Cheap flights from Austin to Seattle from $128

In general, January is the cheapest month to fly from Austin to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $217. If you don’t want to visit Seattle in January, then you should wait until February to fly from Austin, when ticket prices are also cheap, with an average price of $262.

On average, the least expensive day to fly to Seattle from Austin is on a Thursday. momondo users have found tickets for Thursday departures for as low as $375. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Austin because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $568.

Flying to Seattle from Austin at noon is the least expensive time of day to depart. momondo users have found prices as low as $407 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $430. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Austin Bergstrom to Seattle/Tacoma Intl for the best Austin Bergstrom - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $315 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Austin for as low as $279 on momondo.

No. A direct flight is the cheapest option for a flight between Austin to Seattle.

As of May 2026, prices for Austin to Seattle flights are approximately 6% more expensive when compared to flights at the same time last year.

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

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Seattle from Austin according to our data. Alaska Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% of flights between Austin and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 169 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

As of May 2026, there are 12 flights per day flying from Austin to Seattle. The most common time of day flights depart is 6:00AM, with 54% of flights taking off at noon.

As of May 2026, 87 flights take off from Austin and land in Seattle each week. The most common flight departure day for this route is Fri, with 18% of weekly flights taking off on this day.