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Cheap flights St Louis (Lambert-St. Louis) to London

1 passenger, economy

Cheap flights St Louis to London

Compare prices, duration and stops

Frontier Airlines
F9 4567
01:10
St Louis, Lambert-St. Louis (STL)
Thu, 24 sep
55h 50min
2 stops
09:00
London, London Gatwick Airport (LGW)
Sat, 26 sep +1
£345
Frontier Airlines
F9 4474 Best price
19:29
St Louis, Lambert-St. Louis (STL)
Fri, 25 sep
37h 31min
2 stops
09:00
London, London Gatwick Airport (LGW)
Sun, 27 sep +1
£244
Frontier Airlines
F9 4567
01:10
St Louis, Lambert-St. Louis (STL)
Sun, 27 sep
55h 50min
2 stops
09:00
London, London Gatwick Airport (LGW)
Tue, 29 sep +1
£289
Frontier Airlines
F9 2646
15:35
St Louis, Lambert-St. Louis (STL)
Sat, 31 oct
19h 20min
3 stops
10:55
London, London Gatwick Airport (LGW)
Sun, 1 nov +1
£321
SkyWest Airlines
OO 7204
17:32
St Louis, Lambert-St. Louis (STL)
Tue, 3 nov
15h 33min
2 stops
09:05
London, London Heathrow Airport (LHR)
Wed, 4 nov +1
£365
Frontier Airlines
F9 4474
00:44
St Louis, Lambert-St. Louis (STL)
Thu, 5 nov
20h 56min
2 stops
21:40
London, London Heathrow Airport (LHR)
Thu, 5 nov
£317
Air Canada
AC 6646
18:25
St Louis, Lambert-St. Louis (STL)
Sun, 2 May
14h 35min
1 stop
09:00
London, London Heathrow Airport (LHR)
Mon, 3 May +1
£260
Air Canada
AC 8688
18:25
St Louis, Lambert-St. Louis (STL)
Wed, 2 June
11h 5min
1 stop
05:30
London, London Heathrow Airport (LHR)
Thu, 3 June +1
£452

Low price calendar

September 2026
Price chart (September 2026)
min: £244 · max: £345
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Cheap flights St Louis to London

Air Canada
Air Canada
Wed, Sun
Price from
£260
Frontier Airlines
Frontier Airlines
Thu, Fri, Sat, Sun
Price from
£317
SkyWest Airlines
SkyWest Airlines
Tue
Price from
£365

Popular destinations from St Louis

All →
STL
St Louis — Denver
United States → United States
DEN
from
£38
STL
St Louis — Jacksonville
United States → United States
JAX
from
£52
STL
St Louis — Cleveland
United States → United States
CLE
from
£53
STL
St Louis — Atlanta
United States → United States
ATL
from
£60
STL
St Louis — Dallas
United States → United States
DFW
from
£63
STL
St Louis — Dallas
United States → United States
DAL
from
£71
STL
St Louis — Pittsburgh
United States → United States
PIT
from
£72
STL
St Louis — New York
United States → United States
NYC
from
£83
STL
St Louis — Orlando
United States → United States
ORL
from
£85

Popular destinations to London

All →
IST
Istanbul — London
Turkiye → United Kingdom
LON
from
£11
FRA
Frankfurt — London
Germany → United Kingdom
LON
from
£11
AYT
Antalya — London
Turkiye → United Kingdom
LON
from
£11
RMO
Chisinau — London
Moldova → United Kingdom
LON
from
£11
CGN
Cologne — London
Germany → United Kingdom
LON
from
£12
BFS
Belfast — London
United Kingdom → United Kingdom
LON
from
£13
DTM
Dortmund — London
Germany → United Kingdom
LON
from
£13
STO
Stockholm — London
Sweden → United Kingdom
LON
from
£13
MIL
Milan — London
Italy → United Kingdom
LON
from
£13

Cheap flights St Louis to London

Interesting facts about the route

Flight time

20h 8min

Distance

6 759 km

Average price

£319

Most frequent flight

F9 4474

Passenger reviews

No reviews for this route yet

Internet abroad

eSIM · United Kingdom

All plans

ukimobile

3 GB

data

30

days

£8

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ukimobile

5 GB

data

30

days

£10

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ukimobile

5 GB

data

30

days

£12

Buy

ukimobile

10 GB

data

30

days

£14

Buy

ukimobile

10 GB

data

30

days

£20

Buy

Frequently Asked Questions

The average ticket price St Louis London is £319. Check flight options below for current prices.
The average flight time is 20 hours 8 minutes.
Flights on the St Louis - London route are operated by the following airlines: Air Canada, Frontier Airlines, SkyWest Airlines.
The distance from St Louis to London is 6759 km.