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Cheap flights from St Louis (STL) to London (LON)

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The best prices from St Louis to London are usually found in September or October, booked 54 days in advance, depart on a Tuesday or Wednesday and return on a Friday

How to find the cheapest flight from
St Louis (STL) to London (LON)

STL - LON
Price
$768 - $1,217
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches

Popular in

December

High demand for flights, 22% potential price rise

Cheapest in

September

Best time to find cheap flights, 19% potential price drop

Average price

$859

Average for round-trip flights in January 2021

Round-trip from

$768

From St Louis to London

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 St Louis to London?

Thursday flights are found to be more expensive to fly from St Louis to London. 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.

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

To save up to 44% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from St Louis to London from $910 1-2 weeks out and tickets from $1,146 for flights departing within the next 72 hours.

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

October can be a great time to fly to London from St Louis with a flight ticket averaging about $714. Cheapflights users have found deals in the month of October for as cheap as $445. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from St Louis to London (STL - LON)?

A simple way to save on the total cost of your ticket is to fly from St Louis to London in the evening. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the afternoon.

Cheap flights from St Louis to London in January, February 2021

21 Feb - 28 Feb
$664pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
21 Feb - 28 Feb
$681pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
21 Feb - 28 Feb
$690pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis

St Louis to London 2021 flight deals

21 Feb - 28 Feb
$664pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
21 Feb - 28 Feb
$681pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
21 Feb - 28 Feb
$690pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis

Last minute flights from St Louis to London

1 Feb - 18 Feb
$824pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
1 Feb - 18 Feb
$903pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
2 Feb - 16 Feb
$933pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis

Related info for your journey

Flight FAQs

From St Louis to London

Are flight prices decreasing from St Louis to London 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 London 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.

What safety measures are being taken by airlines flying from Lambert-St Louis to London to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Delta is one of them. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from Lambert-St Louis to London. Policies will vary by airline.

Which airlines flying from Lambert-St Louis to London have flexible cancellations due to COVID-19?

Some of our airline partners flying from Lambert-St Louis to London have new flexible policies in place due to COVID-19. American Airlines, United Airlines, and British Airways are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

Can I find flights from St Louis to London for under $700 on Cheapflights?

Yes, there are multiple flights from St Louis to London for under $700. The cheapest flight booked recently is on Multiple Airlines for just $664, but on average you can expect to pay $755.

Are there nonstop flights from St Louis to London for under $700 on Cheapflights?

There are no nonstop flights from St Louis to London, 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 St Louis to London for under $900?

There are currently 18+ open flights from St Louis to London within the next 7 days for less than $900.

Is St Louis weather warmer or cooler than London?

Our data indicates that the weather will be 90 °F on average in the month of July. The temperature in London is typically colder than in St Louis. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from St Louis to London?

Departing from St Louis to London will take you 10h 55m. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from St Louis to London round-trip?

According to our current data, British Airways ($713), Virgin Atlantic ($772), and Lufthansa ($811) offers the cheapest pricing from St Louis to London. Users have found that British Airways is 24% cheaper than the other options available to this destination.

Alternative routes for St Louis to London

Destination information for London

Today's exchange rate
$1 = £0.74
Average temperature for January in London
48.2 °F
Avg rainfall for January in London
2.0 ″

Airports servicing St. Louis

Airports servicing London

Gatwick (LGW)
City (LCY)
Stansted (STN)
Luton (LTN)
Southend (SEN)

Top 10 airlines flying from St Louis to London

Airline Cheapest Average Flexibility On-time COVID-19 safety
Brussels Airlines
$351 $627 No cancel fee N/A
Iberia
$433 $728 No cancel fee 77%
Finnair
$395 $836 No cancel fee 76%
United Airlines
$263 $869 No cancel fee 69%
Virgin Atlantic
$603 $893 No cancel fee 72%
KLM
$658 $905 No cancel fee 75%
British Airways
$383 $1,067 No cancel fee 70%
Air Canada
$620 $1,104 No cancel fee 67%
Delta
$691 $1,105 No cancel fee N/A
American Airlines
$360 $1,162 No cancel fee 71%
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