Cheap Alaska Airlines flights Portland (PDX) to Ontario (ONT)

Finding cheap one-way Alaska Airlines flights from PDX to ONT on Expedia is a cinch — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $153 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines flights to Ontario are generally cheaper in the low-season months of January and April. Whether you’re after a one-way or a return ticket, you could score a better deal then.

To find cheap Alaska Airlines fares from Portland Intl. Airport (PDX) to Los Angeles - Ontario Intl. Airport (ONT), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact what you pay. Sunday is typically the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Jet off on one of Alaska Airlines’s 18 weekly direct flights from Portland Intl. Airport (PDX) to Los Angeles - Ontario Intl. Airport (ONT). To view available options, enter your travel dates, origin and destination and hit search. Then apply the “Nonstop” and “Airline” filters.

It takes approximately 2h 19m to travel nonstop from Portland Intl. Airport (PDX) to Los Angeles - Ontario Intl. Airport (ONT) with Alaska Airlines.

If flexibility is what you’re after, Thursday offers the most choice for Alaska Airlines flights from Portland Intl. Airport (PDX) to Los Angeles - Ontario Intl. Airport (ONT). You can select from 3 different departures.

The earliest Alaska Airlines flight from PDX to ONT takes off at 8:13AM UTC-8, landing at 10:34AM UTC-8. If you’d like to jet off later, the last Alaska Airlines flight leaves PDX at 7:55PM UTC-8 and lands at ONT at 10:13PM UTC-8. Flying before noon is generally a good idea as morning flights tend to experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

When traveling from Portland Intl. Airport (PDX) to Ontario with Alaska Airlines, you’re most likely to land at Los Angeles - Ontario Intl. Airport (ONT). This is the airline’s primary hub here. Other nearby airports such as Los Angeles Intl. Airport (LAX) and John Wayne Airport (SNA) may have cheaper tickets, so it’s a good idea to consider all available options on Expedia.

Heading from PDX to ONT with Alaska Airlines comes with a host of perks, including top-tier customer service and an excellent in-flight experience. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to use on select future travel purchases. That’s in addition to the Mileage Plan points you can earn with Alaska Airlines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

For the Portland Intl. Airport (PDX) to Los Angeles - Ontario Intl. Airport (ONT) route, Alaska Airlines typically uses Embraer 175 and Boeing 737-900 planes. Keep in mind that last-minute changes are possible for operational demands, so your flight could be on a different aircraft.

Depending on the type of fare you purchased, a fee may apply if you modify or cancel your flight more than 24 hours after confirmation. To secure flexible fares, select our “No cancel fee” or “Changes included” filter while looking for flights. For more information on changing or canceling your reservation, go to “Trips,” select your flight and tick “Manage Booking.”