Popular in | June |
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Cheapest in | February |
Round-trip from | $643 |
One-way from | $466 |
Flights from St. Louis to London Heathrow Airport are found to be more expensive on Friday. 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.
Find a great deal and save up to 50% by booking at least 10 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 $586.
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 $628.
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 16% on airfare.
Fly from
Fly to
Budget
$617 - $879
Route
Depart
Return
Price
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Tue 9/24
1 stop14h 36m
London Heathrow
Wed 10/2
2 stops14h 35m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Sat 10/12
1 stop30h 21m
London Heathrow
Tue 10/22
2 stops26h 02m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Tue 9/24
1 stop23h 20m
London Heathrow
Tue 10/1
1 stop32h 00m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Tue 9/24
1 stop12h 30m
London Heathrow
Wed 10/2
1 stop17h 35m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Wed 9/25
2 stops14h 00m
London Heathrow
Tue 10/8
2 stops20h 01m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Wed 10/2
1 stop12h 23m
London Heathrow
Mon 10/7
2 stops30h 36m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Wed 10/2
2 stops13h 43m
London Heathrow
Mon 10/7
2 stops16h 36m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Sat 8/24
1 stop31h 18m
London Heathrow
Sat 9/7
1 stop13h 35m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Wed 7/24
1 stop14h 17m
London Heathrow
Wed 7/31
1 stop13h 44m
LON Temperature | 39.2 - 62.6 °F |
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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).
Boarding
Entertainment
Comfort
Food
Overall
Crew
Reviews
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.
Boarding
Entertainment
Comfort
Food
Overall
Crew
Reviews
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.
Boarding
Entertainment
Comfort
Food
Overall
Crew
Reviews
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.
Boarding
Entertainment
Comfort
Food
Overall
Crew
Reviews
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.
Boarding
Entertainment
Comfort
Food
Overall
Crew
Reviews
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.
Boarding
Entertainment
Comfort
Food
Overall
Crew
Reviews
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.
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
United Airlines | Cheapest$587 | Average$843 | FlexibilityNo cancel fee | On-time69% |
Iberia | Cheapest$621 | Average$791 | FlexibilityNo cancel fee | On-time77% |
Finnair | Cheapest$643 | Average$840 | FlexibilityNo cancel fee | On-time76% |
British Airways | Cheapest$653 | Average$896 | FlexibilityNo cancel fee | On-time70% |
Virgin Atlantic | Cheapest$654 | Average$802 | FlexibilityNo cancel fee | On-time72% |
Delta | Cheapest$661 | Average$873 | FlexibilityNo cancel fee | On-timeN/A |
American Airlines | Cheapest$667 | Average$1,038 | FlexibilityNo cancel fee | On-time71% |
Lufthansa | Cheapest$685 | Average$1,259 | FlexibilityNo cancel fee | On-time76% |
KLM | Cheapest$688 | Average$821 | FlexibilityNo cancel fee | On-time75% |
Air Canada | Cheapest$703 | Average$1,062 | FlexibilityNo cancel fee | On-time67% |