฿7,975 Cheap Flights from Ontario (ONT) to Portland (PDX)

View ฿7,975 flight on Sun, 26 Oct 2025Opens 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 ฿7,975 for one-way flights and ฿14,155 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, 25 Oct - Wed, 29 Oct
ONT
Ontario
PDX
Portland
฿14,155 Return, found 1 day ago
฿14,155
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 25 Oct from Ontario to Portland, returning Wed, 29 Oct, priced at ฿14,155 found 1 day ago
Hawaiian Airlines
Tue, 28 Oct - Thu, 30 Oct
ONT
Ontario
PDX
Portland
฿15,460 Return, found 1 day ago
฿15,460
Return
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, 28 Oct from Ontario to Portland, returning Thu, 30 Oct, priced at ฿15,460 found 1 day ago

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

October is typically the cheapest month to fly

From ฿2,531 - ฿6,751 per traveller.

Frequently asked questions

How much is a flight from Los Angeles - Ontario Intl. Airport (ONT) to PDX?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip journey from ONT to PDX was ฿14,155. Cheap tickets don't hang around forever, so make sure you book yours ASAP. 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 Airport?
This varies between air carriers, as each one has its own set of terms and conditions. Visit the Customer Service Portal, where you'll find instructions on how to cancel online.
How do I find cheap flights from ONT to PDX 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 Los Angeles - Ontario Intl. Airport (ONT) to PDX Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from ONT to Portland Intl. Airport (PDX)?
That new movie you've been eager to see will have to wait — the flight distance between Los Angeles - Ontario Intl. Airport (ONT) (ONT) and Portland Airport (PDX) is only 1,350 kilometres. The captain will be instructing you to buckle up for landing before you know it.
Which airlines fly direct from ONT to PDX Airport?
Check out the deals on offer with Alaska Airlines (AS) if you want to fly straight from Los Angeles - Ontario Intl. Airport (ONT) to Portland Airport. This popular carrier offers 26 flights monthly, so you're sure to find one that fits your travel schedule.
Are Ontario Airport to PDX flight tickets cheaper when they're purchased at the last minute?
Booking your trip from ONT to Portland Intl. Airport (PDX) at the last minute could be your ticket to a cheap deal. However, it could end up costing you a whole lot more! If you'd rather play it safe, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to 12 months in advance. If your preferred carrier hasn't released tickets yet, check back regularly as deals are updated all the time on Expedia.

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
Portland Intl.
Return price
฿14,155
Distance
1342 km
Average flight time
2 hours 39 mins

Book with confidence

Perfect flights from Ontario to Portland

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Ontario to Portland. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Los Angeles - Ontario Intl. to Portland Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿7,975 and roundtrip prices from ฿14,155. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Portland Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Portland.
Perfect flights from Ontario to Portland

Explore a world of travel with Expedia

Ontario Airports

Los Angeles

Los Angeles Intl. to Portland
฿6,170.00
*Available to Expedia members.