Cheap Flights from Heathrow to St. Louis from £404

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

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

£404

Combigo

11:35 - 07:46

Multiple Airlines

1 stop

26h 11m

LHR - STL

£443

Combigo

07:05 - 19:04

Multiple Airlines

1 stop

17h 59m

LHR - STL

£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.

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Car Rentals in St. Louis Car Rentals in USA

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.

London to Kansas City from £1,076 pp

Destination information for St. Louis

Things to know before you go - useful duration and weather info for your trip from Heathrow to St. Louis.

£1 = $1.39

22.0 °C

71.0 mm

Airports servicing London

Heathrow (LHR)

Airports servicing St. Louis

St. Louis (STL)

Airline	Cheapest	Average	Flexibility	On-time
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

Cheap flights from Heathrow to St. Louis

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.

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

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

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

The best prices found for LHR to STL flights in October, November

London Heathrow to St. Louis 2021 flight deals

Cheap flights to St. Louis from Heathrow found for this year

Last-minute flights from Heathrow to St. Louis

Late deals on return flights to St. Louis from Heathrow, departing today and this week

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

The cheapest one-way flights from Heathrow to St. Louis

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?

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

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

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

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

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

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

Related searches

Flights to St. Louis (STL) from Heathrow

Hire a Car

COVID Restrictions

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

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

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.

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.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2021.

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