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$272+ Cheap flights from St. Louis (STL) to Heathrow (LHR)

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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LHR
Jul 31 — Aug 71
From?
To?
Wed 7/31
Wed 8/7
1 adult, Economy
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The best prices from Lambert-St Louis to London Heathrow are usually found in February or January, booked 34 days in advance, depart on a Thursday or Tuesday and return on a Wednesday

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 July 26, 2024.

Popular in

June

Cheapest in

February

Round-trip from

$585
(United Airlines)

One-way from

$272
(Kiwi.com)
High demand for flights, 37% potential price rise
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Best time to find cheap flights, 20% 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 Sunday. 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.

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 $625.

What is the cheapest time of day to fly from STL to 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 afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 15% on airfare.

Cheap St. Louis to Heathrow flights in July & August 2024

Find cheap flight options from St. Louis to Heathrow specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,751,780 searches. Prices were last updated on July 26, 2024.
Scroll through some of the best deals on flights from St. Louis to London in 2024. Check back soon for alternative fares.
This British Airways deal was found by Cheapflights users on 7/25. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/144:22 pmSTL - LHR
1 stop10h 38mBritish Airways
Thu 8/228:10 amLHR - STL
1 stop13h 22mBritish Airways
Deal found 7/25$682
This oojo deal was found by Cheapflights users on 7/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/136:00 amSTL - LHR
1 stop10h 10mBritish Airways
Tue 8/208:40 amLHR - STL
1 stop14h 37mBritish Airways
Deal found 7/25$686
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Fri 8/236:15 amSTL - LHR
1 stop23h 20mUnited Airlines
Fri 8/306:00 pmLHR - STL
1 stop27h 21mUnited Airlines
Deal found 7/24$692
This Booking.com deal was found by Cheapflights users on 7/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/244:05 pmSTL - LHR
1 stop32h 30mAir Canada
Sat 9/78:30 amLHR - STL
2 stops18h 35mAir Canada
Deal found 7/25$694
This KAYAK deal was found by Cheapflights users on 7/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/136:09 pmSTL - LHR
1 stop14h 16mBritish Airways
Mon 8/197:35 pmLHR - STL
2 stops29h 04mBritish Airways
Deal found 7/25$698
This CheapOair deal was found by Cheapflights users on 7/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/134:18 pmSTL - LHR
2 stops16h 12mBritish Airways
Mon 8/197:35 pmLHR - STL
2 stops27h 42mBritish Airways
Deal found 7/26$702
This Virgin Atlantic deal was found by Cheapflights users on 7/24. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/232:16 pmSTL - LHR
2 stops12h 39mVirgin Atlantic
Fri 8/3011:30 amLHR - STL
2 stops15h 06mVirgin Atlantic
Deal found 7/24$704
This Delta deal was found by Cheapflights users on 7/25. 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.
Wed 8/1411:29 amSTL - LHR
2 stops14h 11mDelta
Thu 8/226:30 amLHR - STL
2 stops16h 51mDelta
Deal found 7/25$707
This Delta deal was found by Cheapflights users on 7/25. 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.
Wed 8/1411:29 amSTL - LHR
2 stops14h 11mDelta
Thu 8/221:55 pmLHR - STL
1 stop13h 40mDelta
Deal found 7/25$712

