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The cheapest time of year to fly to London Heathrow Airport from St. Louis is February. Most expensive is July
American Airlines, Brussels Airlines, and Finnair are the most popular carriers operating from St. Louis to London Heathrow Airport
23 days before
The cheapest time to buy a flight from St. Louis to London Heathrow Airport is approximately 23 days to departure
When traveling from St. Louis to London, the most popular airport to fly into is London Heathrow Airport. The majority of travelers flying into London Heathrow Airport from St. Louis are departing from Lambert-St Louis Airport. You may be looking for an airport near Lambert-St Louis Airport to depart from when traveling to London and Springfield Capital Airport, located in Springfield is a great option. The cheapest route from St. Louis to London is STL — LHR with an average price of $709 RT during the month of August.
|Juneyao Airlines||PriceFrom $15||Free Cancellation||Rating|
|Brussels Airlines||PriceFrom $351||Free Cancellation||Rating|
Boarding was a chaotic crowd push that was poorly managed. Once on board crew and all aspects of flight were excellent
1 / 10
|American Airlines||PriceFrom $381||Free Cancellation||Rating|
Power charge not working on my row. Could not use phone properly on trip during it. 35 minute taxiing upon arrival. 35 minute departure delay. 20 minute boarding delay.
1 / 10
|Virgin Atlantic||PriceFrom $430||Free Cancellation||Rating|
Long delay at LAX Seat had no armrest Food poor Short staffed so service on board limited. Very disappointed but at least our luggage arrived quickly as I had another flight to catch
1 / 10
|Finnair||PriceFrom $442||Free Cancellation||Rating|
I’m a bigger guy and I had wiggle room and could fully stretch my legs in economy plus. We were very happy with this flight.
1 / 10
|United Airlines||PriceFrom $524||Free Cancellation||Rating|
We traveled economy, which was comfortable. Monetization of seats and baggage is annoying.
1 / 10
|Iberia||PriceFrom $603||Free Cancellation||Rating|
They lost our suitcase
1 / 10
|KLM||PriceFrom $619||Free Cancellation||Rating|
Voir avis précédent qui regroupe les deux vols
1 / 10
|British Airways||PriceFrom $622||Free Cancellation||Rating|
The flight, plane and flight crew were great! The flight itself was not a problem at all. The HUGE issue was the mess at Heathrow airport. It was mass chaos, no direction or aisles for the connecting flights customers. Hundreds of people were trying to get through the boarding pass scanning to get to security. We were traveling with two children and after at least a 1/2 hour waiting on one side of the immigration hall, were told we had to move across the entire mass of people to another area. We stood there for another 1/2 hour without moving, then were told we had to move back to the first area because we had children! An employee looked at our boarding pass and told us we had missed the flight to go to the rebooking area. So we went there - stood for 1/2 hour again and then were told to go to a different area since we had children. We went to the next area - stood there for 45min, the employee looked at our boarding pass and told us the flight was delayed to go to the gate. SO we returned to the SAME ORIGINAL area, tried to explain to an employee we were told to go to that area. The employee became very upset and was rude, complaining that someone had moved the barrier? (We had not touched it - we were simply trying to follow directions) We finally made it to security after an hour wait, one of our bags had to be inspected. At this point we were resigned to missing the flight - we still had to get to Cgates in terminal 5. We did manage to make the flight. BUT someone needs to figure out the mass confusion in the immigration hall. If there are only a certain number of scanners available. perhaps indicating the lanes as soon as you enter the hall would be a solution?? Instead of having lines 50 people wide trying to funnel them down into 5-6 scanners? I understand staff shortages, short tempers, etc. I am not an airport export, but I imagine there are people that can determine a solution to this MAJOR problem at such a huge and busy airport. Surely determining a solution to better movement of customers would save rebooking costs, etc for the airlines.
1 / 10
|Air Canada||PriceFrom $636||Free Cancellation||Rating|
Routine. Went smoothly
1 / 10
To ease the stress of booking flights, some of our airline partners flying from Lambert-St Louis to London Heathrow are responding to the global pandemic. The following airlines may have a flexible cancellation policy to help accommodate travelers: American Airlines, British Airways, and United Airlines.
Lambert-St Louis and London Heathrow are 4185.8 mi apart from one another. By plane, this route typically takes 9h 57m.
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from St. Louis.
Flights from St. Louis to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
Once all potential St. Louis to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
Yes momondo offers price alerts on flights to London from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.