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Cheap flights from St. Louis (STL) to Heathrow (LHR) from $419

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 5/17. 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.
STL — LHR
May 9 — May 161
From?
To?
Thu 5/9
Thu 5/16
1 adult, Economy
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The best prices from Lambert-St Louis to London Heathrow are usually found in February or November, booked 19 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from St. Louis to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Heathrow (LHR). 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 4, 2024.

Popular in

June

Cheapest in

February

Round-trip from

$643

One-way from

$554
High demand for flights, 34% potential price rise
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Best time to find cheap flights, 22% potential price drop
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From Lambert-St Louis to London Heathrow
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One-way flight from Lambert-St Louis to London Heathrow
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What is the cheapest day to fly round-trip from St. Louis to London Heathrow Airport?

Flights from St. Louis to London Heathrow Airport are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London Heathrow Airport.

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

Find a great deal and save up to 134% by booking at least 35 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to London Heathrow Airport within the next two weeks, with the cheapest ticket starting at $1,161.

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

Flights from St. Louis to London Heathrow Airport lean towards being more expensive in June. Prices are generally better when you fly from St. Louis to London Heathrow Airport in February, with the cheapest ticket starting at $656.

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

One of the essential ways to save on airfare from St. Louis to London Heathrow Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 15% on airfare.

Cheap Delta flights from St. Louis to Heathrow

Explore cheap flight options specifically provided by Delta for the route between St. Louis and Heathrow. 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 2,795,183 searches. Data last updated May 4, 2024.
Find some of the cheapest Delta flights traveling from St. Louis to London. Deals update often to give you more flight options matching your criteria
Sun 8/1812:00 pmSTL - LHR
1 stop18h 15mDelta
Tue 8/279:55 amLHR - STL
2 stops17h 22mDelta
Deal found 5/3$692
Wed 8/213:40 pmSTL - LHR
1 stop13h 30mDelta
Fri 8/3012:45 pmLHR - STL
1 stop16h 54mDelta
Deal found 5/3$697
Thu 8/2211:51 amSTL - LHR
1 stop12h 34mDelta
Wed 8/2812:45 pmLHR - STL
1 stop12h 29mDelta
Deal found 5/3$747
Tue 5/2110:20 amSTL - LHR
1 stop14h 55mDelta
Thu 5/3011:30 amLHR - STL
2 stops16h 22mDelta
Deal found 5/4$748
Tue 5/212:18 pmSTL - LHR
2 stops15h 57mDelta
Thu 5/306:15 amLHR - STL
2 stops16h 31mDelta
Deal found 5/4$752
Wed 8/142:20 pmSTL - LHR
1 stop13h 40mDelta
Thu 8/221:55 pmLHR - STL
1 stop12h 50mDelta
Deal found 5/3$754
Wed 9/411:51 amSTL - LHR
1 stop12h 34mDelta
Wed 9/189:00 amLHR - STL
2 stops18h 31mDelta
Deal found 5/3$765
Wed 9/410:00 amSTL - LHR
1 stop14h 25mDelta
Thu 9/2611:45 amLHR - STL
2 stops17h 50mDelta
Deal found 5/3$767
Wed 9/411:51 amSTL - LHR
2 stops16h 24mDelta
Wed 9/1811:30 amLHR - STL
2 stops16h 01mDelta
Deal found 5/4$770

