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On average save $240 per traveler
05/29/25
3:10pm
BOS
6h 1m
JFK
05/29/25
9:11pm
ONT
06/01/25
10:59pm
ONT
12h 43m
JFK
06/02/25
11:42am
BOS
$290
Free cancellation within 83 hours of booking
05/24/25
4:25pm
BOS
5h 51m
SLC
05/24/25
10:16pm
ONT
05/31/25
7:00am
ONT
8h 35m
Direct
05/31/25
3:35pm
BOS
$291
Free cancellation within 83 hours of booking
05/28/25
6:50am
BOS
5h 25m
SLC
05/28/25
12:15pm
ONT
05/31/25
5:01pm
ONT
13h 24m
SLC
06/01/25
6:25am
BOS
$296
Free cancellation within 83 hours of booking
05/25/25
6:50am
BOS
5h 25m
SLC
05/25/25
12:15pm
ONT
05/29/25
12:45pm
ONT
11h 11m
MSP
05/29/25
11:56pm
BOS
$296
Free cancellation within 83 hours of booking
05/24/25
4:25pm
BOS
5h 51m
SLC
05/24/25
10:16pm
ONT
05/29/25
12:21pm
ONT
11h 25m
DTW
05/29/25
11:46pm
BOS
$296
Free cancellation within 83 hours of booking
05/31/25
6:50am
BOS
5h 25m
SLC
05/31/25
12:15pm
ONT
06/03/25
4:05pm
ONT
14h 35m
SEA
06/04/25
6:40am
BOS
$301
Free cancellation within 83 hours of booking
05/29/25
7:25am
BOS
6h 50m
SEA
05/29/25
2:15pm
ONT
06/03/25
4:05pm
ONT
14h 35m
SEA
06/04/25
6:40am
BOS
$301
Free cancellation within 83 hours of booking
05/17/25
6:50am
BOS
5h 25m
SLC
05/17/25
12:15pm
ONT
05/24/25
2:15pm
ONT
11h 2m
ATL
05/25/25
1:17am
BOS
$312
Free cancellation within 83 hours of booking
05/21/25
6:50am
BOS
5h 25m
SLC
05/21/25
12:15pm
ONT
05/29/25
12:21pm
ONT
11h 25m
DTW
05/29/25
11:46pm
BOS
$336
Free cancellation within 83 hours of booking
06/02/25
6:00am
BOS
17h 57m
PDX
06/02/25
11:57pm
ONT
06/11/25
9:35am
ONT
14h 31m
SEA
06/12/25
12:06am
BOS
$344
Free cancellation within 83 hours of booking
05/30/25
6:45am
BOS
5h 5m
PHX
05/30/25
11:50am
ONT
06/03/25
2:00pm
ONT
8h 34m
Direct
06/03/25
10:34pm
BOS
$352
Free cancellation within 83 hours of booking
05/30/25
6:52pm
BOS
27h 54m
SEA
05/31/25
10:46pm
ONT
06/03/25
6:31pm
ONT
11h 9m
SFO
06/04/25
5:40am
BOS
$353
Free cancellation within 83 hours of booking
06/02/25
3:10pm
BOS
6h 1m
JFK
06/02/25
9:11pm
ONT
06/09/25
10:40pm
ONT
13h 2m
JFK
06/10/25
11:42am
BOS
$359
Free cancellation within 83 hours of booking
05/28/25
3:10pm
BOS
6h 1m
JFK
05/28/25
9:11pm
ONT
06/04/25
10:59pm
ONT
12h 43m
JFK
06/05/25
11:42am
BOS
$359
Free cancellation within 83 hours of booking
05/23/25
5:35am
BOS
6h 15m
DFW
05/23/25
11:50am
ONT
05/31/25
10:27pm
ONT
8h 33m
Direct
06/01/25
7:00am
BOS
$363
Free cancellation within 83 hours of booking
05/20/25
5:40am
BOS
5h 28m
ATL
05/20/25
11:08am
ONT
05/24/25
2:15pm
ONT
11h 2m
ATL
05/25/25
1:17am
BOS
$367
Free cancellation within 83 hours of booking
05/20/25
6:52pm
BOS
16h 5m
SEA
05/21/25
10:57am
ONT
05/24/25
5:21pm
ONT
13h 59m
SEA
05/25/25
7:20am
BOS
$367
Free cancellation within 83 hours of booking
05/27/25
5:40am
BOS
5h 28m
ATL
05/27/25
11:08am
ONT
05/30/25
7:20pm
ONT
11h
SLC
05/31/25
6:20am
BOS
$367
Free cancellation within 83 hours of booking
05/24/25
2:41pm
BOS
6h 24m
CLT
05/24/25
9:05pm
ONT
05/31/25
7:25pm
ONT
10h 35m
PHX
06/01/25
6:00am
BOS
$382
Free cancellation within 83 hours of booking
05/31/25
12:35pm
BOS
5h 48m
PHX
05/31/25
6:23pm
ONT
06/07/25
2:40pm
ONT
10h 50m
DFW
06/08/25
1:30am
BOS
$388
Free cancellation within 83 hours of booking
05/23/25
6:52pm
