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Find Deals on Flights from Ontario to London (ONT - LON)

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Ontario to London

(Round-trip)
Depart: Sun Aug 23 2015 Return: Thu Sep 3 2015 Trip spans 12 days
United
United
ONT
1:20p
LHR
2:05a
12h 45m
1 stop
LHR
6:25a
ONT
8:48p
14h 23m
1 stop
Depart: Mon Aug 24 2015 Return: Thu Sep 3 2015 Trip spans 11 days
United
United
ONT
6:40a
LHR
7:10p
12h 30m
1 stop
LHR
10:10a
ONT
3:59a
17h 49m
1 stop
Depart: Tue Aug 25 2015 Return: Thu Sep 3 2015 Trip spans 10 days
United
United
ONT
1:20p
LHR
2:05a
12h 45m
1 stop
LHR
10:10a
ONT
12:15a
14h 05m
1 stop
Depart: Thu Sep 3 2015 Return: Thu Sep 10 2015 Trip spans 8 days
United
United
ONT
1:20p
LHR
2:05a
12h 45m
1 stop
LHR
5:30a
ONT
2:45a
21h 15m
1 stop
Depart: Wed Sep 9 2015 Return: Wed Sep 16 2015 Trip spans 8 days
United
United
ONT
7:35a
LHR
9:40p
14h 05m
1 stop
LHR
7:40a
ONT
2:45a
19h 05m
1 stop
Depart: Wed Oct 7 2015 Return: Wed Oct 21 2015 Trip spans 15 days
United
United
ONT
8:30a
LHR
2:05a
17h 35m
1 stop
LHR
9:40a
ONT
2:45a
17h 05m
1 stop
Depart: Sun Oct 11 2015 Return: Sun Oct 18 2015 Trip spans 8 days
$1010
Select
United
United
ONT
3:00a
LHR
9:40p
18h 40m
1 stop
LHR
6:25a
ONT
12:15a
17h 50m
1 stop
Depart: Fri Oct 9 2015 Return: Sat Oct 17 2015 Trip spans 9 days
$1028
Select
United
United
ONT
1:20p
LHR
2:05a
12h 45m
1 stop
LHR
9:40a
ONT
2:45a
17h 05m
1 stop
Depart: Sat Oct 10 2015 Return: Sat Oct 17 2015 Trip spans 8 days
$1028
Select
United
United
ONT
1:20a
LHR
7:10p
17h 50m
1 stop
LHR
9:40a
ONT
2:45a
17h 05m
1 stop
Depart: Wed Oct 21 2015 Return: Tue Nov 3 2015 Trip spans 14 days
$1048
Select
Air Canada
Air Canada
ONT
4:45p
LHR
11:40p
30h 55m
2 stops
LHR
9:25a
ONT
1:03p
27h 38m
2 stops
Depart: Fri Oct 2 2015 Return: Sat Oct 17 2015 Trip spans 16 days
$1084
Select
Air Canada
Air Canada
ONT
4:45p
LHR
11:40p
30h 55m
2 stops
LHR
6:05a
ONT
12:15a
18h 10m
2 stops
Depart: Fri Oct 23 2015 Return: Sun Nov 1 2015 Trip spans 10 days
$1084
Select
Air Canada
Air Canada
ONT
4:45p
LHR
12:15a
31h 30m
2 stops
LHR
9:25a
ONT
1:03p
27h 38m
2 stops
Depart: Sat Aug 22 2015 Return: Sun Sep 6 2015 Trip spans 16 days
$1094
Select
Air Canada
Air Canada
ONT
1:20p
LHR
11:40p
34h 20m
2 stops
LHR
6:05a
ONT
12:15a
18h 10m
2 stops
Depart: Sat Sep 12 2015 Return: Mon Sep 14 2015 Trip spans 3 days
$1101
Select
United
United
ONT
6:40a
LHR
7:10p
12h 30m
1 stop
LHR
2:30a
ONT
8:48p
18h 18m
2 stops
Depart: Fri Oct 16 2015 Return: Sun Oct 18 2015 Trip spans 3 days
$1104
Select
KLM Royal Dutch
KLM Royal Dutch
ONT
6:25a
LHR
1:00a
18h 35m
1 stop
LHR
2:30a
ONT
2:50a
24h 20m
2 stops
Depart: Wed Nov 18 2015 Return: Tue Dec 1 2015 Trip spans 14 days
$1121
Select
Aeromexico
Aeromexico
ONT
8:05p
LHR
2:55a
30h 50m
1 stop
LHR
5:30p
ONT
2:25a
32h 55m
1 stop
Depart: Sun Sep 6 2015 Return: Mon Sep 14 2015 Trip spans 9 days
$1140
Select
British Airways
British Airways
ONT
2:05a
LHR
9:15p
19h 10m
1 stop
LHR
11:15a
ONT
3:08a
15h 53m
1 stop
Depart: Sun Oct 4 2015 Return: Mon Oct 12 2015 Trip spans 9 days
$1140
Select
Air France
Air France
ONT
2:00a
LHR
1:00a
23h 00m
1 stop
LHR
9:05a
ONT
2:50a
17h 45m
1 stop
Depart: Wed Jul 22 2015 Return: Wed Jul 29 2015 Trip spans 8 days
$1349
Select
Major Airline
Major Airline
ONT
5:00p
LHR
11:05p
30h 05m
2 stops
LHR
4:30a
ONT
4:34a
24h 04m
2 stops
Depart: Sat Jun 27 2015 Return: Tue Jul 28 2015 Trip spans 32 days
$1509
Select
US Airways
US Airways
ONT
5:45p
LHR
10:10a
16h 25m
2 stops
LHR
10:25a
ONT
3:57a
17h 32m
2 stops
Airports
Origin

Ontario
$992
Destination

London
$992