Cheap United Airlines flights from St. Louis to Heathrow

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Heathrow. 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 2,795,183 searches. Data last updated May 4, 2024.
Take a gander at the lowest prices we've found on United Airlines flights from St. Louis to London. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Sun 8/185:03 pmSTL - LHR
1 stop12h 32mUnited Airlines
Tue 8/278:30 amLHR - STL
1 stop12h 51mUnited Airlines
Deal found 5/3$693
Tue 5/214:51 pmSTL - LHR
1 stop13h 29mUnited Airlines
Tue 5/288:30 amLHR - STL
1 stop12h 51mUnited Airlines
Deal found 5/4$750
Tue 9/106:15 amSTL - LHR
1 stop23h 20mUnited Airlines
Tue 9/176:00 pmLHR - STL
1 stop27h 20mUnited Airlines
Deal found 5/4$766
Tue 8/131:10 pmSTL - LHR
1 stop10h 45mUnited Airlines
Mon 8/191:40 pmLHR - STL
2 stops26h 27mUnited Airlines
Deal found 5/3$809
Sat 8/175:03 pmSTL - LHR
1 stop32h 37mUnited Airlines
Sun 8/2510:35 amLHR - STL
1 stop17h 38mUnited Airlines
Deal found 5/4$810
Wed 8/75:30 pmSTL - LHR
1 stop12h 15mUnited Airlines
Fri 8/168:30 amLHR - STL
1 stop11h 48mUnited Airlines
Deal found 5/3$899
Wed 9/2512:00 pmSTL - LHR
1 stop12h 30mUnited Airlines
Tue 10/19:30 amLHR - STL
1 stop34h 00mUnited Airlines
Deal found 5/3$980
Fri 8/95:03 pmSTL - LHR
1 stop12h 32mUnited Airlines
Sun 8/181:40 pmLHR - STL
1 stop14h 37mUnited Airlines
Deal found 5/3$999
Fri 5/315:25 pmSTL - LHR
1 stop11h 45mUnited Airlines
Fri 6/76:30 amLHR - STL
2 stops15h 09mUnited Airlines
Deal found 5/3$1,066

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

Find cheap flight options from St. Louis to Heathrow specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,795,183 searches. Prices were last updated on May 4, 2024.
Scroll through some of the best deals on flights from St. Louis to London in 2024. Check back soon for alternative fares.
Tue 5/216:11 amSTL - LHR
1 stop19h 04mDelta
Tue 5/2811:30 amLHR - STL
2 stops18h 10mDelta
Deal found 5/4$747
Tue 5/2110:20 amSTL - LHR
1 stop14h 55mDelta
Thu 5/3011:30 amLHR - STL
2 stops16h 22mDelta
Deal found 5/4$748
Tue 5/214:51 pmSTL - LHR
1 stop13h 29mUnited Airlines
Tue 5/288:30 amLHR - STL
1 stop12h 51mUnited Airlines
Deal found 5/4$750
Tue 5/212:18 pmSTL - LHR
2 stops15h 57mDelta
Thu 5/306:15 amLHR - STL
2 stops16h 31mDelta
Deal found 5/4$752
Wed 5/811:00 amSTL - LHR
1 stop17h 00mAir Canada
Wed 5/227:30 pmLHR - STL
2 stops30h 31mAir Canada
Deal found 5/4$756
Wed 5/86:00 amSTL - LHR
2 stops18h 30mAir Canada
Wed 5/227:30 pmLHR - STL
2 stops30h 31mAir Canada
Deal found 5/4$761
Mon 5/136:11 amSTL - LHR
1 stop19h 04mVirgin Atlantic
Sun 5/2611:30 amLHR - STL
2 stops16h 04mVirgin Atlantic
Deal found 5/3$798
Sat 5/182:43 pmSTL - LHR
1 stop33h 42mIberia
Mon 6/32:45 pmLHR - STL
1 stop13h 02mIberia
Deal found 5/2$799
Mon 5/132:00 pmSTL - LHR
1 stop11h 30mAmerican Airlines
Sun 5/263:15 pmLHR - STL
1 stop14h 07mAmerican Airlines
Deal found 5/3$801

St. Louis to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 4, 2024.
Scroll through some of the best deals on flights from St. Louis to London in 2024. Check back soon for alternative fares.
Tue 10/87:10 amSTL - LHR
2 stops30h 20mMultiple Airlines
Tue 10/226:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/3$632
Wed 9/2510:00 amSTL - LHR
2 stops27h 30mMultiple Airlines
Tue 10/16:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/3$641
Tue 9/1010:00 amSTL - LHR
2 stops29h 40mMultiple Airlines
Tue 9/176:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/4$642
Wed 9/1810:10 amSTL - LHR
2 stops23h 50mMultiple Airlines
Tue 9/246:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/3$665
Mon 9/162:05 pmSTL - LHR
2 stops25h 35mMultiple Airlines
Mon 9/236:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/3$671
Wed 9/410:10 amSTL - LHR
2 stops29h 10mMultiple Airlines
Wed 9/186:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/3$685
Sat 9/2111:51 amSTL - LHR
2 stops23h 49mMultiple Airlines
Wed 9/256:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/3$691
Sun 8/1812:00 pmSTL - LHR
1 stop18h 15mDelta
Tue 8/279:55 amLHR - STL
2 stops17h 22mDelta
Deal found 5/3$692
Sun 8/185:03 pmSTL - LHR
1 stop12h 32mUnited Airlines
Tue 8/278:30 amLHR - STL
1 stop12h 51mUnited Airlines
Deal found 5/3$693

