Find Cheap Flights from Ontario to London (ONT - LON)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Ontario to London

(Round-trip)
Depart: Tue Sep 26 2017 Return: Tue Oct 10 2017 Trip spans 15 days
American Airlines
American Airlines
ONT
LHR
13h 05m
1 stop
LHR
ONT
14h 59m
1 stop
Depart: Sat Sep 30 2017 Return: Thu Oct 12 2017 Trip spans 13 days
British Airways
British Airways
ONT
LHR
15h 00m
1 stop
LHR
ONT
18h 35m
1 stop
Depart: Fri Sep 29 2017 Return: Mon Oct 9 2017 Trip spans 11 days
Virgin Atlantic
Virgin Atlantic
ONT
LHR
19h 00m
1 stop
LHR
ONT
16h 19m
1 stop
Depart: Sun Jun 25 2017 Return: Wed Jul 5 2017 Trip spans 11 days
$1179
Select
Delta
Delta
ONT
LHR
23h 20m
1 stop
LHR
ONT
14h 54m
1 stop
Depart: Sun Oct 1 2017 Return: Tue Oct 10 2017 Trip spans 10 days
American Airlines
American Airlines
ONT
LHR
13h 05m
1 stop
LHR
ONT
14h 59m
1 stop
Depart: Thu Nov 2 2017 Return: Fri Nov 17 2017 Trip spans 16 days
American Airlines
American Airlines
ONT
LHR
14h 13m
1 stop
LHR
ONT
15h 40m
1 stop
Depart: Wed Jun 21 2017 Return: Tue Jul 4 2017 Trip spans 14 days
$1354
Select
United
United
ONT
LHR
12h 30m
1 stop
LHR
ONT
16h 19m
1 stop
Depart: Tue Nov 7 2017 Return: Sat Nov 18 2017 Trip spans 12 days
American Airlines
American Airlines
ONT
LHR
13h 00m
1 stop
LHR
ONT
15h 09m
1 stop
Depart: Tue Sep 26 2017 Return: Sat Oct 7 2017 Trip spans 12 days
British Airways
British Airways
ONT
LGW
20h 36m
2 stops
LGW
ONT
34h 33m
2 stops
Depart: Wed Nov 8 2017 Return: Sat Nov 18 2017 Trip spans 11 days
American Airlines
American Airlines
ONT
LHR
13h 00m
1 stop
LHR
ONT
15h 09m
1 stop
Depart: Sat May 27 2017 Return: Sat Jun 3 2017 Trip spans 8 days
$1593
Select
Aeromexico
Aeromexico
ONT
LHR
31h 22m
2 stops
LHR
ONT
40h 28m
2 stops
Depart: Thu Nov 16 2017 Return: Tue Nov 28 2017 Trip spans 13 days
British Airways
British Airways
ONT
LHR
14h 55m
1 stop
LHR
ONT
15h 15m
1 stop
Depart: Sat Jul 22 2017 Return: Wed Aug 23 2017 Trip spans 33 days
Virgin Atlantic
Virgin Atlantic
ONT
LHR
16h 35m
1 stop
LHR
ONT
16h 14m
1 stop
Depart: Fri Nov 17 2017 Return: Fri Nov 24 2017 Trip spans 8 days
American Airlines
American Airlines
ONT
LHR
13h 00m
1 stop
LHR
ONT
15h 40m
1 stop
Depart: Wed Nov 15 2017 Return: Wed Nov 29 2017 Trip spans 15 days
British Airways
British Airways
ONT
LGW
34h 36m
2 stops
LGW
ONT
41h 00m
2 stops
Depart: Fri Aug 11 2017 Return: Fri Aug 25 2017 Trip spans 15 days
American Airlines
American Airlines
ONT
LHR
14h 46m
1 stop
LHR
ONT
15h 00m
1 stop
Depart: Mon Aug 14 2017 Return: Thu Aug 31 2017 Trip spans 18 days
American Airlines
American Airlines
ONT
LHR
14h 46m
1 stop
LHR
ONT
14h 59m
1 stop
Depart: Sat Aug 5 2017 Return: Sun Aug 20 2017 Trip spans 16 days
British Airways
British Airways
ONT
LGW
35h 10m
2 stops
LGW
ONT
28h 30m
2 stops
Depart: Thu Aug 10 2017 Return: Mon Aug 21 2017 Trip spans 12 days
British Airways
British Airways
ONT
LGW
25h 49m
2 stops
LGW
ONT
28h 40m
2 stops
Depart: Sun Jun 11 2017 Return: Mon Jun 19 2017 Trip spans 9 days
$1400
Select
United
United
ONT
LHR
12h 30m
1 stop
LHR
ONT
15h 19m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Ontario
$591
Destination

London
only $591
only $772