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On average save $240 per traveler
05/02/25
12:07pm
ONT
23h 3m
ATL
05/03/25
11:10am
LHR
05/04/25
8:40am
LHR
6h 10m
AMS
05/04/25
2:50pm
ONT
$551
Free cancellation within 83 hours of booking
05/09/25
1:10pm
ONT
20h 40m
SLC
05/10/25
9:50am
LHR
05/11/25
6:30am
LHR
5h 20m
AMS
05/11/25
11:50am
ONT
$551
Free cancellation within 83 hours of booking
04/21/25
6:00am
ONT
27h 50m
SLC
04/22/25
9:50am
LHR
04/30/25
11:30am
LHR
6h 50m
CDG
04/30/25
6:20pm
ONT
$616
Free cancellation within 83 hours of booking
04/30/25
6:00am
ONT
27h 50m
SLC
05/01/25
9:50am
LHR
05/07/25
11:30am
LHR
6h 40m
CDG
05/07/25
6:10pm
ONT
$616
Free cancellation within 83 hours of booking
04/20/25
2:35pm
ONT
23h 40m
SEA
04/21/25
2:15pm
LHR
05/12/25
9:00am
LHR
9h 10m
CDG
05/12/25
6:10pm
ONT
$617
Free cancellation within 83 hours of booking
04/19/25
7:00am
ONT
23h 25m
DFW
04/20/25
6:25am
LHR
05/12/25
3:05pm
LHR
8h 43m
JFK
05/12/25
11:48pm
ONT
$618
Free cancellation within 83 hours of booking
05/08/25
4:35pm
ONT
22h 5m
PHX
05/09/25
2:40pm
LHR
05/15/25
3:05pm
LHR
8h 43m
JFK
05/15/25
11:48pm
ONT
$618
Free cancellation within 83 hours of booking
05/02/25
1:20pm
ONT
20h 30m
SLC
05/03/25
9:50am
LHR
05/16/25
6:15am
LHR
15h 17m
CDG
SLC
05/16/25
9:32pm
ONT
$622
Free cancellation within 83 hours of booking
05/07/25
1:14pm
ONT
25h 26m
PHX
05/08/25
2:40pm
LHR
05/15/25
10:25am
LHR
26h 41m
LAS
05/16/25
1:06pm
ONT
$623
Free cancellation within 83 hours of booking
05/01/25
7:00am
ONT
23h 45m
ATL
05/02/25
6:45am
LHR
05/06/25
11:45am
LHR
10h
DTW
SLC
05/06/25
9:45pm
ONT
$631
Free cancellation within 83 hours of booking
04/28/25
7:25pm
ONT
36h 45m
PHX
JFK
04/30/25
8:10am
LGW
05/05/25
3:05pm
LGW
22h 47m
JFK
DFW
05/06/25
1:52pm
ONT
$638
Free cancellation within 83 hours of booking
04/18/25
1:35pm
ONT
20h 5m
DEN
04/19/25
9:40am
LHR
04/25/25
8:40am
LHR
7h 50m
ZRH
04/25/25
4:30pm
ONT
$641
Free cancellation within 83 hours of booking
04/17/25
12:50pm
ONT
25h 50m
PHX
04/18/25
2:40pm
LHR
04/30/25
10:50am
LHR
13h
MAD
DFW
04/30/25
11:50pm
ONT
$643
Free cancellation within 83 hours of booking
04/23/25
7:05am
ONT
24h 20m
SFO
04/24/25
7:25am
LHR
04/28/25
7:30pm
LHR
17h 35m
VIE
04/29/25
1:05pm
ONT
$646
Free cancellation within 83 hours of booking
05/03/25
5:05am
ONT
25h 30m
DEN
YYZ
05/04/25
6:35am
LHR
05/10/25
6:00am
LHR
7h 5m
VIE
05/10/25
1:05pm
ONT
$650
Free cancellation within 83 hours of booking
04/27/25
12:50pm
ONT
51h 40m
DFW
BCN
04/29/25
4:30pm
LCY
05/04/25
2:45pm
LCY
9h 39m
JFK
05/05/25
12:24am
ONT
$658
Free cancellation within 83 hours of booking
04/27/25
12:07pm
ONT
25h 23m
ATL
04/28/25
1:30pm
LHR
05/11/25
10:55am
LHR
12h 47m
SLC
05/11/25
11:42pm
ONT
$661
Free cancellation within 83 hours of booking
05/04/25
11:59pm
ONT
34h 36m
DFW
AMS
05/06/25
10:35am
LHR
05/11/25
8:40pm
LHR
23h 31m
MAD
ORD
05/12/25
8:11pm
ONT
$665
Free cancellation within 83 hours of booking
05/01/25
2:35pm
ONT
23h 40m
SEA
05/02/25
2:15pm
LHR
05/06/25
10:55am
LHR
7h 18m
SLC
05/06/25
6:13pm
ONT
$667
Free cancellation within 83 hours of booking
05/03/25
1:20pm
ONT
20h 20m
DEN
05/04/25
9:40am
LHR
05/12/25
6:00am
LHR
7h 5m
VIE
05/12/25
1:05pm
ONT
$669
Free cancellation within 83 hours of booking
04/30/25
1:35pm