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 2,751,780 searches. Data last updated July 26, 2024.
Scroll through some of the best deals on flights from St. Louis to London in 2024. Check back soon for alternative fares.
This United Airlines deal was found by Cheapflights users on 7/25. 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 10/149:50 amSTL - LHR
1 stop14h 40mUnited Airlines
Tue 10/222:05 pmLHR - STL
2 stops30h 43mUnited Airlines
Deal found 7/25$585
This Air Canada deal was found by Cheapflights users on 7/25. 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.
Tue 10/159:50 amSTL - LHR
1 stop14h 40mMultiple Airlines
Thu 10/318:55 amLHR - STL
2 stops35h 11mMultiple Airlines
Deal found 7/25$587
This Booking.com deal was found by Cheapflights users on 7/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/139:50 amSTL - LHR
1 stop14h 40mMultiple Airlines
Wed 10/237:25 amLHR - STL
2 stops38h 34mMultiple Airlines
Deal found 7/24$589
This United deal was found by Cheapflights users on 7/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/118:05 amSTL - LHR
1 stop21h 10mUnited Airlines
Thu 11/212:30 pmLHR - STL
2 stops32h 45mUnited Airlines
Deal found 7/25$590
This United deal was found by Cheapflights users on 7/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/99:50 amSTL - LHR
1 stop14h 40mUnited Airlines
Wed 10/236:00 pmLHR - STL
2 stops29h 11mUnited Airlines
Deal found 7/25$591
This Air Canada deal was found by Cheapflights users on 7/25. 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 11/113:50 pmSTL - LHR
2 stops33h 20mMultiple Airlines
Thu 11/216:00 amLHR - STL
2 stops39h 06mMultiple Airlines
Deal found 7/25$592
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/19:50 amSTL - LHR
1 stop14h 40mMultiple Airlines
Tue 10/87:30 pmLHR - STL
2 stops25h 50mMultiple Airlines
Deal found 7/25$595
This United deal was found by Cheapflights users on 7/26. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/256:15 amSTL - LHR
1 stop23h 20mUnited Airlines
Tue 10/812:05 pmLHR - STL
1 stop33h 15mUnited Airlines
Deal found 7/26$596
This JustFly deal was found by Cheapflights users on 7/26. 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 JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/99:50 amSTL - LHR
1 stop14h 40mAir Canada
Wed 10/239:30 amLHR - STL
1 stop17h 35mAir Canada
Deal found 7/26$597

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 2,751,780 searches. Data last updated July 26, 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.
This KAYAK deal was found by Cheapflights users on 7/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/26:04 amSTL - LHR
1 stop10h 06mBritish Airways
Mon 8/197:35 pmLHR - STL
2 stops29h 04mBritish Airways
Deal found 7/25$772
This Expedia deal was found by Cheapflights users on 7/25. 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.
Fri 8/26:04 amSTL - LHR
1 stop10h 06mBritish Airways
Mon 8/192:45 pmLHR - STL
1 stop13h 32mBritish Airways
Deal found 7/25$816
This Iberia deal was found by Cheapflights users on 7/25. 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.
Thu 8/15:30 pmSTL - LHR
1 stop13h 15mIberia
Sat 8/316:15 amLHR - STL
2 stops17h 32mIberia
Deal found 7/25$893
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 8/15:03 pmSTL - LHR
1 stop32h 37mUnited Airlines
Sat 8/313:50 pmLHR - STL
1 stop29h 31mUnited Airlines
Deal found 7/25$896
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Fri 8/911:30 amSTL - LHR
1 stop16h 30mUnited Airlines
Fri 8/1610:15 amLHR - STL
2 stops32h 34mUnited Airlines
Deal found 7/26$961
This British Airways deal was found by Cheapflights users on 7/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/96:19 pmSTL - LHR
1 stop10h 21mBritish Airways
Fri 8/168:10 amLHR - STL
1 stop13h 22mBritish Airways
Deal found 7/26$978
This JustFly deal was found by Cheapflights users on 7/25. 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 JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/210:10 amSTL - LHR
2 stops14h 20mAir Canada
Mon 8/198:30 amLHR - STL
2 stops18h 35mAir Canada
Deal found 7/25$1,017
This Travelocity deal was found by Cheapflights users on 7/25. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/56:04 amSTL - LHR
1 stop10h 06mBritish Airways
Mon 8/126:15 pmLHR - STL
2 stops29h 02mBritish Airways
Deal found 7/25$1,093
This United deal was found by Cheapflights users on 7/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/318:58 amSTL - LHR
1 stop20h 37mMultiple Airlines
Wed 8/79:30 amLHR - STL
1 stop17h 35mMultiple Airlines
Deal found 7/24$1,095

