$464+ Cheap flights from Heathrow (LHR) to St. Louis (STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — STL
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Heathrow to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from London Heathrow to Lambert-St Louis are usually found in February or November, booked 71 days in advance, depart on a Monday or Wednesday and return on a Thursday
Cheap flight deals from Heathrow to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Heathrow to St. LouisExplore the most affordable flight options available from Heathrow to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from Heathrow to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:40 am -
2 stops23h 16m
Wed 11/252:31 pm -
2 stops19h 29m
Deal found 10/21![Scandinavian Airlines logo]()
$831
This Scandinavian Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:40 pm -
2 stops33h 02m
Mon 11/162:31 pm -
2 stops21h 59m
Deal found 10/20![Scandinavian Airlines logo]()
$838
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/112:15 pm -
3 stops28h 55m
Fri 12/47:58 pm -
3 stops32h 52m
Deal found 10/21![Multiple Airlines logo]()
$845
This Globehunters deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:30 am -
1 stop13h 15m
Tue 12/151:18 pm -
1 stop12h 37m
Deal found 10/24![Lufthansa logo]()
$854
This Mytrip deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/912:15 pm -
2 stops17h 57m
Wed 12/167:54 pm -
3 stops32h 56m
Deal found 10/24![Multiple Airlines logo]()
$865
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:00 am -
2 stops16h 26m
Thu 12/108:02 am -
1 stop15h 53m
Deal found 10/20![United Airlines logo]()
$866
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:30 am -
1 stop13h 15m
Wed 11/253:40 pm -
1 stop19h 10m
Deal found 10/21![Lufthansa logo]()
$868
This Expedia deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:30 pm -
1 stop24h 15m
Thu 12/101:18 pm -
1 stop10h 37m
Deal found 10/20![Lufthansa logo]()
$879
This Scandinavian Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:40 am -
2 stops23h 14m
Wed 11/1112:29 pm -
2 stops24h 01m
Deal found 10/24![Scandinavian Airlines logo]()
$883
Best flights from Heathrow to St. LouisDiscover carefully curated flight deals from Heathrow to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Heathrow to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:40 pm -
2 stops33h 02m
Mon 11/162:31 pm -
2 stops21h 59m
Deal found 10/22![Scandinavian Airlines logo]()
$839
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:00 am -
2 stops16h 26m
Thu 12/108:02 am -
1 stop15h 53m
Deal found 10/20![United Airlines logo]()
$866
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/78:40 am -
2 stops17h 52m
Wed 12/236:00 am -
1 stop18h 25m
Deal found 10/21![Delta logo]()
$938
This Lufthansa deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:30 am -
1 stop13h 15m
Wed 12/161:18 pm -
1 stop10h 37m
Deal found 10/24![Multiple Airlines logo]()
$944
This Scandinavian Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:40 am -
2 stops23h 14m
Wed 11/1112:29 pm -
2 stops24h 01m
Deal found 10/24![Scandinavian Airlines logo]()
$883
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/111:10 am -
2 stops16h 02m
Tue 3/304:17 pm -
1 stop13h 18m
Deal found 10/21![United Airlines logo]()
$914
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:45 am -
2 stops18h 11m
Sun 11/2910:20 am -
2 stops14h 05m
Deal found 10/24![Delta logo]()
$1,026
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/710:25 am -
1 stop13h 51m
Tue 12/159:40 am -
1 stop14h 15m
Deal found 10/24![United Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/59:00 am -
2 stops16h 26m
Sat 12/123:25 pm -
1 stop10h 30m
Deal found 10/21![United Airlines logo]()
$975
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/157:40 am -
1 stop13h 01m
Thu 12/246:15 am -
1 stop22h 00m
Deal found 10/23![United Airlines logo]()
$1,024
Last-minute flights from Heathrow to St. LouisDiscover last-minute flight deals from Heathrow to St. Louis. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Heathrow to St. Louis. Data last updated October 25, 2026 and is based on user searches.