St. Louis to Heathrow flights leaving soon

Find last-minute flight options from St. Louis to Heathrow 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 2,795,183 searches. Data last updated May 4, 2024.
Have a look at some of the last-minute flights available departing from St. Louis to London. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Mon 5/136:11 amSTL - LHR
1 stop19h 04mVirgin Atlantic
Sun 5/2611:30 amLHR - STL
2 stops16h 04mVirgin Atlantic
Deal found 5/3$798
Mon 5/132:00 pmSTL - LHR
1 stop11h 30mAmerican Airlines
Sun 5/263:15 pmLHR - STL
1 stop14h 07mAmerican Airlines
Deal found 5/3$801
Mon 5/1312:00 pmSTL - LHR
2 stops13h 05mVirgin Atlantic
Sun 5/2611:30 amLHR - STL
2 stops16h 04mVirgin Atlantic
Deal found 5/3$802
Sat 5/115:55 amSTL - LHR
1 stop10h 15mAmerican Airlines
Fri 5/1712:15 pmLHR - STL
1 stop13h 15mAmerican Airlines
Deal found 5/4$896
Sat 5/117:45 amSTL - LHR
1 stop18h 05mBritish Airways
Fri 5/177:35 pmLHR - STL
2 stops32h 10mBritish Airways
Deal found 5/4$964
Sat 5/119:50 amSTL - LHR
2 stops17h 05mMultiple Airlines
Fri 5/176:40 amLHR - STL
2 stops19h 21mMultiple Airlines
Deal found 5/4$998
Fri 5/105:08 pmSTL - LHR
1 stop13h 37mBritish Airways
Mon 5/138:10 pmLHR - STL
2 stops29h 36mBritish Airways
Deal found 5/3$1,167
Fri 5/104:20 pmSTL - LHR
1 stop13h 50mAmerican Airlines
Mon 5/139:15 amLHR - STL
1 stop16h 15mAmerican Airlines
Deal found 5/3$1,203
Fri 5/109:59 amSTL - LHR
2 stops14h 46mDelta
Mon 5/1311:30 amLHR - STL
2 stops16h 04mDelta
Deal found 5/3$1,204

One-way flights to Heathrow from St. Louis

Search for one-way flight options from St. Louis to Heathrow. 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 2,795,183 searches. Data last updated May 4, 2024.
Users in need of a one-way flight from St. Louis to London can choose from these deals. Users needing a return flight from St. Louis to London should utilize the search form above.
Fri 5/174:05 pmSTL - LHR
2 stops37h 55mMultiple Airlines
Deal found 5/3$419
Mon 7/224:45 pmSTL - LHR
3 stops21h 35mMultiple Airlines
Deal found 5/3$430
Mon 7/158:35 pmSTL - LHR
3 stops33h 20mMultiple Airlines
Deal found 5/3$432
Mon 7/87:00 amSTL - LHR
3 stops31h 20mMultiple Airlines
Deal found 5/3$447
Sun 7/1412:45 pmSTL - LHR
3 stops17h 10mMultiple Airlines
Deal found 5/3$455
Tue 7/1612:15 pmSTL - LHR
3 stops17h 40mMultiple Airlines
Deal found 5/3$468
Tue 6/47:23 pmSTL - LHR
3 stops44h 32mMultiple Airlines
Deal found 5/3$505
Sun 6/96:05 pmSTL - LHR
3 stops45h 30mMultiple Airlines
Deal found 5/3$510
Tue 6/117:29 pmSTL - LHR
3 stops44h 26mMultiple Airlines
Deal found 5/3$515

Find flights from St. Louis to Heathrow within your budget

Customize your flight search to find flights from St. Louis to Heathrow 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 2,795,183 searches. Data last updated May 4, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$632 - $905

