Cheap Alaska Airlines flights Kalispell (FCA) to Ontario (ONT)

Landing cheap one-way Alaska Airlines flights from FCA to ONT on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Or check out our affordable return 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.

January is one of the most affordable months to jet off to Ontario with Alaska Airlines. You could also find great deals on return and one-way tickets in April.

Start searching one to three months before your departure to find cheap fares on Alaska Airlines flights from Glacier Park Intl. Airport (FCA) 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 cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic flights.*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.

Click on the “Nonstop” filter when looking for direct Alaska Airlines flights from FCA to ONT. It’s also a great way to compare other airlines servicing the same direct trip.

Browse Alaska Airlines’s earliest flights from FCA to ONT by using our “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures also experience 20% 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.

Los Angeles - Ontario Intl. Airport (ONT) is the main Ontario gateway for Alaska Airlines flights from Glacier Park Intl. Airport (FCA).

Alaska Airlines makes traveling from FCA to ONT more comfortable with an excellent in-flight experience and a rewarding loyalty program. You also have the chance to earn points with Mileage Plan. Don’t forget to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee may apply if you change or cancel your booking more than 24 hours after confirmation. To find flexible fares, select our “No cancel fee” or “Changes included” filter when searching for flights. For more details on canceling or modifying your reservation, go to “Trips,” select your flight and click on “Manage Booking.”