This Scandinavian Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:40 am -
2 stops23h 14m
Wed 11/1112:29 pm -
2 stops24h 01m
Deal found 10/24![Scandinavian Airlines logo]()
$883
This Scandinavian Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:40 pm -
2 stops33h 02m
Mon 11/162:31 pm -
2 stops21h 59m
Deal found 10/20![Scandinavian Airlines logo]()
$838
This Scandinavian Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:40 am -
2 stops23h 16m
Wed 11/252:31 pm -
2 stops19h 29m
Deal found 10/21![Scandinavian Airlines logo]()
$831
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:30 am -
1 stop13h 15m
Wed 11/253:40 pm -
1 stop19h 10m
Deal found 10/21![Lufthansa logo]()
$868
This lastminute.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:20 am -
2 stops17h 21m
Tue 12/82:17 pm -
2 stops13h 38m
Deal found 10/21![Virgin Atlantic logo]()
$889
This Expedia deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/231:30 pm -
2 stops15h 54m
Tue 12/81:18 pm -
1 stop10h 37m
Deal found 10/20![Lufthansa logo]()
$901
This Air Canada deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:00 am -
2 stops39h 26m
Tue 12/84:05 pm -
2 stops14h 55m
Deal found 10/21![Multiple Airlines logo]()
$902
This Lufthansa deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:30 am -
1 stop13h 15m
Thu 12/311:05 am -
1 stop13h 15m
Deal found 10/24![Multiple Airlines logo]()
$898
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:10 am -
2 stops16h 30m
Wed 12/21:18 pm -
1 stop10h 37m
Deal found 10/24![United Airlines logo]()
$903
One-way flights from Heathrow to St. LouisSearch for one-way flight options from Heathrow to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Heathrow to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/93:15 pm -
3 stops50h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$464
This deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/151:35 pm -
1 stop15h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1512:15 pm -
3 stops29h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$554
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:30 am -
1 stop13h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Lufthansa logo]()
$561
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/206:30 am -
1 stop12h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Lufthansa logo]()
$576
This Iberia deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/206:15 am -
2 stops19h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Iberia logo]()
$605
Find 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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $831 (Scandinavian Airlines) |
One-way from | $464 (Kiwi.com) |
Popular in | August |
Cheapest in | February |
Average price | $928 |
Good one-way deal | $861 or less |
Cheapflights Fare Finder
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 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
LondonSt. Louis
LHR London Heathrow - STL Lambert-St Louis
LHRSTL
London Heathrow
Fri 3/12
6:30 am-1:45 pm
1 stop13h 15m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$622
LondonSt. Louis
LHR London Heathrow - STL Lambert-St Louis
LHRSTL
London Heathrow
Sat 2/27
7:30 pm-1:45 pm
1 stop24h 15m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$640
LondonSt. Louis
LHR London Heathrow - STL Lambert-St Louis
LHRSTL
London Heathrow
Sat 3/13
6:35 am-9:13 pm
2 stops20h 38m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$643
LondonSt. Louis
LHR London Heathrow - STL Lambert-St Louis
LHRSTL
London Heathrow
Thu 11/12
8:15 am-11:19 am
3 stops33h 04m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$651
LondonSt. Louis
LHR London Heathrow - STL Lambert-St Louis
LHRSTL
London Heathrow
Wed 4/7
7:30 am-11:46 pm
2 stops22h 16m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$676
LondonSt. Louis
LHR London Heathrow - STL Lambert-St Louis
LHRSTL
London Heathrow
Sun 3/21
6:00 pm-3:26 pm
1 stop26h 26m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$795
LondonSt. Louis
LHR London Heathrow - STL Lambert-St Louis
LHRSTL
London Heathrow
Fri 1/15
8:15 am-11:04 am
3 stops32h 49m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$823
LondonSt. Louis
LHR London Heathrow - STL Lambert-St Louis
LHRSTL
London Heathrow
Thu 11/12
6:40 pm-9:42 pm
2 stops33h 02m
Lambert-St Louis
Mon 11/16
2:31 pm-6:30 pm
2 stops21h 59m
$839
LondonSt. Louis
LHR London Heathrow - STL Lambert-St Louis
LHRSTL
London Heathrow
Tue 12/1
9:00 am-7:26 pm
2 stops16h 26m
Lambert-St Louis
Thu 12/10
8:02 am-5:55 am
1 stop15h 53m
$866
LondonSt. Louis
LHR London Heathrow - STL Lambert-St Louis
LHRSTL
London Heathrow
Fri 11/6
6:40 am-11:54 pm
2 stops23h 14m
Lambert-St Louis
Wed 11/11
12:29 pm-6:30 pm
2 stops24h 01m
$883
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Heathrow to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to St. Louis in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on London Heathrow Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on London Heathrow Airport-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Heathrow to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Heathrow with our price prediction graph.
LHR-STL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to St. Louis
Prices
Delays
How far ahead should I book a flight from London Heathrow Airport to St. Louis?
The best time to book flights from London Heathrow Airport to St. Louis is 70 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.
What is the cheapest month to book a flight from London Heathrow Airport to St. Louis?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to St. Louis (average of $722). Flying from London Heathrow Airport to St. Louis in August is currently the most expensive (average of $1,460). 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.
What is the cheapest time of day to fly from LHR to STL?
Find hourly flight availability from Heathrow to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 25, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to St. Louis as you normally would.
How often are flights from London to St. Louis delayed?
About 15% of weekly flights between London and St. Louis have experienced delays in the past year, with the average delay time being 110 minutes.
What is the most punctual flight time for London to St. Louis flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to St. Louis flights?
Over the last year, British Airways have had the lowest number of delays on this route, with just 15% of flights being delayed.
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 October 25, 2026.
Peruse reviews from past customers who have flown with United Airlines,American Airlines, andBritish Airways from London Heathrow Airport 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.
Food
6.7
Entertainment
7.1
Overall
7.3
Crew
8.1
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Food
6.7
Entertainment
7.1
Overall
7.3
Crew
8.1
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Food
6.7
Entertainment
7.1
Overall
7.3
Crew
8.1
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Food
6.7
Entertainment
7.1
Overall
7.3
Crew
8.1
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Collinsville
Edwardsville
Glencoe
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Heathrow and St. Louis flights
Browse other Heathrow and St. Louis flight options. Last updated on October 25, 2026.
Other flights from Heathrow
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
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Other flights to St. Louis
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Top 3 airlines flying from Heathrow to St. Louis
Discover the top 3 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 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$654 | Average$857 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$791 | Average$1,044 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$803 | Average$1,384 | FlexibilityNo cancel fee | On-time71% |