Popular in | June |
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Cheapest in | February |
Average price | £804 |
Round-trip from | £68 |
Tuesday is generally a great day to depart. Flying on this day could help you save up to 28%.
Users have found that booking a flight from St. Louis to London Heathrow Airport at least 10 days early can save you up to 50% on average compared to booking a flight this week. If booking 10 days before your flight isn’t an option for you, users have found flights from St. Louis to London Heathrow Airport for as little as £461 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £738 for flights departing within the next 3 days.
Our data shows that February tends to be the cheapest month to fly to London Heathrow Airport from St. Louis. Users have commonly found prices around £731 for the month, but tickets can be as low as £489. Due to multiple factors, prepare for potentially higher prices in June.
Unlike in the morning, when flights are generally more expensive, you can save up to 5% on flights from St. Louis to London Heathrow Airport by exploring options for tickets in the afternoon.
Fly from
Fly to
Budget
£495 - £653
Route
Depart
Return
Price
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Sun 27/10
1 stop12h 21m
London Heathrow
Thu 7/11
2 stops21h 11m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Tue 1/10
1 stop23h 20m
London Heathrow
Tue 8/10
1 stop27h 20m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Wed 25/9
1 stop16h 00m
London Heathrow
Tue 8/10
1 stop17h 35m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Wed 25/9
2 stops14h 20m
London Heathrow
Tue 1/10
1 stop13h 00m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Tue 29/10
1 stop15h 00m
London Heathrow
Tue 5/11
1 stop17h 32m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Sat 5/10
1 stop21h 56m
London Heathrow
Sun 13/10
1 stop13h 17m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Sun 1/9
2 stops14h 42m
London Heathrow
Fri 11/10
2 stops15h 41m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Tue 10/9
2 stops15h 55m
London Heathrow
Tue 17/9
2 stops17h 12m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Fri 1/11
1 stop12h 00m
London Heathrow
Fri 8/11
1 stop13h 25m
LON Temperature | 4 - 17 °C |
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Entertainment
Comfort
Food
Boarding
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.
Entertainment
Comfort
Food
Boarding
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.
Entertainment
Comfort
Food
Boarding
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.
Entertainment
Comfort
Food
Boarding
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.
Entertainment
Comfort
Food
Boarding
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.
Entertainment
Comfort
Food
Boarding
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.
Cheapflights helps you search for flights from St. Louis to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. Louis to Heathrow.
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