฿43,540 Cheap American Airlines flights from St. Louis to London (STL→LON)

View ฿43,540 flight on Wed, 24 Jun 2026Opens in a new window

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American Airlines flights from St. Louis to London (STL→LON)

Prices were available within the past 7 days and start at ฿43,540 for one-way flights and ฿57,075 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 24 Jun - Sun, 28 Jun
STL
St. Louis
LHR
London
฿57,075 Return, found 14 hours ago
฿57,075
Return
found 14 hours ago
Select American Airlines flight, departing Wed, 24 Jun from St. Louis to London, returning Sun, 28 Jun, priced at ฿57,075 found 14 hours ago
American Airlines
Wed, 24 Jun - Sun, 28 Jun
STL
St. Louis
LHR
London
฿66,475 Return, found 14 hours ago
฿66,475
Return
found 14 hours ago
Select American Airlines flight, departing Wed, 24 Jun from St. Louis to London, returning Sun, 28 Jun, priced at ฿66,475 found 14 hours ago

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

September is typically the cheapest month to fly

From ฿16,530 - ฿49,689 per traveller.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Heathrow
Distance
6703 km
*Available to Expedia members.