₹35,473 Cheap Flights from St. Louis (STL) to London (LHR)

View ₹35,473 flight on Wed, 3 Dec 2025Opens in a new window

Popular airlines from Lambert-St. Louis International Airport (STL) to Heathrow Airport (LHR)

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Cheap Flights from St. Louis (STL) to London (LHR)

Prices were available within the past 7 days and start at ₹35,473 for one-way flights and ₹55,085 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 1 Dec - Wed, 24 Dec
STL
St. Louis
LHR
London
₹55,085 Return, found 2 days ago
₹55,085
Return
found 2 days ago
Select United flight, departing Mon, 1 Dec from St. Louis to London, returning Wed, 24 Dec, priced at ₹55,085 found 2 days ago
Air Canada
Sat, 6 Dec - Wed, 24 Dec
STL
St. Louis
LHR
London
₹55,654 Return, found 2 days ago
₹55,654
Return
found 2 days ago
Select Air Canada flight, departing Sat, 6 Dec from St. Louis to London, returning Wed, 24 Dec, priced at ₹55,654 found 2 days ago
Delta
Tue, 2 Dec - Fri, 19 Dec
STL
St. Louis
LHR
London
₹57,227 Return, found 2 days ago
₹57,227
Return
found 2 days ago
Select Delta flight, departing Tue, 2 Dec from St. Louis to London, returning Fri, 19 Dec, priced at ₹57,227 found 2 days ago
Air Canada
Sat, 6 Dec - Thu, 18 Dec
STL
St. Louis
LHR
London
₹57,796 Return, found 2 days ago
₹57,796
Return
found 2 days ago
Select Air Canada flight, departing Sat, 6 Dec from St. Louis to London, returning Thu, 18 Dec, priced at ₹57,796 found 2 days ago
United
Fri, 5 Dec - Wed, 24 Dec
STL
St. Louis
LHR
London
₹59,485 Return, found 2 days ago
₹59,485
Return
found 2 days ago
Select United flight, departing Fri, 5 Dec from St. Louis to London, returning Wed, 24 Dec, priced at ₹59,485 found 2 days ago
Virgin Atlantic
Wed, 3 Dec - Sun, 21 Dec
STL
St. Louis
LHR
London
₹61,627 Return, found 2 days ago
₹61,627
Return
found 2 days ago
Select Virgin Atlantic flight, departing Wed, 3 Dec from St. Louis to London, returning Sun, 21 Dec, priced at ₹61,627 found 2 days ago
Air Canada
Sat, 6 Dec - Mon, 22 Dec
STL
St. Louis
LHR
London
₹62,196 Return, found 2 days ago
₹62,196
Return
found 2 days ago
Select Air Canada flight, departing Sat, 6 Dec from St. Louis to London, returning Mon, 22 Dec, priced at ₹62,196 found 2 days ago
Delta
Wed, 3 Dec - Sun, 21 Dec
STL
St. Louis
LHR
London
₹63,916 Return, found 2 days ago
₹63,916
Return
found 2 days ago
Select Delta flight, departing Wed, 3 Dec from St. Louis to London, returning Sun, 21 Dec, priced at ₹63,916 found 2 days ago
Air France
Wed, 3 Dec - Sun, 21 Dec
STL
St. Louis
LHR
London
₹64,329 Return, found 2 days ago
₹64,329
Return
found 2 days ago
Select Air France flight, departing Wed, 3 Dec from St. Louis to London, returning Sun, 21 Dec, priced at ₹64,329 found 2 days ago
KLM
Wed, 3 Dec - Sun, 21 Dec
STL
St. Louis
LHR
London
₹64,774 Return, found 2 days ago
₹64,774
Return
found 2 days ago
Select KLM flight, departing Wed, 3 Dec from St. Louis to London, returning Sun, 21 Dec, priced at ₹64,774 found 2 days ago

Find the cheapest month to fly from St. Louis (STL) to London (LHR)

September is typically the cheapest month to fly

From ₹45,977 - ₹133,818 per traveller.

Frequently asked questions

How much is a flight from St. Louis Lambert International Airport to LHR?
Pack your bags, because round-trip flights between STL and LHR start from ₹55,085. That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book now to lock in the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert-St. Louis Intl. Airport (STL) to London Heathrow?
This can differ between air carriers, as each one has its own terms and conditions. Visit the Customer Service Portal, where there are easy instructions on how to cancel online.
How do I find cheap flights from St. Louis Lambert International Airport to Heathrow Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Lambert-St. Louis Intl. Airport (STL) to Heathrow Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from St. Louis Lambert International Airport to LHR?
With around 6,800 kilometres separating St. Louis and Hounslow, your flight will be a long one. Pack wisely to make your time in the air comfortable. Things like a spare pair of socks and a cosy travel pillow should be in your hand luggage.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to London Heathrow?
Unfortunately, there aren't any airlines that fly directly between St. Louis Lambert International Airport and Heathrow Airport. You'll need to book a flight with one or more stops.
Are Lambert-St. Louis Intl. Airport (STL) to Heathrow Airport (LHR) flight tickets cheaper when they're purchased at the last minute?
It is possible to get an awesome last-minute deal from Lambert Field to Heathrow Airport, but it's also possible to miss out altogether! As many airlines release prices up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you see a bargain. Expedia compares air carrier prices and updates flight deals frequently, so you can rest easy knowing you're always seeing the latest offers.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Heathrow
Return price
₹55,085
Distance
6703 km

Book with confidence

St. Louis to London Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from St. Louis to London will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring London.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with STL to LHR flights that won’t make your bank account wince. Ready to temporarily leave behind St. Louis for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to LHR with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

St. Louis to London Flights

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