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Flight Deals from Ontario International Airport to Montreal from $164

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Bundle + Save

Top flight deals from leading airlines:

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... and +100s more

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Stops

Up to 2 stops
$446

Airlines

American Airlines
$446
United Airlines
$446

Cabin Class

Economy
$446

Departure Airports

Ontario International Airport
$446

Arrival Airports

Montreal Trudeau Airport
$446

Layover Airports

Charlotte Douglas International Airport
$1019
Chicago O Hare Airport
$774
Denver International Airport
$446
Newark Liberty Airport
$446
Philadelphia International Airport
$446
Phoenix Sky Harbor International Airport
$446
San Francisco International Airport
$567

Best Price. GUARANTEED.

Exclusively for Priceline Members
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On average save $240 per traveler
United Airlines Logo
United Airlines

06/17/25

6:32pm
ONT
14h 47m
DEN
EWR
United Airlines Logo
United Airlines

07/10/25

8:05am
YUL
6h 53m
DEN
$446
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

06/30/25

7:05pm
ONT
17h 19m
PHX
PHL
American Airlines Logo
American Airlines

07/11/25

7:50am
YUL
8h 38m
PHL
$446
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

06/24/25

6:41pm
ONT
14h 38m
SFO
EWR
United Airlines Logo
United Airlines

07/11/25

8:05am
YUL
6h 53m
DEN
$567
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

06/30/25

7:05pm
ONT
17h 19m
PHX
PHL
American Airlines Logo
American Airlines

07/11/25

7:50am
YUL
10h 13m
PHL
PHX
$575
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

07/01/25

7:05pm
ONT
17h 19m
PHX
PHL
American Airlines Logo
American Airlines

07/09/25

12:59pm
YUL
20h 6m
PHL
PHX
$580
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

06/24/25

6:41pm
ONT
14h 38m
SFO
EWR
United Airlines Logo
United Airlines

07/11/25

6:45pm
YUL
2h 50m
Direct
$690
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

07/03/25

12:55pm
ONT
23h 29m
PHX
PHL
American Airlines Logo
American Airlines

07/13/25

7:50am
YUL
16h 3m
PHL
$728
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

06/30/25

5:05am
ONT
16h 24m
DEN
ORD
United Airlines Logo
United Airlines

07/11/25

6:00am
YUL
8h 44m
EWR
$774
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

06/24/25

6:41pm
ONT
14h 38m
SFO
EWR
United Airlines Logo
United Airlines

07/11/25

8:05am
YUL
12h 42m
DEN
SFO
$929
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

06/24/25

4:50pm
ONT
29h 54m
PHX
CLT
American Airlines Logo
American Airlines

07/08/25

5:29pm
YUL
15h 55m
ORD
$1019
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

06/30/25

5:05am
ONT
16h 24m
DEN
ORD
United Airlines Logo
United Airlines

07/11/25

6:00am
YUL
14h 47m
EWR
SFO
$1027
Free cancellation within 83 hours of booking

Top Deals on flights from Ontario International Airport to Montreal

Los Angeles, US (LAX) - Montreal, CA (YMQ)

Air Canada Logo
Air Canada

May 10

6:00am
ONT
14h 5m
SFO

as low as

$164

Los Angeles, US (LAX) - Montreal, CA (YMQ)

Air Canada Logo
Air Canada

May 11

5:05am
ONT
10h 21m
DEN

as low as

$164

Los Angeles, US (LAX) - Montreal, CA (YMQ)

United Airlines Logo
United Airlines

May 13

5:05am
ONT
10h 21m
DEN

as low as

$164

Los Angeles, US (LAX) - Montreal, CA (YMQ)

American Airlines Logo
American Airlines

May 13

2:44pm
ONT
24h 5m
DFW

as low as

$169

Los Angeles, US (LAX) - Montreal, CA (YMQ)

American Airlines Logo
American Airlines

Apr 18

7:25pm
ONT
18h 14m
PHX
CLT

as low as

$169

Los Angeles, US (LAX) - Montreal, CA (YMQ)

United Airlines Logo
United Airlines

May 12

4:15pm
ONT
18h 13m
DEN
ORD

as low as

$169

Los Angeles, US (LAX) - Montreal, CA (YMQ)

United Airlines Logo
United Airlines

May 13

4:15pm
ONT
23h 35m
DEN
IAD

as low as

$174

Los Angeles, US (LAX) - Montreal, CA (YMQ)

United Airlines Logo
United Airlines

Apr 21

6:10am
ONT
25h 38m
IAH
DCA

as low as

$175

Los Angeles, US (LAX) - Montreal, CA (YMQ)

Delta Air Lines Logo
Delta Air Lines

Apr 20

6:00am
ONT
17h 28m
SLC
DTW

as low as

$175

Los Angeles, US (LAX) - Montreal, CA (YMQ)

Air Canada Logo
Air Canada

May 11

5:05am
ONT
14h 29m
DEN
YWG

as low as

$196

Los Angeles, US (LAX) - Montreal, CA (YMQ)

Air Canada Logo
Air Canada

May 3

5:05am
ONT
14h 16m
DEN
YYZ

as low as

$203

Los Angeles, US (LAX) - Montreal, CA (YMQ)

American Airlines Logo
American Airlines

May 4

7:25pm
ONT
16h 56m
PHX
PHL

as low as

$213
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