BOS
27h 54m
SEA
05/24/25
10:46pm
ONT
06/05/25
7:20pm
ONT
28h 46m
SEA
06/07/25
12:06am
BOS
$392
Free cancellation within 83 hours of booking
05/26/25
6:50am
BOS
5h 25m
SLC
05/26/25
12:15pm
ONT
05/29/25
12:21pm
ONT
11h 25m
DTW
05/29/25
11:46pm
BOS
$397
Free cancellation within 83 hours of booking
06/03/25
5:35am
BOS
6h 15m
DFW
06/03/25
11:50am
ONT
06/10/25
12:55pm
ONT
10h 15m
PHX
06/10/25
11:10pm
BOS
$406
Free cancellation within 83 hours of booking
05/15/25
3:10pm
BOS
6h 1m
JFK
05/15/25
9:11pm
ONT
05/17/25
9:00pm
ONT
13h 54m
FLL
05/18/25
10:54am
BOS
$407
Free cancellation within 83 hours of booking
05/23/25
5:35am
BOS
6h 15m
DFW
05/23/25
11:50am
ONT
05/28/25
7:55am
ONT
13h 43m
CLT
05/28/25
9:38pm
BOS
$412
Free cancellation within 83 hours of booking
06/06/25
5:00am
BOS
6h 59m
DFW
06/06/25
11:59am
ONT
06/10/25
11:32am
ONT
11h 6m
ORD
06/10/25
10:38pm
BOS
$417
Free cancellation within 83 hours of booking
05/14/25
7:25am
BOS
6h 50m
SEA
05/14/25
2:15pm
ONT
05/21/25
9:50am
ONT
14h 6m
SLC
MSP
05/21/25
11:56pm
BOS
$445
Free cancellation within 83 hours of booking
05/29/25
5:35am
BOS
8h 17m
DFW
05/29/25
1:52pm
ONT
06/01/25
9:50pm
ONT
11h 30m
CLT
06/02/25
9:20am
BOS
$471
Free cancellation within 83 hours of booking
06/08/25
7:31am
BOS
5h
DEN
06/08/25
12:31pm
ONT
06/15/25
6:41pm
ONT
11h 23m
SFO
06/16/25
6:04am
BOS
$587
Free cancellation within 83 hours of booking
05/15/25
2:41pm
BOS
7h 16m
CLT
PHX
05/15/25
9:57pm
ONT
05/18/25
7:09pm
ONT
14h 11m
PHX
CLT
05/19/25
9:20am
BOS
$697
Free cancellation within 83 hours of booking
Top Deals on flights from Boston to Ontario International Airport
Boston, US (BOS) - Los Angeles, US (LAX)
Apr 24
12:29pm
BOS
6h 11m
DFW
Apr 24
6:40pm
ONT
as low as
$124
Boston, US (BOS) - Los Angeles, US (LAX)
May 24
4:25pm
BOS
5h 51m
SLC
May 24
10:16pm
ONT
as low as
$148
Boston, US (BOS) - Los Angeles, US (LAX)
May 29
7:25am
BOS
6h 50m
SEA
May 29
2:15pm
ONT
as low as
$148
Boston, US (BOS) - Los Angeles, US (LAX)
Aug 31
6:00am
BOS
5h 7m
ATL
Aug 31
11:07am
ONT
as low as
$148
Boston, US (BOS) - Los Angeles, US (LAX)
May 5
2:45pm
BOS
6h 40m
JFK
May 5
9:25pm
ONT
as low as
$154
Boston, US (BOS) - Los Angeles, US (LAX)
May 30
5:35am
BOS
6h 15m
DFW
May 30
11:50am
ONT
as low as
$184
Boston, US (BOS) - Los Angeles, US (LAX)
May 25
3:37pm
BOS
5h 33m
IAH
May 25
9:10pm
ONT
as low as
$184
Boston, US (BOS) - Los Angeles, US (LAX)
Jul 4
10:40am
BOS
7h 50m
ORD
Jul 4
6:30pm
ONT
as low as
$184
Boston, US (BOS) - Los Angeles, US (LAX)
Jul 4
2:54pm
BOS
6h 39m
CLT
Jul 4
9:33pm
ONT
as low as
$184
Boston, US (BOS) - Los Angeles, US (LAX)
Jun 17
6:00am
BOS
17h 59m
PDX
Jun 17
11:59pm
ONT
as low as
$186
Boston, US (BOS) - Los Angeles, US (LAX)
May 28
3:00pm
BOS
6h 58m
LGA
DFW
May 28
9:58pm
ONT
as low as
$189
Boston, US (BOS) - Los Angeles, US (LAX)
May 5
2:45pm
BOS
6h 40m
JFK
May 5
9:25pm
ONT
as low as
$195
Flights to Los Angeles
Return flights
Flights From Ontario International Airport To BostonBrowse origins
- Flights
- North America
- United States
- Massachusetts
- Boston
Browse destinations
- Flights
- North America
- United States
- California
- Los Angeles
- Ontario International Airport
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