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 2,751,780 searches. Data last updated July 26, 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.
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 10/167:57 amSTL - LHR
2 stops30h 23mMultiple Airlines
Deal found 7/25$272
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/38:12 amSTL - LHR
3 stops30h 08mMultiple Airlines
Deal found 7/24$338
This CrystalTravel deal was found by Cheapflights users on 7/25. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/165:19 pmSTL - LHR
1 stop13h 56mVirgin Atlantic
Deal found 7/25$359
This mytrip.com deal was found by Cheapflights users on 7/26. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/79:50 amSTL - LHR
1 stop14h 40mAir Canada
Deal found 7/26$377
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/141:48 pmSTL - LHR
3 stops50h 47mMultiple Airlines
Deal found 7/25$398
This JustFly deal was found by Cheapflights users on 7/25. 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 JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/119:50 amSTL - LHR
1 stop14h 40mAir Canada
Deal found 7/25$412
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 10/1612:15 pmSTL - LHR
3 stops24h 35mMultiple Airlines
Deal found 7/25$413
This KLM deal was found by Cheapflights users on 7/24. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/312:43 pmSTL - LHR
1 stop11h 42mKLM
Deal found 7/24$416
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Sun 8/116:19 pmSTL - LHR
3 stops58h 01mMultiple Airlines
Deal found 7/25$447

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 2,751,780 searches. Data last updated July 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$585 - $697

Route

Depart

Return

Price

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Mon 10/14

1 stop14h 40m

London Heathrow

Tue 10/22

2 stops30h 43m

$585

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Tue 10/15

1 stop14h 40m

London Heathrow

Thu 10/31

2 stops35h 11m

$587

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Sun 10/13

1 stop14h 40m

London Heathrow

Wed 10/23

2 stops38h 34m

$589

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Wed 10/9

1 stop14h 40m

London Heathrow

Wed 10/23

1 stop17h 35m

$597

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Mon 9/9

1 stop12h 53m

London Heathrow

Thu 9/19

2 stops17h 11m

$629

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Tue 9/17

1 stop10h 10m

London Heathrow

Tue 9/24

1 stop11h 54m

$647

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Tue 12/17

1 stop18h 35m

London Heathrow

Tue 12/24

2 stops15h 51m

$652

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Fri 12/6

1 stop14h 40m

London Heathrow

Wed 12/18

2 stops17h 51m

$657

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

Sun 9/1

1 stop14h 23m

London Heathrow

Sun 9/15

1 stop12h 44m

$697

Flights are sorted by cheapest first

Deals found on 7/25

How far ahead should I 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 July 25, 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 34 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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What is the cheapest day 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 July 21, 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. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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Best time to book a flight from St. Louis to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from St. Louis with our price prediction graph.
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.

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

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 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 July 26, 2024.
Get a feel of what it's like to fly with British Airways, Air Canada and Delta 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
8.0
Very good
9,615 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Delta
8.0
Very good
9,615 reviews
Delta
8.0
Very good
9,615 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

KLM
7.9
Good
1,416 reviews
Delta
8.0
Very good
9,615 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Virgin Atlantic
7.6
Good
705 reviews
Delta
8.0
Very good
9,615 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

United Airlines
7.4
Good
10,000 reviews
Delta
8.0
Very good
9,615 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

American Airlines
7.3
Good
10,000 reviews
Delta
8.0
Very good
9,615 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

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 $600 on Cheapflights?

    Yes, there are multiple flights from St. Louis to London Heathrow Airport for under $600. The cheapest flight booked recently is on United Airlines for just $585, but on average you can expect to pay $603.

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

    There are currently 20+ 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, United Airlines ($585), Air Canada ($597), and Iberia ($629) offers the cheapest pricing from St. Louis to London Heathrow Airport. United Airlines is 34% 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 Virgin Atlantic. According to our data, you can fly for as low as $359. Users have also found prices from $377 and $416 on Air Canada and KLM, respectively.

  • 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 7/26.

  • 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 is the cheapest month to book a flight from St. Louis to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to London Heathrow Airport (average of $652). Flying from St. Louis to London Heathrow Airport in June is currently the most expensive (average of $1,095). 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.

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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 2,751,780 searches. Data last updated July 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$587Average$842FlexibilityNo cancel feeOn-time69%
IberiaCheapest$620Average$776FlexibilityNo cancel feeOn-time77%
FinnairCheapest$643Average$840FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$653Average$937FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$654Average$793FlexibilityNo cancel feeOn-time72%
DeltaCheapest$660Average$858FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$667Average$1,007FlexibilityNo cancel feeOn-time71%
KLMCheapest$687Average$975FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$707Average$1,015FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$729Average$1,241FlexibilityNo cancel feeOn-time76%
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Search flights from St. Louis to Heathrow by cabin class

Find flights from St. Louis to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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