Cheap flights from Seattle to Alaska from $154

If you don’t want to visit Alaska in January, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $337.

The cheapest day to depart from Seattle to Alaska is on a Thursday. Travelers who choose to depart for Alaska on a Thursday will often find tickets for as low as $402. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Alaska for around $444.

Our data shows that the cheapest Seattle to Alaska flights are usually those with departure times in the morning. Our users have found flights to Alaska in the morning for as low as $410. At noon is when there is more demand to fly to Alaska, so prices are often more expensive at around $478 per ticket.

Fly from Seattle/Tacoma Intl to Fairbanks for the best Seattle/Tacoma Intl - Alaska flight prices

You are more likely to see cheaper flights to Alaska from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Alaska for around $402 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Alaska from Seattle for as low as $349 on momondo.

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Alaska flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Hawaiian Airlines, Alaska Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Alaska

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Alaska from Seattle according to our data. Alaska Airlines is the first choice among our users, with 76% of people opting to fly with this airline when traveling to Alaska. Keep in mind that there are 4 different airlines that fly to Alaska on a routine basis, so you have a few additional options to choose from.

33 flights are operational daily from Seattle to Alaska as of February 2026. The most popular departure time for this route is 9:00PM, with 42% of flights per day taking off in the evening.

The number of flights available between Seattle and Alaska is 235 per week as of February 2026. The most frequent departure day is Wed, with 52% of weekly flights leaving on this day.