ONT
20h 5m
DEN
05/01/25
9:40am
LHR
05/14/25
7:25am
LHR
7h 50m
MUC
05/14/25
3:15pm
ONT
$669
Free cancellation within 83 hours of booking
05/01/25
1:20pm
ONT
20h 20m
DEN
05/02/25
9:40am
LHR
05/08/25
7:30am
LHR
9h 25m
FRA
05/08/25
4:55pm
ONT
$673
Free cancellation within 83 hours of booking
05/07/25
4:15pm
ONT
20h 5m
DEN
05/08/25
12:20pm
LHR
05/14/25
8:40am
LHR
7h 50m
ZRH
05/14/25
4:30pm
ONT
$701
Free cancellation within 83 hours of booking
05/12/25
1:20pm
ONT
20h 20m
DEN
05/13/25
9:40am
LHR
05/19/25
1:00pm
LHR
10h 29m
EWR
05/19/25
11:29pm
ONT
$702
Free cancellation within 83 hours of booking
04/20/25
1:35pm
ONT
22h 45m
DEN
04/21/25
12:20pm
LHR
04/26/25
11:05am
LHR
28h 10m
BRU
MUC
04/27/25
3:15pm
ONT
$707
Free cancellation within 83 hours of booking
04/22/25
5:00am
ONT
28h 40m
DEN
04/23/25
9:40am
LHR
05/12/25
7:30pm
LHR
26h 30m
FRA
IAH
05/13/25
10:00pm
ONT
$736
Free cancellation within 83 hours of booking
04/22/25
6:00am
ONT
29h 35m
AUS
IAH
04/23/25
11:35am
LHR
05/12/25
7:30pm
LHR
26h 30m
FRA
IAH
05/13/25
10:00pm
ONT
$740
Free cancellation within 83 hours of booking
05/12/25
1:10pm
ONT
20h 40m
SLC
05/13/25
9:50am
LHR
05/19/25
9:20am
LHR
11h 2m
AMS
MSP
05/19/25
8:22pm
ONT
$749
Free cancellation within 83 hours of booking
05/12/25
10:59pm
ONT
21h 46m
JFK
05/13/25
8:45pm
LHR
05/19/25
8:15am
LHR
16h 52m
JFK
05/20/25
1:07am
ONT
$783
Free cancellation within 83 hours of booking
05/08/25
7:30am
ONT
30h 55m
DFW
05/09/25
2:25pm
LHR
05/17/25
1:00pm
LHR
6h 14m
LAS
05/17/25
7:14pm
ONT
$786
Free cancellation within 83 hours of booking
Top Deals on flights from Ontario International Airport to London
Los Angeles, US (LAX) - London, GB (LON)
Sep 20
11:00pm
ONT
21h 45m
JFK
Sep 21
8:45pm
LHR
as low as
$393
Los Angeles, US (LAX) - London, GB (LON)
May 1
4:15pm
ONT
20h 5m
DEN
May 2
12:20pm
LHR
as low as
$396
Los Angeles, US (LAX) - London, GB (LON)
Aug 5
4:45pm
ONT
20h 5m
PHX
Aug 6
12:50pm
LHR
as low as
$399
Los Angeles, US (LAX) - London, GB (LON)
Jul 22
7:00am
ONT
23h 45m
ATL
Jul 23
6:45am
LHR
as low as
$399
Los Angeles, US (LAX) - London, GB (LON)
Jul 30
7:00am
ONT
27h
ATL
JFK
Jul 31
10:00am
LGW
as low as
$399
Los Angeles, US (LAX) - London, GB (LON)
Aug 1
7:00am
ONT
23h 45m
ATL
Aug 2
6:45am
LHR
as low as
$399
Los Angeles, US (LAX) - London, GB (LON)
Apr 19
6:00am
ONT
24h 20m
SFO
ORD
Apr 20
6:20am
LHR
as low as
$399
Los Angeles, US (LAX) - London, GB (LON)
Nov 3
1:00pm
ONT
21h
SLC
Nov 4
10:00am
LHR
as low as
$399
Los Angeles, US (LAX) - London, GB (LON)
Jul 29
2:38pm
ONT
23h 37m
SEA
Jul 30
2:15pm
LHR
as low as
$399
Los Angeles, US (LAX) - London, GB (LON)
Oct 23
10:55am
ONT
22h 5m
DFW
Oct 24
9:00am
LHR
as low as
$413
Los Angeles, US (LAX) - London, GB (LON)
Apr 18
12:07pm
ONT
23h 3m
ATL
Apr 19
11:10am
LHR
as low as
$425
Los Angeles, US (LAX) - London, GB (LON)
Apr 23
12:07pm
ONT
23h 3m
ATL
Apr 24
11:10am
LHR
as low as
$425
Flights to London
Return flights
Flights From London To Ontario International AirportBrowse origins
- Flights
- North America
- United States
- California
- Los Angeles
- Ontario International Airport
Browse destinations
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- Europe
- United Kingdom
- London
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