Question 1

How long does a flight from St. Louis to London Heathrow Airport take?

Accepted Answer

Direct flights from St. Louis generally make it to London Heathrow Airport in 8h 00m. The flying distance between the two cities is 4,186 miles.

Question 2

How many flights are there between St. Louis and London Heathrow Airport per day?

Accepted Answer

There is a maximum of 1 direct flight a day that takes off from St. Louis and lands in London Heathrow Airport, with an average flight time of 8h 00m. The most common departure time is 21:00 and most flights take off in the evening. Each week, there are 4 flights.

Question 3

What is the cheapest flight from St. Louis to London Heathrow Airport?

Accepted Answer

In the last 5 days, the lowest price for a flight from St. Louis to London Heathrow Airport was £245 for a one-way ticket and £529 for a return.

Question 4

What’s the cheapest day of the week to fly from St. Louis to London Heathrow Airport?

Accepted Answer

If your flying dates are flexible, you should consider flying to London Heathrow Airport on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from St. Louis to London Heathrow Airport. For your return ticket, we recommend flying on a Saturday and avoiding Sundays for the best deals.

Question 5

Which airports will I be using when flying from St. Louis to London Heathrow Airport?

Accepted Answer

On your way to London Heathrow Airport, you’ll fly out from Lambert-St Louis. You’ll be landing at London Heathrow.

Question 6

What’s the earliest departure time from St. Louis to London Heathrow Airport?

Accepted Answer

Early birds can take the earliest flight from St. Louis at 21:35 and will be landing in London Heathrow Airport at 11:35.

Question 7

What’s the latest departure time from St. Louis to London Heathrow Airport?

Accepted Answer

If you prefer to fly at night, the latest flight from St. Louis to London Heathrow Airport jets off at 21:40 and lands at 11:40.

Question 8

Which airlines offer Wi-Fi service onboard planes from St. Louis to London Heathrow Airport?

Accepted Answer

American Airlines, Lufthansa, and United Airlines offer inflight Wi-Fi service on the St. Louis to London Heathrow Airport flight route.

Question 9

Which aircraft models fly most regularly from St. Louis to London Heathrow Airport?

Accepted Answer

The Boeing 787-8 Dreamliner is the aircraft model that flies most regularly on the St. Louis to London Heathrow Airport flight route.

Question 10

Which airline alliances offer flights from St. Louis to London Heathrow Airport?

Accepted Answer

SkyTeam is the only airline alliance operating flights between St. Louis and London Heathrow Airport.

Question 11

On which days can I fly direct from St. Louis to London Heathrow Airport?

Accepted Answer

You can catch a direct flight from St. Louis to London Heathrow Airport on Tuesday, Wednesday, Friday, and Sunday.

Question 12

What is the cheapest month to fly from St. Louis to London Heathrow Airport?

Accepted Answer

The cheapest month for flights from St. Louis to London Heathrow Airport is October, where tickets cost £485 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £1,068 and £982 respectively.

Question 13

How does KAYAK find such low prices on flights from St. Louis to London Heathrow Airport?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to London Heathrow Airport.

Question 14

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to London Heathrow Airport?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from St. Louis is likely to change within 7 days, so travellers know whether to wait or book now.

Question 15

What is the Hacker Fare option on flights from St. Louis to London Heathrow Airport?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to St. Louis with another airline.

Question 16

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to London Heathrow Airport?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Question 17

What is the cheapest stopover airport when flying from St. Louis to London Heathrow Airport?

Accepted Answer

Flights via Frankfurt am Main (FRA) offer the most affordable fares, with an average price of £541 for a return.

Question 18

What is the most popular stopover airport when flying from St. Louis to London Heathrow Airport?

Accepted Answer

Chicago (ORD) is the top choice – 50% of KAYAK users who clicked on one-stop flights from St. Louis to London Heathrow Airport picked an itinerary connecting there.

Question 19

Which stopover airport has the quickest connection when flying from St. Louis to London Heathrow Airport?

Accepted Answer

If you prefer a quick connection, Frankfurt am Main (FRA) often has the shortest stopovers from St. Louis to London Heathrow Airport, with an average time of 1h 38m.

Question 20

Which stopover airport offers the shortest total travel time from St. Louis to London Heathrow Airport?

Accepted Answer

Consider flying via Chicago (ORD) for the shortest journey. The average one-way travel time for flights connecting there is 10h 36m.

Question 21

How often are flights from St. Louis to London delayed?

Accepted Answer

Weekly flights between St. Louis and London historically see delays in approximately 21% of cases, with the average delay over the past year being 114 minutes.

Question 22

Which airline has the best punctuality record on St. Louis to London flights?

Accepted Answer

Based on our data, British Airways have experienced the fewest delays on this route in the past 12 months, with only about 21% of their flights encountering any delays.

Question 23

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Statistically, Friday is the day of the week with the fewest delays on this flight route, while Wednesday has typically experienced more delays than other days.

Question 24

What is the most punctual flight time for St. Louis to London flights?

Accepted Answer

Typically, flights leaving at night tend to face fewer delays, whereas flights at night have historically encountered delays more often.

Question 25

Which cabin class options are there for flights between St. Louis and London Heathrow Airport?

Accepted Answer

There are 2 cabin class options for the route. These are Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 26

Which airlines provide the cheapest flights from St. Louis to London Heathrow Airport?

Accepted Answer

In the past 5 days, the cheapest return tickets from St. Louis to London Heathrow Airport were found on Finnair (£529) and Air Canada (£540).

Question 27

How far in advance should I book a flight from St. Louis to London Heathrow Airport?

Accepted Answer

To get a below average price on the flight from St. Louis to London Heathrow Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Question 28

Can I save money by flying with a stopover from St. Louis to London Heathrow Airport?

Accepted Answer

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £664 on average.

Question 29

How much is a return flight from St. Louis to London Heathrow Airport?

Accepted Answer

Flight prices are below average for this route right now.Flights to London Heathrow Airport from St. Louis usually cost between £588 and £853 in October.
The lowest price found in the past 5 days was £529 on Finnair (11 Oct–20 Oct).

Low season	January
High season	May
Cheapest flight	£245

STL - LHR

£245 Find Cheap Flights from St. Louis to London Heathrow Airport – Compare and Save

Everything you should know

Cheap Flights from St. Louis to Heathrow (STL-LHR)

Recent return flight deals from St. Louis to Heathrow

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KAYAK’s insights & trends for St. Louis to Heathrow flights

How much is a return flight from St. Louis to London Heathrow Airport?

What’s the cheapest day of the week to fly from St. Louis to London Heathrow Airport?

What is the cheapest month to fly from St. Louis to London Heathrow Airport?

Can I save money by flying with a stopover from St. Louis to London Heathrow Airport?

How far in advance should I book a flight from St. Louis to London Heathrow Airport?

Which airlines provide the cheapest flights from St. Louis to London Heathrow Airport?

How often are flights from St. Louis to London delayed?

What is the most punctual flight time for St. Louis to London flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on St. Louis to London flights?

What is the most popular stopover airport when flying from St. Louis to London Heathrow Airport?

What is the cheapest stopover airport when flying from St. Louis to London Heathrow Airport?

Which stopover airport offers the shortest total travel time from St. Louis to London Heathrow Airport?

Which stopover airport has the quickest connection when flying from St. Louis to London Heathrow Airport?

Which cabin class options are there for flights between St. Louis and London Heathrow Airport?

How long does a flight from St. Louis to London Heathrow Airport take?

What’s the earliest departure time from St. Louis to London Heathrow Airport?

What’s the latest departure time from St. Louis to London Heathrow Airport?

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