Route

Depart

Return

Price

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Tue 10/8

2 stops30h 20m

London Heathrow

Tue 10/22

2 stops22h 55m

$632

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Sun 8/18

1 stop18h 15m

London Heathrow

Tue 8/27

2 stops17h 22m

$692

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Sun 8/18

1 stop12h 32m

London Heathrow

Tue 8/27

1 stop12h 51m

$693

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Wed 8/14

1 stop18h 45m

London Heathrow

Tue 8/20

2 stops15h 42m

$759

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Sun 9/15

1 stop15h 32m

London Heathrow

Thu 9/26

1 stop14h 05m

$768

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Tue 8/13

1 stop11h 58m

London Heathrow

Mon 8/19

2 stops29h 26m

$771

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Wed 9/18

1 stop14h 25m

London Heathrow

Tue 9/24

2 stops30h 30m

$789

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Sat 5/18

1 stop33h 42m

London Heathrow

Mon 6/3

1 stop13h 02m

$799

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Sun 7/7

1 stop22h 01m

London Heathrow

Fri 7/19

1 stop17h 49m

$905

Flights are sorted by cheapest first

Deals found on 5/3

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Heathrow. Price data was last updated on January 28, 2024.
To ensure you get the cheapest price possible for a flight from St. Louis to London Heathrow Airport, you should look to book at least 19 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.
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When is the cheapest time to fly from St. Louis to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Heathrow. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to London Heathrow Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday mornings 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 Heathrow by month

Plan your trip from St. Louis to Heathrow by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Heathrow is currently $465 while a round-trip flight costs $756. Price data was last updated on April 28, 2024.

Currently, November is the cheapest month in which you can book a flight from St. Louis to London Heathrow Airport (average of $653). Flying from St. Louis to London Heathrow Airport in June is currently the most expensive (average of $1,165). 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

$674

February

$663

March

$715

April

$692

May

$738

June

$1,165

July

$984

August

$777

September

$746

October

$711

November

$653

December

$672

Temperature and rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated May 4, 2024.
Get a feel of what it's like to fly with Delta, United Airlines and Virgin Atlantic from St. Louis to London by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,838 reviews
Check prices

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.1
Very good
10,838 reviews
Delta
8.1
Very good
10,838 reviews
Check prices

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,604 reviews
Delta
8.1
Very good
10,838 reviews
Check prices

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Finnair
7.8
Good
1,379 reviews
Delta
8.1
Very good
10,838 reviews
Check prices

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Virgin Atlantic
7.7
Good
742 reviews
Delta
8.1
Very good
10,838 reviews
Check prices

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.6
Good
1,786 reviews
Delta
8.1
Very good
10,838 reviews
Check prices

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Heathrow. 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 from for flights from St. Louis to London Heathrow?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to London Heathrow from St. Louis. Booking flights from Lambert-St Louis (STL) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 11 different airlines.

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

    Yes, there are multiple flights from St. Louis to London Heathrow Airport for under $700. The cheapest flight booked recently is on Multiple Airlines for just $632, but on average you can expect to pay $710.

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

    There are currently 10+ open flights from St. Louis to London Heathrow Airport within the next 7 days for less than $800.

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

    According to our current data, Delta ($692), United Airlines ($693), and Virgin Atlantic ($759) offers the cheapest pricing from St. Louis to London Heathrow Airport. Delta is 25% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $548. Users have also found prices from $571 and $579 on Iberia and Finnair, respectively.

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

    The most popular airlines flying from St. Louis to London Heathrow Airport are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

  • What does STL to LHR mean?

    This is defined as Lambert-St Louis Airport (STL) and London Heathrow Airport (LHR). Codes like London Heathrow Airport are often used to just call airports uniquely.

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

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

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

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

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

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

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

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

    Many airlines flying from St. Louis to Heathrow 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 St. Louis to Heathrow?

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

    The St. Louis to London Heathrow Airport flight deals you see on this page were last updated on 5/4.

See more FAQs

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

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Top 10 airlines flying from St. Louis to Heathrow

Discover the top 10 airlines that operate flights from St. Louis to Heathrow. 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 2,795,183 searches. Data last updated May 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$587Average$861FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest$620Average$791FlexibilityNo cancel feeOn-time77%
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