￥21,480 Cheap Flights from Ontario (ONT) to Portland (PWM)

View ￥21,480 flight on Mon, Aug 4, 2025Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Portland Intl. Jetport Airport (PWM)

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Cheap Flights from Ontario to Portland (ONT-PWM)

Prices were available within the past 7 days and start at ￥21,480 for one-way flights and ￥64,780 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Aug 4 - Fri, Aug 8
ONT
Ontario
PWM
Portland
￥64,780 Roundtrip, found 1 day ago
￥64,780
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Aug 4 from Ontario to Portland, returning Fri, Aug 8, priced at ￥64,780 found 1 day ago
Delta
Mon, Aug 4 - Fri, Aug 8
ONT
Ontario
PWM
Portland
￥83,050 Roundtrip, found 1 day ago
￥83,050
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Aug 4 from Ontario to Portland, returning Fri, Aug 8, priced at ￥83,050 found 1 day ago
Delta
Wed, Jul 23 - Sun, Jul 27
ONT
Ontario
PWM
Portland
￥93,160 Roundtrip, found 1 day ago
￥93,160
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Jul 23 from Ontario to Portland, returning Sun, Jul 27, priced at ￥93,160 found 1 day ago
Delta
Wed, Jul 23 - Sun, Jul 27
ONT
Ontario
PWM
Portland
￥106,120 Roundtrip, found 1 day ago
￥106,120
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Jul 23 from Ontario to Portland, returning Sun, Jul 27, priced at ￥106,120 found 1 day ago
Delta
Wed, Jul 23 - Sun, Jul 27
ONT
Ontario
PWM
Portland
￥107,410 Roundtrip, found 1 day ago
￥107,410
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Jul 23 from Ontario to Portland, returning Sun, Jul 27, priced at ￥107,410 found 1 day ago
Delta
Wed, Jul 23 - Sun, Jul 27
ONT
Ontario
PWM
Portland
￥111,600 Roundtrip, found 1 day ago
￥111,600
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Jul 23 from Ontario to Portland, returning Sun, Jul 27, priced at ￥111,600 found 1 day ago

Find the cheapest month to fly from Ontario (ONT) to Portland (PWM)

September is typically the cheapest month to fly

From ￥35,994 - ￥86,804 per traveler.

Graph displaying average flight prices per month

Flights from Ontario (ONT) to Portland (PWM)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Portland Intl. Jetport
Airlines serving
Delta
Roundtrip price
￥64,780
Distance
4146 km

Ontario to Portland Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Ontario to will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Portland.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with ONT to PWM flights that won’t make your bank account wince. Ready to temporarily leave behind Ontario for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to PWM with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from ONT to Portland Intl. Jetport?
If you're traveling from Ontario Airport to Portland Intl. Jetport, round-trip flights start from ￥64,780. This price is based on airfares listed within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book now and save yourself both money and time. 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. Jetport Airport (PWM)?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Los Angeles - Ontario Intl. Airport (ONT) to Portland Intl. Jetport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Ontario Airport to Portland Intl. Jetport flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Ontario Airport to Portland Intl. Jetport Airport (PWM)?
Consider bringing your own on-board entertainment, as it takes an average of 6 hours and 45 minutes to jet to PWM from Ontario Airport. A set of noise-canceling earphones will be useful too.
How far is the flight from Ontario Airport to Portland Intl. Jetport Airport (PWM)?
With a flight distance of 4,200 kilometers from ONT (ONT) to Portland Intl. Jetport (PWM), this is a long-haul trip. Be sure to keep well hydrated and move your legs every so often.
Which airlines fly direct from ONT to Portland Intl. Jetport?
You won't find any airlines flying directly between Ontario Airport and Portland Intl. Jetport, so be prepared to make at least one stop on your journey. A layover, whether short or long, can be a welcome way to break up a trip!
Are Ontario Airport to Portland Intl. Jetport Airport (PWM) flight tickets cheaper when they're purchased at the last minute?
Flight prices always go up and down, so not always. While last-minute deals between Los Angeles - Ontario Intl. Airport (ONT) and PWM are possible, it also makes sense to keep track of prices well before you fly. In fact, some airlines announce their prices up to a year before the departure date. Expedia is constantly updating the best airfare bargains around, so keep checking back and be ready to pounce when the price is right.

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Ontario nearby Airports

Los Angeles

Los Angeles Intl. to Portland
￥43,720
*Available to Expedia members.