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Ontario International Airport to Portland flight
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Cheap Flights from Ontario International Airport to Portland

Search for flights from Ontario International Airport to Portland and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • ONT13:06
        2h 20m
        Direct
        PDX15:26
        Ontario - Portland|Wed, May 8|Frontier Airlines
        CAD 27CAD 51
        46% OFF
        46% OFF
        CAD 51CAD 27
      • ONT13:54
        2h 20m
        Direct
        PDX16:14
        Ontario - Portland|Tue, May 28|Frontier Airlines
        CAD 29CAD 51
        43% OFF
        43% OFF
        CAD 51CAD 29
      • ONT12:20
        2h 20m
        Direct
        PDX14:40
        Ontario - Portland|Tue, May 14|Frontier Airlines
        CAD 33CAD 51
        34% OFF
        34% OFF
        CAD 51CAD 33
      • ONT13:26
        2h 20m
        Direct
        PDX15:46
        Ontario - Portland|Sat, May 11|Frontier Airlines
        CAD 33
        CAD 33
      • ONT15:35
        2h 20m
        Direct
        PDX17:55
        Ontario - Portland|Sat, May 18|Frontier Airlines
        CAD 34
        CAD 34
      • ONT13:06
        2h 20m
        Direct
        PDX15:26
        Ontario - Portland|Wed, May 1|Frontier Airlines
        CAD 34
        CAD 34
      • ONT12:20
        2h 20m
        Direct
        PDX14:40
        Ontario - Portland|Tue, Apr 30|Frontier Airlines
        CAD 34
        CAD 34
      • ONT13:54
        2h 20m
        Direct
        PDX16:14
        Ontario - Portland|Tue, May 21|Frontier Airlines
        CAD 34
        CAD 34
      • ONT12:20
        2h 20m
        Direct
        PDX14:40
        Ontario - Portland|Tue, May 7|Frontier Airlines
        CAD 35
        CAD 35
      • ONT13:01
        2h 20m
        Direct
        PDX15:21
        Ontario - Portland|Wed, May 15|Frontier Airlines
        CAD 35
        CAD 35
      • ONT13:00
        3h 5m
        Direct
        PDX14:00
        Los Angeles - Portland|Sun, May 5|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from Ontario International Airport to Portland

See which airlines fly from Ontario International Airport to Portland. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

Frontier Airlines
From CAD 27
Delta Air Lines
From CAD 120
United Airlines
From CAD 151
Southwest Airlines
From CAD 181
Alaska Airlines
From CAD 197
American Airlines
From CAD 293
ANA airlines
Find more flights and airlines

Flight Info of Flights from Ontario International Airport to Portland

Cheapest return ticket price

CAD 123

Cheapest direct flight price

CAD 69

Cheapest month

April

Peak season for travel

October

FAQs for Ontario International Airport to Portland Flights

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