Sun 9/225:20 pmSTL - LHR
2 stops31h 25mUnited Airlines
Deal found 5/6$932
Thu 9/56:50 amLHR - STL
2 stops14h 03mUnited Airlines
Thu 9/2611:09 amSTL - LHR
1 stop12h 46mUnited Airlines
Deal found 5/6$970
Wed 5/296:30 amLHR - STL
1 stop13h 00mUnited Airlines
Mon 6/175:25 pmSTL - LHR
1 stop11h 45mUnited Airlines
Deal found 5/6$1,004
Mon 5/276:50 amLHR - STL
2 stops14h 51mUnited Airlines
Tue 6/111:10 pmSTL - LHR
2 stops13h 10mUnited Airlines
Deal found 5/6$1,007
Mon 5/276:50 amLHR - STL
2 stops14h 51mUnited Airlines
Tue 6/1110:15 amSTL - LHR
2 stops14h 05mUnited Airlines
Deal found 5/7$1,008
Mon 5/278:30 amLHR - STL
1 stop11h 44mUnited Airlines
Tue 6/1111:38 amSTL - LHR
1 stop12h 17mUnited Airlines
Deal found 5/6$1,017
Mon 6/103:20 pmLHR - STL
1 stop12h 27mUnited Airlines
Tue 6/184:05 pmSTL - LHR
1 stop11h 30mUnited Airlines
Deal found 5/7$1,024

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 2,749,864 searches. Prices were last updated on May 7, 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.
Tue 5/1411:40 amLHR - STL
1 stop17h 37mFinnair
Tue 5/2110:46 amSTL - LHR
1 stop16h 19mFinnair
Deal found 5/7$661
Mon 6/38:10 pmLHR - STL
1 stop22h 59mFinnair
Tue 6/116:29 amSTL - LHR
1 stop24h 21mFinnair
Deal found 5/6$686
Mon 5/279:45 amLHR - STL
1 stop17h 10mFinnair
Tue 6/116:29 amSTL - LHR
1 stop24h 21mFinnair
Deal found 5/6$688
Wed 5/1511:15 amLHR - STL
1 stop18h 02mFinnair
Sat 5/1810:46 amSTL - LHR
1 stop16h 19mFinnair
Deal found 5/7$697
Thu 5/92:10 pmLHR - STL
1 stop15h 09mFinnair
Sat 5/184:20 pmSTL - LHR
1 stop10h 45mFinnair
Deal found 5/6$712
Thu 5/3011:40 amLHR - STL
1 stop17h 37mFinnair
Sun 6/27:20 pmSTL - LHR
1 stop30h 45mFinnair
Deal found 5/6$717
Sun 5/2611:15 amLHR - STL
1 stop18h 02mFinnair
Tue 6/44:20 pmSTL - LHR
1 stop10h 45mFinnair
Deal found 5/6$722
Wed 5/152:10 pmLHR - STL
1 stop15h 09mFinnair
Sat 5/254:20 pmSTL - LHR
1 stop10h 45mFinnair
Deal found 5/6$732
Mon 6/32:10 pmLHR - STL
1 stop15h 09mFinnair
Tue 6/119:23 amSTL - LHR
1 stop16h 17mFinnair
Deal found 5/7$752

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 2,749,864 searches. Data last updated May 7, 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.
Tue 5/1411:40 amLHR - STL
1 stop17h 37mFinnair
Tue 5/2110:46 amSTL - LHR
1 stop16h 19mFinnair
Deal found 5/7$661
Mon 9/210:10 amLHR - STL
1 stop18h 32mFinnair
Sun 9/226:58 pmSTL - LHR
1 stop30h 32mFinnair
Deal found 5/6$662
Tue 9/31:00 pmLHR - STL
1 stop13h 59mFinnair
Tue 9/105:30 pmSTL - LHR
1 stop16h 35mFinnair
Deal found 5/6$683
Mon 6/38:10 pmLHR - STL
1 stop22h 59mFinnair
Tue 6/116:29 amSTL - LHR
1 stop24h 21mFinnair
Deal found 5/6$686
Mon 7/111:15 amLHR - STL
1 stop17h 43mFinnair
Mon 7/85:46 pmSTL - LHR
1 stop12h 24mFinnair
Deal found 5/6$687
Mon 5/279:45 amLHR - STL
1 stop17h 10mFinnair
Tue 6/116:29 amSTL - LHR
1 stop24h 21mFinnair
Deal found 5/6$688
Wed 5/1511:15 amLHR - STL
1 stop18h 02mFinnair
Sat 5/1810:46 amSTL - LHR
1 stop16h 19mFinnair
Deal found 5/7$697
Thu 9/58:40 amLHR - STL
1 stop17h 35mFinnair
Thu 9/265:30 pmSTL - LHR
1 stop16h 35mFinnair
Deal found 5/6$700
Thu 9/2612:30 pmLHR - STL
1 stop16h 30mFinnair
Sun 9/296:58 pmSTL - LHR
1 stop30h 32mFinnair
Deal found 5/6$703

