Earn point on your loyalty program!arrow arc left

Cheap flights from St Louis (STL) to London (LCY)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from St Louis (STL) to London (LCY)

How to find the cheapest flight from St Louis (STL) to London (LCY)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to London (LCY)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to London (LCY)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from St Louis to London in September , October 2026

29 Sep - 13 Oct $ 1,753.00
STL
St Louis
Air Canada
3 STOPS
LCY
London
LCY
London
Air Canada
2 STOPS
STL
St Louis
Pick dates
29 Sep - 21 Oct $ 1,800.00
STL
St Louis
WestJet
3 STOPS
LCY
London
LCY
London
WestJet
3 STOPS
STL
St Louis
Pick dates
30 Sep - 13 Oct $ 1,818.00
STL
St Louis
Air Canada
2 STOPS
LCY
London
LCY
London
Air Canada
2 STOPS
STL
St Louis
Pick dates

Last minute flights from St Louis to London

29 Sep - 02 Oct $ 2,445.00
STL
St Louis
Air Canada
3 STOPS
LCY
London
LCY
London
Air Canada
3 STOPS
STL
St Louis
Pick dates
29 Sep - 02 Oct $ 2,545.00
STL
St Louis
Air Canada
2 STOPS
LCY
London
LCY
London
Air Canada
3 STOPS
STL
St Louis
Pick dates
29 Sep - 01 Oct $ 2,711.00
STL
St Louis
Air Canada
3 STOPS
LCY
London
LCY
London
Air Canada
2 STOPS
STL
St Louis
Pick dates

One-way flights to London from St Louis

12:17 PM - 8:15 AM
Lufthansa
3 Stops
38h 23m
STL - LCY
$ 894
Kiwi
Pick dates
2:40 PM - 4:35 PM
KLM Royal Dutch Airlines
3 Stops
20h
STL - LCY
$ 913
Kiwi
Pick dates
2:29 PM - 4:35 PM
Virgin Atlantic Airways
2 Stops
20h 11m
STL - LCY
$ 979
Kiwi
Pick dates

How to find the cheapest flight from St Louis (STL) to London (LCY)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to London (LCY)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to London (LCY)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.