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Find flight deals from United Kingdom to Ontario

Flexible dates? Here are the best fares found in the past 48 hours...

Book cheap flights to Ontario

(Round-trip)
Depart: Mon 15 Jun 2015 Return: Sun 21 Jun 2015 Trip spans 7 days
£449
Select
British Airways
British Airways
LHR
05:30
ONT
22:08
16h 38m
1 stop
ONT
20:59
LHR
18:55
21h 56m
1 stop
Depart: Mon 1 Jun 2015 Return: Sun 7 Jun 2015 Trip spans 7 days
£469
Select
Delta
Delta
LHR
09:05
ONT
13:28
52h 23m
2 stops
ONT
02:15
LHR
00:15
46h 00m
2 stops
Depart: Tue 9 Jun 2015 Return: Tue 30 Jun 2015 Trip spans 22 days
£472
Select
American Airlines
American Airlines
LHR
07:50
ONT
23:49
15h 59m
1 stop
ONT
10:15
LHR
01:15
15h 00m
1 stop
Depart: Wed 27 May 2015 Return: Thu 4 Jun 2015 Trip spans 9 days
£492
Select
Air France
Air France
LHR
08:30
ONT
03:20
18h 50m
2 stops
ONT
06:15
LHR
23:05
16h 50m
2 stops
Depart: Wed 3 Jun 2015 Return: Wed 10 Jun 2015 Trip spans 8 days
£499
Select
KLM Royal Dutch
KLM Royal Dutch
LCY
03:50
ONT
03:20
23h 30m
2 stops
ONT
06:15
LCY
03:35
21h 20m
2 stops
Depart: Mon 2 Nov 2015 Return: Sun 22 Nov 2015 Trip spans 21 days
£523
Select
United
United
LHR
03:20
ONT
21:33
18h 13m
2 stops
ONT
15:45
LHR
01:05
33h 20m
1 stop
Depart: Thu 3 Sep 2015 Return: Sat 12 Sep 2015 Trip spans 10 days
£634
Select
Aeromexico
Aeromexico
LHR
18:35
ONT
03:22
32h 47m
2 stops
ONT
21:05
LHR
04:05
31h 00m
1 stop
Depart: Thu 29 Oct 2015 Return: Tue 17 Nov 2015 Trip spans 20 days
£635
Select
United
United
BHX
04:00
ONT
23:00
19h 00m
2 stops
ONT
15:45
BHX
18:10
26h 25m
2 stops
Depart: Tue 10 Nov 2015 Return: Tue 17 Nov 2015 Trip spans 8 days
£672
Select
KLM Royal Dutch
KLM Royal Dutch
MAN
12:20
ONT
19:20
31h 00m
2 stops
ONT
01:30
MAN
21:05
19h 35m
2 stops
Depart: Wed 21 Oct 2015 Return: Wed 4 Nov 2015 Trip spans 15 days
£684
Select
Delta
Delta
MAN
07:30
ONT
02:26
42h 56m
2 stops
ONT
01:05
MAN
18:00
16h 55m
2 stops
Depart: Wed 17 Jun 2015 Return: Sun 28 Jun 2015 Trip spans 12 days
£709
Select
US Airways
US Airways
LHR
08:25
ONT
23:49
15h 24m
1 stop
ONT
02:25
LHR
19:40
17h 15m
2 stops
Depart: Wed 16 Sep 2015 Return: Sun 20 Sep 2015 Trip spans 5 days
£714
Select
United
United
MAN
08:00
ONT
03:59
19h 59m
2 stops
ONT
03:00
MAN
22:15
19h 15m
2 stops
Depart: Wed 28 Oct 2015 Return: Tue 17 Nov 2015 Trip spans 21 days
£721
Select
Air Canada
Air Canada
LHR
10:25
ONT
13:03
26h 38m
2 stops
ONT
15:45
LHR
22:15
30h 30m
2 stops
Depart: Mon 7 Sep 2015 Return: Tue 15 Sep 2015 Trip spans 9 days
£736
Select
United
United
GLA
05:00
ONT
00:15
19h 15m
2 stops
ONT
16:45
GLA
19:30
26h 45m
2 stops
Depart: Thu 11 Jun 2015 Return: Tue 30 Jun 2015 Trip spans 20 days
£740
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
02:30
ONT
19:52
17h 22m
2 stops
ONT
06:15
LHR
00:15
18h 00m
2 stops
Depart: Wed 23 Sep 2015 Return: Thu 8 Oct 2015 Trip spans 16 days
£791
Select
British Airways
British Airways
GLA
17:00
ONT
23:50
30h 50m
2 stops
ONT
10:15
GLA
02:35
16h 20m
2 stops
Depart: Wed 30 Sep 2015 Return: Wed 21 Oct 2015 Trip spans 22 days
£791
Select
KLM Royal Dutch
KLM Royal Dutch
GLA
12:55
ONT
21:23
32h 28m
2 stops
ONT
06:25
GLA
04:05
21h 40m
2 stops
Depart: Wed 14 Oct 2015 Return: Wed 28 Oct 2015 Trip spans 15 days
£793
Select
Air France
Air France
MAN
04:45
ONT
02:50
22h 05m
2 stops
ONT
02:00
MAN
23:20
21h 20m
2 stops
Depart: Sun 27 Sep 2015 Return: Sun 11 Oct 2015 Trip spans 15 days
£799
Select
British Airways
British Airways
MAN
15:35
ONT
23:50
32h 15m
2 stops
ONT
10:15
MAN
05:25
43h 10m
2 stops
Depart: Tue 4 Aug 2015 Return: Mon 31 Aug 2015 Trip spans 28 days
£899
Select
United
United
EDI
06:25
ONT
03:24
20h 59m
2 stops
ONT
01:20
EDI
19:50
18h 30m
2 stops
Airports
Origin

London
only £449
only £499
Manchester
£672
Glasgow
£736
Edinburgh
£899
Birmingham
£635
Destination

Ontario
£449