Cheap flights from Heathrow to St. Louis

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How to find the cheapest flight from
Heathrow (LHR) to St. Louis (STL)

All the information you need to plan the best LHR to STL flight in 2021: compare Heathrow to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.
LHR - STL
Price
£574 - £978
STL
Temperature
0 - 27 °C
STL
Precipitation
56 - 119 mm

Popular in

August

High demand for flights, 22% potential price rise

Cheapest in

February

Best time to find cheap flights, 25% potential price drop

Round-trip from

£416

From London Heathrow to Lambert-St Louis

One-way from

£404

One-way flight from London Heathrow to Lambert-St Louis

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from London Heathrow Airport to St. Louis?

Travellers have found it’s best to book a flight 57 days in advance to save up to 14% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 57 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to St. Louis 1-2 weeks in advance for as low as £613, or £657 for flights within the next 24 hours.

When is the cheapest time to fly from London Heathrow Airport to St. Louis (LHR - STL)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to St. Louis as you normally would.

Cheap flights from Heathrow to St. Louis in October, November 2021

The best prices found for LHR to STL flights in October, November
22 Nov - 17 Dec
£459pp
LHR
London Heathrow
Virgin Atlantic
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Virgin Atlantic
 
1 STOP
LHR
London Heathrow
22 Nov - 17 Dec
£465pp
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Virgin Atlantic
 
1 STOP
LHR
London Heathrow
16 Nov - 30 Nov
£479pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
LHR
London Heathrow

London Heathrow to St. Louis 2021 flight deals

Cheap flights to St. Louis from Heathrow found for this year
15 Dec - 5 Jan
£406pp
LHR
London Heathrow
Virgin Atlantic
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Virgin Atlantic
 
1 STOP
LHR
London Heathrow
15 Dec - 5 Jan
£411pp
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Virgin Atlantic
 
1 STOP
LHR
London Heathrow
22 Nov - 17 Dec
£459pp
LHR
London Heathrow
Virgin Atlantic
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Virgin Atlantic
 
1 STOP
LHR
London Heathrow

Last-minute flights from Heathrow to St. Louis

Late deals on return flights to St. Louis from Heathrow, departing today and this week
30 Oct - 1 Nov
£570pp
LHR
London Heathrow
Multiple airlines
     
3 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
29 Oct - 1 Nov
£573pp
LHR
London Heathrow
Finnair
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Finnair
 
1 STOP
LHR
London Heathrow
29 Oct - 1 Nov
£596pp
LHR
London Heathrow
Virgin Atlantic
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Virgin Atlantic
   
2 STOPS
LHR
London Heathrow

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

The cheapest one-way flights from Heathrow to St. Louis
09:15 - 10:38
Multiple Airlines
1 stop
31h 23m
LHR - STL
Multiple Airlines
£404
Combigo
11:35 - 07:46
Multiple Airlines
1 stop
26h 11m
LHR - STL
Multiple Airlines
£443
Combigo
07:05 - 19:04
Multiple Airlines
1 stop
17h 59m
LHR - STL
Multiple Airlines
£451
Combigo

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Heathrow</span> to <span class="emphasized">St. Louis</span> flights.

Flight FAQs

From Heathrow to St. Louis

What airport do you fly into for flights to St. Louis from London Heathrow?

For a flight from London Heathrow to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the centre vof the city. Lambert-St Louis is the only St. Louis airport and it handles 0 inbound flights from London Heathrow per day. 8 airlines have flights to Lambert-St Louis from London Heathrow on a regular basis.

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

Some of the carriers operating flights from London Heathrow to Lambert-St Louis that may be offering flexible cancellation policies are Finnair, American Airlines, and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from London Heathrow Airport to St. Louis for under £500 on Cheapflights?

Yes, there are multiple flights from London Heathrow Airport to St. Louis for under £500. The cheapest flight booked recently is on Virgin Atlantic for just £406, but on average you can expect to pay £500.

Are there last-minute flights available from London Heathrow Airport to St. Louis for under £600?

There are currently 8+ open flights from London Heathrow Airport to St. Louis within the next 7 days for less than £600.

What are the cheapest airlines flying from London Heathrow Airport to St. Louis return?

Cheapflights users have booked flights from London Heathrow Airport to St. Louis from £406 return. Other airlines that can offer you cheap pricing are American Airlines, from £537, and Finnair, from £539. Virgin Atlantic is priced at 26% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest flights from London Heathrow Airport to St. Louis?

While on average a flight from London Heathrow Airport to St. Louis is generally £1,129, our data shows the cheapest flight currently is £405. When looking at the most popular route, (London Heathrow - Lambert-St Louis), you can expect to pay £406 for that flight.

What are the most popular airlines that fly from London Heathrow Airport to St. Louis?

Before booking your flight from London Heathrow Airport to St. Louis, check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

Related searches

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COVID Restrictions

View COVID Travel Restrictions for St. Louis, MO

Do I need a COVID test to fly to St. Louis from Heathrow?

Information is based on travel restrictions from London Heathrow to Lambert-St Louis

Most visitors from London Heathrow will not be allowed to enter Lambert-St Louis.

COVID-19 testing requirements
Visitors from London Heathrow must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from London Heathrow are not required to quarantine after entering Lambert-St Louis.

Do I need a test to fly back to Heathrow from St. Louis?

Returning to London Heathrow from Lambert-St Louis

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to London Heathrow.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering London Heathrow.

Hide COVID Travel Restrictions for St. Louis, MO

Alternative routes for Heathrow to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for St. Louis

Things to know before you go - useful duration and weather info for your trip from Heathrow to St. Louis.
Today's exchange rate
£1 = $1.39
Average temperature for October in St. Louis
22.0 °C
Avg rainfall for October in St. Louis
71.0 mm

Airports servicing London

Airports servicing St. Louis

Top 7 airlines flying from London Heathrow to Lambert-St Louis

The chart below displays the airlines Cheapflights users travelling from Heathrow to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Iberia
£327 £497 No cancel fee 77%
Search Iberia flights
British Airways
£344 £741 No cancel fee 70%
Search British Airways flights
American Airlines
£356 £540 No cancel fee 71%
Search American Airlines flights
Finnair
£381 £538 No cancel fee 76%
Search Finnair flights
United Airlines
£407 £618 No cancel fee 69%
Search United Airlines flights
Air Canada
£500 £862 No cancel fee 67%
Search Air Canada flights
Virgin Atlantic
£615 £801 No cancel fee 72%
Search Virgin Atlantic flights
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