Find flights under $100 | Book with Alaska Airlines

Snag a Flight Deal Under $100

Spontaneity looks good on you. Whether you're discovering a new city or revisiting old stomping grounds, our daily flights under $100 put your next adventure within reach. Browse affordable one-way and round-trip fares from popular West Coast hubs like Seattle, the Bay Area, Los Angeles, and Portland, with deals to popular destinations like San Francisco, Las Vegas, and San Diego. Want to go even lower? Browse flights under $50 or check out our last minute flight deals. for last Want to expand your options instead? Check out our flights under $200 page.

Book one-way flight deals under $100*

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*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

Book round-trip flight deals under $100*

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*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

Flights Under $100: Frequently Asked Questions

How can I find flights under $100 on Alaska Airlines?

The fare deals on this page are updated regularly and show real one-way and round-trip prices under $100 seen within the past 24 hours. For the best selection, search flexible dates, fly midweek, and check fares from major West Coast hubs like Seattle, Portland, and the Bay Area, where sub-$100 routes are most common.

Are flights under $100 one-way or round-trip?

Both. Many sub-$100 fares are one-way Saver fares, but round-trip deals under $100 are also available on shorter West Coast routes. Each listing on this page shows whether the price is one-way or round-trip so you know exactly what you're booking.

What's the catch with fares under $100?

Most ultra-low fares are Saver fares, our most affordable fare type. They're a great value for budget travelers but come with some limits on seat selection, changes, and boarding order. Review the Saver fare details before booking.

When is the best time to book cheap flights under $100?

Booking a few weeks to a couple of months ahead and flying on Tuesdays, Wednesdays, or Saturdays tends to surface the lowest fares. Traveling outside peak holiday periods also improves your chances of finding a flight under $100.

Can I earn points on flights under $100?

Yes. You earn Atmos Rewards points on Saver fares and all other Alaska fare types, so even your cheapest flights count toward future travel.

Where can I find flights even cheaper than $100?

Browse our flight deals under $50 for the lowest fares we offer on select short-haul flights.