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 2,749,864 searches. Data last updated May 7, 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.
Tue 5/1411:40 amLHR - STL
1 stop17h 37mFinnair
Tue 5/2110:46 amSTL - LHR
1 stop16h 19mFinnair
Deal found 5/7$661
Wed 5/1511:15 amLHR - STL
1 stop18h 02mFinnair
Sat 5/1810:46 amSTL - LHR
1 stop16h 19mFinnair
Deal found 5/7$697
Wed 5/152:10 pmLHR - STL
1 stop15h 09mFinnair
Sat 5/254:20 pmSTL - LHR
1 stop10h 45mFinnair
Deal found 5/6$732
Tue 5/146:50 amLHR - STL
2 stops14h 56mUnited Airlines
Tue 5/2111:10 amSTL - LHR
2 stops14h 05mUnited Airlines
Deal found 5/7$858
Thu 5/169:30 amLHR - STL
1 stop17h 35mAir Canada
Mon 5/2011:00 amSTL - LHR
1 stop13h 30mAir Canada
Deal found 5/5$897
Wed 5/157:55 pmLHR - STL
2 stops24h 18mFinnair
Sat 5/185:08 pmSTL - LHR
1 stop23h 02mFinnair
Deal found 5/7$908
Thu 5/169:55 amLHR - STL
2 stops17h 39mDelta
Mon 5/206:12 pmSTL - LHR
2 stops12h 03mDelta
Deal found 5/5$909
Wed 5/1512:15 pmLHR - STL
1 stop15h 32mFinnair
Sat 5/185:08 pmSTL - LHR
1 stop23h 02mFinnair
Deal found 5/6$926
Wed 5/157:55 pmLHR - STL
2 stops24h 18mFinnair
Sat 5/187:08 amSTL - LHR
2 stops29h 47mFinnair
Deal found 5/7$943

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 2,749,864 searches. Data last updated May 7, 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 5/7$297
Wed 6/121:45 pmLHR - STL
3 stops33h 43mMultiple Airlines
Deal found 5/7$325
Wed 6/191:45 pmLHR - STL
3 stops33h 43mMultiple Airlines
Deal found 5/7$369
Fri 5/172:00 pmLHR - STL
3 stops26h 28mMultiple Airlines
Deal found 5/6$401
Tue 6/187:20 amLHR - STL
3 stops43h 46mMultiple Airlines
Deal found 5/6$417
Thu 5/236:45 amLHR - STL
3 stops33h 28mMultiple Airlines
Deal found 5/7$465
Wed 5/151:45 pmLHR - STL
3 stops33h 44mMultiple Airlines
Deal found 5/7$493
Wed 5/151:45 pmLHR - STL
3 stops33h 44mMultiple Airlines
Deal found 5/6$497
Mon 5/131:55 pmLHR - STL
2 stops26h 14mMultiple Airlines
Deal found 5/6$498

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 2,749,864 searches. Data last updated May 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$662 - $1,095

Route

Depart

Return

Price

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 9/2

1 stop18h 32m

Lambert-St Louis

Sun 9/22

1 stop30h 32m

$662

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Tue 9/10

2 stops15h 46m

Lambert-St Louis

Fri 9/20

2 stops35h 20m

$896

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Thu 9/26

2 stops31h 44m

Lambert-St Louis

Sun 9/29

2 stops32h 25m

$931

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sat 9/21

2 stops26h 02m

Lambert-St Louis

Sat 10/5

1 stop12h 11m

$933

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sat 9/21

2 stops18h 51m

Lambert-St Louis

Sat 10/5

2 stops16h 05m

$946

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 5/27

2 stops16h 22m

Lambert-St Louis

Wed 6/12

1 stop19h 09m

$1,034

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 5/27

1 stop13h 02m

Lambert-St Louis

Wed 6/5

1 stop20h 25m

$1,037

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Fri 5/24

1 stop12h 12m

Lambert-St Louis

Thu 6/13

1 stop10h 10m

$1,076

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Fri 5/24

1 stop13h 11m

Lambert-St Louis

Sat 6/1

2 stops31h 14m

$1,095

Flights are sorted by cheapest first

Deals found on 5/6

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 3, 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 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 $418 while a round-trip flight costs $957. 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 7, 2024.
Peruse reviews from past customers who have flown with Finnair, United Airlines and Virgin Atlantic 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
8.1
Very good
10,810 reviews
Check prices

Crew

8.6

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

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

Delta
8.1
Very good
10,810 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Crew

8.6

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

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

KLM
7.9
Good
1,598 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Crew

8.6

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

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

Finnair
7.8
Good
1,379 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Crew

8.6

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

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

Virgin Atlantic
7.7
Good
740 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Crew

8.6

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

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

Austrian Airlines
7.7
Good
1,065 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Crew

8.6

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

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

Related info for your journey

Find useful and relevant information for your journey from 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 $662, but on average you can expect to pay $710.

  • Are there last-minute flights available from London Heathrow Airport to St. Louis for under $700?

    There are currently 16+ open flights from London Heathrow Airport to St. Louis within the next 7 days for less than $700.

  • 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 $662. You may be able to fly from London Heathrow Airport to St. Louis for 15% less than the average price by searching for this airline.

  • 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 5/7.

See more FAQs

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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 2,749,864 searches. Data last updated May 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$740Average$1,099FlexibilityNo cancel feeOn-time76%
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United AirlinesCheapest$796Average$1,054FlexibilityNo cancel feeOn-time69%
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British AirwaysCheapest$977Average$1,113FlexibilityNo 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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