$109 Cheap Alaska Airlines flights Austin (AUS) to Seattle (SEA)

Grab affordable round-trip Alaska Airlines flights from $185 from AUS to SEA by organizing your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $109 for a one-way trip.**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.

Search for round-trip or one-way flights to Seattle in January or February. You could find a cheap fare with Alaska Airlines during these off-peak months.

To find cheap Alaska Airlines fares from Austin-Bergstrom Intl. Airport (AUS) to Seattle - Tacoma Intl. Airport (SEA), start searching one to three months before your intended departure. Reserving 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 the price you pay. Sunday is generally the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight 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.

Skip the layovers and fly from Austin-Bergstrom Intl. Airport (AUS) to Seattle - Tacoma Intl. Airport (SEA) on one of Alaska Airlines’s 18 direct weekly flights. Make use of our “Nonstop” and “Airline” filters to find the Alaska Airlines flight that’ll arrive at SEA at your preferred time.

Leave Austin-Bergstrom Intl. Airport (AUS) for Seattle - Tacoma Intl. Airport (SEA) on a direct Alaska Airlines flight, and you’ll be airborne for around 4h 42m.

Saturday has the most Alaska Airlines flights from Austin-Bergstrom Intl. Airport (AUS) to Seattle - Tacoma Intl. Airport (SEA). With 3 daily departures, this is a great day to book something that will suit your schedule.

The earliest flight from AUS to SEA with Alaska Airlines leaves at 7:30AM UTC-6. You’ll land at 10:15AM UTC-8. The final Alaska Airlines flight of the day leaves at 7:19PM UTC-6 and arrives at 10:00PM UTC-8. With around 20% fewer cancellations for morning and mid-morning flights, beginning your travel day early is often the best choice.**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.

Seattle - Tacoma Intl. Airport (SEA) is the primary Seattle gateway for Alaska Airlines flights from Austin-Bergstrom Intl. Airport (AUS).

With top-tier customer service and an excellent in-flight experience, Alaska Airlines is a popular option for many travelers flying from AUS to SEA. 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 be put toward future getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

For the Austin-Bergstrom Intl. Airport (AUS) to Seattle - Tacoma Intl. Airport (SEA) route, Alaska Airlines typically uses Boeing 737-900 and Boeing 737 MAX 9 planes. Remember that last-minute changes can occur for operational purposes, so your flight could be on another aircraft.

Changes are usually free within 24 hours of making a booking, but your airline may add a charge after that. For more information about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to update your itinerary without additional charges, apply the “Changes included” and “No cancel fee” filters when organizing your trip.