$394 Cheap flights from Lambert-St. Louis Intl. to Heathrow (STL to LHR)

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Find The Best Dates To Fly from Lambert-St. Louis Intl. to Heathrow

Compare Flight Prices from St. Louis to London

Affordable Airfare Tickets from STL to LHR Airport

The cheapest flights to Heathrow found within the past 7 days were $513 round trip and $394 one way. Prices and availability subject to change. Additional terms may apply.

Sun, Aug 24 - Tue, Sep 9
STL
St. Louis
LHR
London
$513 Roundtrip, found 2 hours ago
$513
Roundtrip
found 2 hours ago
Select Iberia flight, departing Sun, Aug 24 from St. Louis to London, returning Tue, Sep 9, priced at $513 found 2 hours ago
Wed, Aug 27 - Tue, Sep 2
STL
St. Louis
LHR
London
$524 Roundtrip, found 3 hours ago
$524
Roundtrip
found 3 hours ago
Select Iberia flight, departing Wed, Aug 27 from St. Louis to London, returning Tue, Sep 2, priced at $524 found 3 hours ago
Tue, Aug 5 - Tue, Aug 19
STL
St. Louis
LHR
London
$534 Roundtrip, found 2 hours ago
$534
Roundtrip
found 2 hours ago
Select British Airways flight, departing Tue, Aug 5 from St. Louis to London, returning Tue, Aug 19, priced at $534 found 2 hours ago
Tue, Aug 5 - Tue, Aug 19
STL
St. Louis
LHR
London
$534 Roundtrip, found 2 hours ago
$534
Roundtrip
found 2 hours ago
Select Virgin Atlantic flight, departing Tue, Aug 5 from St. Louis to London, returning Tue, Aug 19, priced at $534 found 2 hours ago
Tue, Aug 5 - Tue, Aug 19
STL
St. Louis
LHR
London
$534 Roundtrip, found 2 hours ago
$534
Roundtrip
found 2 hours ago
Select Delta flight, departing Tue, Aug 5 from St. Louis to London, returning Tue, Aug 19, priced at $534 found 2 hours ago
Tue, Aug 5 - Tue, Aug 19
STL
St. Louis
LHR
London
$534 Roundtrip, found 2 hours ago
$534
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Tue, Aug 5 from St. Louis to London, returning Tue, Aug 19, priced at $534 found 2 hours ago
Sun, Aug 24 - Tue, Sep 9
STL
St. Louis
LHR
London
$539 Roundtrip, found 2 hours ago
$539
Roundtrip
found 2 hours ago
Select Virgin Atlantic flight, departing Sun, Aug 24 from St. Louis to London, returning Tue, Sep 9, priced at $539 found 2 hours ago
Tue, Aug 5 - Tue, Aug 19
STL
St. Louis
LHR
London
$578 Roundtrip, found 2 hours ago
$578
Roundtrip
found 2 hours ago
Select Air France flight, departing Tue, Aug 5 from St. Louis to London, returning Tue, Aug 19, priced at $578 found 2 hours ago
Thu, Aug 7 - Tue, Aug 19
STL
St. Louis
LHR
London
$584 Roundtrip, found 2 hours ago
$584
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Thu, Aug 7 from St. Louis to London, returning Tue, Aug 19, priced at $584 found 2 hours ago
Tue, Aug 5 - Tue, Aug 19
STL
St. Louis
LHR
London
$586 Roundtrip, found 2 hours ago
$586
Roundtrip
found 2 hours ago
Select KLM flight, departing Tue, Aug 5 from St. Louis to London, returning Tue, Aug 19, priced at $586 found 2 hours ago

Heathrow flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Three Falcons Hotel

Three Falcons Hotel

4 out of 5
per person
Aug 9 - Aug 15
found 1 day ago
Roundtrip non-stop flight included
St. Louis (STL) to London (LHR)
Grange Portland

Grange Portland

4 out of 5
per person
Aug 9 - Aug 15
found 1 day ago
Roundtrip non-stop flight included
St. Louis (STL) to London (LHR)
ME London

ME London

5 out of 5
Save 100% on your flight
per person
Aug 3 - Aug 9
found 14 hours ago
Roundtrip non-stop flight included
St. Louis (STL) to London (LHR)
Mowbray Court Hotel

Mowbray Court Hotel

3.5 out of 5
per person
Aug 3 - Aug 9
found 14 hours ago
Roundtrip non-stop flight included
St. Louis (STL) to London (LHR)
Grange Clarendon

Grange Clarendon

4 out of 5
per person
Aug 3 - Aug 9
found 14 hours ago
Roundtrip non-stop flight included
St. Louis (STL) to London (LHR)
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Frequently asked questions

Can I catch a flight from Lambert Field to LHR right now?
It's prudent to know about any travel advice reports and quarantine requirements in place in your destination city. Ensure you check out our Covid-19 Travel Advisor for up-to-date info on catching a flight to London Heathrow.
Are there direct flights from Lambert-St. Louis Intl. Airport (STL) to Heathrow Airport (LHR)?
If you want to travel quickly from STL to Heathrow Airport (LHR), try American Airlines, British Airways and United Airlines. No airlines offer nonstop flights on this route, so you'll have to make at least one stopover.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Heathrow Airport (LHR), please visit our Customer Service Portal.
How long is the flight from STL to LHR?
On average, it takes 10 hours and 54 minutes to travel from Lambert Field to London Heathrow. For this long-haul flight, you'll benefit from being as well prepared as possible. Think about bringing a neck pillow for improved sleep, packing some healthy snacks and wearing comfortable clothes.
What is the flight distance from STL to Heathrow Airport (LHR)?
From STL to LHR, there's a flight distance of 4,200 mi. So, it'll be wise to have a good selection of entertainment options. Movies, audio books, music ... You name it. If you're adequately prepared, it won't feel like too long before you hear the call to prepare for landing.
What airlines fly from Lambert Field to Heathrow Airport (LHR)?
As yet, there are no direct flights provided between St. Louis Lambert International Airport and London Heathrow. Start planning early to save time and find the easiest route with minimal layovers.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you're flying with British Airways, Virgin Atlantic or SAS you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Flight information from St. Louis to London

 

Traveling From
Lambert-St. Louis Intl.
Traveling To
Heathrow
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$513

Route Info

Flight path for flights from Lambert-St. Louis International Airport to London Heathrow Airport.


Origin:
STL - Lambert-St. Louis International Airport
Destination:
LHR - London Heathrow Airport
Distance:
4,349.00 miles


Discover our best flights from St. Louis STL to London LHR. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from St. Louis STL to London LHR at the right price  

Airfares to London LHR from St. Louis STL currently cost between $513 and $586. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from St. Louis STL to London LHR 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from St. Louis STL to London LHR on Travelocity starting at $394. Prices and availability subject to change. Additional terms may apply. 

 

Get to London LHR from St. Louis STL quicker with direct flights. 

Get to London faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to LHR from STL to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from St. Louis STL to London LHR

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to LHR from STL. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from St. Louis STL to London LHR today 

If you’re flexible about when you travel, August is usually the cheapest month to fly from St. Louis STL to London LHR. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to London LHR from St. Louis STL 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to LHR from STL have this option.  

 

Travel with confidence when you book flights to London LHR from St. Louis STL with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.