CA $144 Cheap Flights from Ontario (ONT) to Portland (PDX)

View CA $144 flight on Sat, May 2, 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Portland International Airport (PDX)

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Cheap flights from Ontario (ONT) to Portland (PDX)

Prices were available within the past 7 days and start at CA $144 for one-way flights and CA $275 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, May 5 - Sat, May 9
ONT
Ontario
PDX
Portland
CA $275 Roundtrip, found 4 days ago
CA $275
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, May 5 from Ontario to Portland, returning Sat, May 9, priced at CA $275 found 4 days ago
Alaska Airlines
Thu, May 7 - Sat, May 9
ONT
Ontario
PDX
Portland
CA $289 Roundtrip, found 4 days ago
CA $289
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, May 7 from Ontario to Portland, returning Sat, May 9, priced at CA $289 found 4 days ago
Alaska Airlines
Fri, May 8 - Sun, May 10
ONT
Ontario
PDX
Portland
CA $303 Roundtrip, found 4 days ago
CA $303
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, May 8 from Ontario to Portland, returning Sun, May 10, priced at CA $303 found 4 days ago
Alaska Airlines
Fri, May 8 - Sun, May 10
ONT
Ontario
PDX
Portland
CA $330 Roundtrip, found 4 days ago
CA $330
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, May 8 from Ontario to Portland, returning Sun, May 10, priced at CA $330 found 4 days ago
Delta
Fri, May 8 - Sun, May 10
ONT
Ontario
PDX
Portland
CA $339 Roundtrip, found 4 days ago
CA $339
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, May 8 from Ontario to Portland, returning Sun, May 10, priced at CA $339 found 4 days ago
Alaska Airlines
Sat, May 9 - Sun, May 10
ONT
Ontario
PDX
Portland
CA $343 Roundtrip, found 4 days ago
CA $343
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 9 from Ontario to Portland, returning Sun, May 10, priced at CA $343 found 4 days ago
Alaska Airlines
Sat, May 9 - Sun, May 10
ONT
Ontario
PDX
Portland
CA $344 Roundtrip, found 4 days ago
CA $344
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 9 from Ontario to Portland, returning Sun, May 10, priced at CA $344 found 4 days ago
Delta
Fri, May 8 - Sun, May 10
ONT
Ontario
PDX
Portland
CA $362 Roundtrip, found 4 days ago
CA $362
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, May 8 from Ontario to Portland, returning Sun, May 10, priced at CA $362 found 4 days ago
United
Sat, May 9 - Sun, May 10
ONT
Ontario
PDX
Portland
CA $404 Roundtrip, found 4 days ago
CA $404
Roundtrip
found 4 days ago
Select United flight, departing Sat, May 9 from Ontario to Portland, returning Sun, May 10, priced at CA $404 found 4 days ago
American Airlines
Thu, Apr 23 - Mon, Apr 27
ONT
Ontario
PDX
Portland
CA $423 Roundtrip, found 4 days ago
CA $423
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Apr 23 from Ontario to Portland, returning Mon, Apr 27, priced at CA $423 found 4 days ago

Alternative airports near Portland

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Portland Intl. PDX. Cheapest and Closest option available. Average driving time to city centre is 17 minutes. Flights from CA $374
PDX
Portland Intl.
CheapestClosest
Average driving time to city centre17 min
Flights from CA $374

Frequently asked questions

How much is a flight from ONT to PDX?
The lowest price advertised for a round-trip journey from ONT to Portland Intl. Airport (PDX) is CA $275. But you better get a move on. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from ONT to Portland Intl. Airport (PDX)?
The majority of flights can be cancelled online, but every airline has its own terms and conditions. If you do decide to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from ONT to Portland Intl. Airport (PDX) that have flexible change policies?
Many airlines will allow you to reschedule your flight without a change fee. All you pay is the fare difference. When searching for Ontario Airport to Portland Intl. Airport (PDX) flights, you'll find a "No change fees" filter for you to pick.
How many hours is the flight from ONT to Portland Airport?
It takes just 5 hours and 24 minutes to jet from ONT to PDX — just enough time for a short snooze. You'll be landing in Portland by the time you open your eyes.
How far is the flight from ONT to Portland Intl. Airport (PDX)?
You won't need a lengthy novel for this flight — it's only 1,350 kilometres from Ontario to Portland. Find your seat, order some food and you'll be there before you know it.
Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to Portland Airport?
One airline that operates on the route from ONT to PDX Airport is Alaska Airlines (AS). It offers 78 monthly flights. You could also have a look at the fares on offer with Frontier Airlines (F9). This airline operates 8 flights every month between Ontario and Portland.
Are ONT to PDX flight tickets cheaper when they're purchased at the last minute?
Flight prices fluctuate, so it's no sure thing. While last-minute deals between Ontario Airport and PDX Airport are possible, it's also a good idea to keep a close eye on prices well before you fly. In fact, some carriers advertise their prices up to 12 months ahead of the departure date. Expedia is constantly updating the biggest bargains around, so check back often and be ready to pounce when the price is right.

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
Portland Intl.
Roundtrip price
CA $274
Distance
1342 km
Average flight time
2 hours 27 mins

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