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Cheap flights from Lambert-St Louis Intl (STL) to Heathrow (LHR)

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The best prices from Lambert-St Louis Intl to Heathrow are usually found in February or April, booked 60 days in advance, depart on a Monday or Tuesday and return on a Wednesday

How to find the cheapest flight from
Lambert-St Louis Intl (STL) to Heathrow (LHR)

STL - LHR
Price
$645 - $1456
LHR
Temperature
46.4 - 75.2 °F
LHR
Rainfall
1.5 - 2.6 inches
Popular in June High demand for flights, 37% potential price rise
Cheapest in February Best time to find cheap flights, 30% potential price drop
Round-trip from $645 From Lambert-St Louis Intl to Heathrow
One-way from $449 One-way flight from Lambert-St Louis Intl to Heathrow
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Lambert-St Louis Intl to Heathrow?

Flights from Lambert-St Louis Intl to Heathrow are found to be more expensive on Wednesday. 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 Heathrow.

How far in advance should I book a flight from Lambert-St Louis Intl to Heathrow?

Find a great deal and save up to 38% by booking at least 51 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 Lambert-St Louis Intl to Heathrow within the next two weeks, with the cheapest ticket starting at $813.

What is the cheapest month to fly from Lambert-St Louis Intl to Heathrow?

Flights from Lambert-St Louis Intl to Heathrow lean towards being more expensive in June. Prices are generally better when you fly from Lambert-St Louis Intl to Heathrow in February, with the cheapest ticket starting at $394.

When is the cheapest time to fly from Lambert-St Louis Intl to Heathrow (STL - LHR)?

One of the essential ways to save on airfare from Lambert-St Louis Intl to Heathrow is to remain as flexible as possible. Flights that are in the noon tend to be the most expensive. If a flight is in the evening is possible it can save you up to 33% on airfare.

Cheap flights from Lambert-St Louis Intl to Heathrow in August, September 2020

The best prices found for STL to LHR flights for August, September
6 Aug - 10 Aug
$816pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
17 Aug - 2 Sep
$836pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
17 Aug - 2 Sep
$846pp
STL
Lambert-St Louis
Austrian Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Austrian Airlines
   
2 STOPS
STL
Lambert-St Louis

Lambert-St Louis Intl to Heathrow 2020 flight deals

Cheap flights to Heathrow from Lambert-St Louis Intl found for this year
6 Sep - 20 Sep
$622pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
8 Sep - 22 Sep
$663pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
15 Oct - 29 Oct
$774pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis

Last minute flights from Lambert-St Louis Intl to Heathrow

Late deals on round-trip flights to Heathrow from Lambert-St Louis Intl, departing today and this week
24 Jul - 26 Jul
$1124pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
24 Jul - 26 Jul
$1193pp
STL
Lambert-St Louis
Lufthansa
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
   
2 STOPS
STL
Lambert-St Louis
24 Jul - 26 Jul
$1361pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis

One-way flights to Heathrow from Lambert-St Louis Intl

The cheapest one-way flights from Lambert-St Louis Intl to Heathrow
3:00 am - 4:45 am
Major Airline
2 Stops
19h 45m
STL - LHR
Major Airline
$449
Flyus
10:15 am - 2:55 am
Lufthansa
1 Stop
10h 40m
STL - LHR
Lufthansa
$453
Fareboom
9:31 am - 4:00 am
Gulf Air
1 Stop
12h 29m
STL - LHR
Gulf Air
$571
Ovago

Related info for your journey

Useful info, stats and facts about Lambert-St Louis Intl to Heathrow flights.

Flight FAQs

From Lambert-St Louis Intl to Heathrow

Are flight prices decreasing from St Louis to Heathrow due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St Louis and Heathrow for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Lambert-St Louis Intl to Heathrow for under $700 on Cheapflights?

Yes, there are multiple flights from Lambert-St Louis Intl to Heathrow for under $700. The cheapest flight booked recently is on Multiple Airlines for just $622, but on average you can expect to pay $803.

Are there nonstop flights from Lambert-St Louis Intl to Heathrow for under $600 on Cheapflights?

There are no nonstop flights from Lambert-St Louis Intl to Heathrow, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Lambert-St Louis Intl to Heathrow for under $1200?

There are currently 20+ open flights from Lambert-St Louis Intl to Heathrow within the next 7 days for less than $1200.

Does it rain more in St Louis or Heathrow?

In St Louis, there will be same rainfall in St Louis compared to Heathrow over the next 12 days.

Is St Louis weather warmer or cooler than Heathrow?

Expect the weather to be around 90 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Heathrow is generally colder than in St Louis.

How long is the flight from Lambert-St Louis Intl to Heathrow?

Lufthansa, Austrian Airlines, and British Airways can get you from Lambert-St Louis Intl to Heathrow in just under 10h 10m. Your travel time can differ by up to 1h 41m. This flight may include one or multiple stops.

What are the cheapest airlines flying from Lambert-St Louis Intl to Heathrow round-trip?

Currently priced at $818, Austrian Airlines will fly you from Lambert-St Louis Intl to Heathrow and back. In addition to Austrian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and Lufthansa - these airlines can fly you to your destination from $822 and $826, respectively. These flights start at 11% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Lambert-St Louis Intl to Heathrow one-way?

The cheapest airline one-way is Lufthansa, with whom users have recently found tickets for as low as $414. However, be on the lookout for offers from Austrian Airlines and Major Airline, as they are both options that can get you from Lambert-St Louis Intl to Heathrow for a low price.

Alternative routes for Lambert-St Louis Intl to Heathrow

Destination information for Heathrow

Things to know before you go. Useful info for your trip from Lambert-St Louis Intl to Heathrow
Today's exchange rate
$1 = £0.77
Average temperature for August in Heathrow
75.2 °F
Avg rainfall for August in Heathrow
2.6 ″

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