$119 Cheap Alaska Airlines flights Pasco (PSC) to Ontario (ONT)

View $119 flight on Thu, Sep 11, 2025Opens in a new window

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$119 Cheap Alaska Airlines flights Pasco (PSC) to Ontario (ONT)

Prices were available within the past 7 days and start at $119 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Pasco (PSC) to Ontario (ONT)
Origin airport
Tri-Cities
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Popular airline
Delta
Distance
846 mi

Frequently asked questions

How much is an Alaska Airlines flight from Tri-Cities Airport (PSC) to Los Angeles - Ontario Intl. Airport (ONT)?
Scoring cheap one-way Alaska Airlines flights from PSC to ONT from $119 on Expedia is a breeze --- just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares for your next getaway.**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.
What is the cheapest month to fly from PSC to ONT with Alaska Airlines?
January is one of the least expensive months to jet away to Ontario with Alaska Airlines. You could also find fantastic deals on return and one-way tickets in April.
What is the cheapest time to book flights from Tri-Cities Airport (PSC) to Los Angeles - Ontario Intl. Airport (ONT) with Alaska Airlines?
Begin your search one to three months before your departure to find cheaper fares on Alaska Airlines flights from Tri-Cities Airport (PSC) to Los Angeles - Ontario Intl. Airport (ONT). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Nail your timing, and you can enjoy significant savings on domestic journeys.*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.
Does Alaska Airlines fly nonstop from Tri-Cities Airport (PSC) to Los Angeles - Ontario Intl. Airport (ONT)?
To see if there's a direct trip from PSC to ONT with Alaska Airlines or other airlines, check the "Nonstop" filter when looking for tickets.
What is the earliest Alaska Airlines flight from PSC to ONT?
To find the earliest departures from PSC to ONT with Alaska Airlines, filter your results by "Early Morning" and "Morning." Choosing an early flight generally means you're less likely to experience 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.
What airports does Alaska Airlines fly into in Ontario?
Hop on an Alaska Airlines flight from Tri-Cities Airport (PSC) to Ontario, and you'll likely come in to Los Angeles - Ontario Intl. Airport (ONT). This is the airline's main hub here.
Why fly with Alaska Airlines from PSC to ONT?
Offering an excellent in-flight experience and a rewarding loyalty program, Alaska Airlines is the leading choice for many travelers heading from PSC to ONT. Plus, if you're a Mileage Plan and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can go toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Alaska Airlines flight from Tri-Cities Airport (PSC) to Los Angeles - Ontario Intl. Airport (ONT)?
In most cases, you can change or cancel your flight, although there may be additional charges if you made your booking over 24 hours ago. Need flexible options? Apply the "Changes included" or "No cancel fee" filter to find flights that won't charge you extra if you have to revise your plans. To make changes, visit "Trips," select your flight and click on "Manage Booking" for more information.

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*Available to One Key members.