Cheap flights from Austin to Seattle from $53
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Seattle departing on 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Austin to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Austin and Seattle?
What is the cheapest month to fly to Seattle?
In general, September 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 $262. If you don’t want to visit Seattle in September, then you should wait until October to fly from Austin, when ticket prices are also cheap, with an average price of $276.
What is the cheapest day to depart on your flight to Seattle?
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 $389. 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 $506.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Austin in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $378 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $512. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Austin Bergstrom to Seattle/Tacoma Intl flight route?
Fly from Austin Bergstrom to Seattle/Tacoma Intl for the best Austin Bergstrom - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
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 $341 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 $290 on momondo.
What cabin class options are available on Austin Bergstrom to Seattle/Tacoma Intl flights?
There are 4 cabin classes available to choose from on Austin Bergstrom to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Austin to Seattle flights?
No. A direct flight is the cheapest option for a flight between Austin to Seattle.
How have Austin to Seattle flight prices changed over time?
As of July 2025, prices for Austin to Seattle flights are approximately 28% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Austin Bergstrom to Seattle/Tacoma Intl?
Frontier, Delta, and United Airlines are the most popular carriers operating from Austin Bergstrom to Seattle/Tacoma Intl
What airlines fly to Seattle?
Alaska Airlines, Delta and American 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 57% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
How many flights depart from Austin to Seattle on average per day?
As of July 2025, there are 21 flights per day flying from Austin to Seattle. The most common time of day flights depart is 9:00AM, with 69% of flights taking off at noon.
How many flights depart from Austin to Seattle on average per week?
As of July 2025, 147 flights take off from Austin and land in Seattle each week. The most common flight departure day for this route is Wed, with 21% of weekly flights taking off on this day.
When to book flights from Austin to Seattle
Cheap Austin to Seattle (AUS to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Austin to Seattle
How far is Austin Bergstrom to Seattle/Tacoma Intl by plane?
Austin Bergstrom and Seattle/Tacoma Intl are 1768.1 mi apart from one another. A reasonable flight in good conditions will take 4h 23m.
When did momondo last update prices for flights from Austin Bergstrom Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Austin Bergstrom Airport to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Austin Bergstrom Airport to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Austin Bergstrom Airport to Seattle/Tacoma Intl Airport is 8 as of July 2025.
How old do you have to be to fly from Austin Bergstrom Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Austin Bergstrom Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Austin to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Austin to Seattle is Boeing 737-900 Passenger/BBJ3 (winglets) (25.72% of total bookings). The next most popular plane models are Boeing 737 (25.21%), Boeing 737 MAX 9 (21.70%), and Boeing 737-800 Passenger/BBJ2 (winglets) (11.92%).
What is the most popular airline from Austin to Seattle?
momondo data reveals that the most frequently booked airline on the route from Austin to Seattle is Alaska Airlines, representing 53% of all bookings. The subsequent popular airlines are Delta at 32%, Hawaiian Airlines at 5%, and American Airlines at 4%.
Best airlines flying from Austin to Seattle
Compare and see reviews for airlines that fly from Austin to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $84 | Free Cancellation | Rating 6.3 8,086 reviews | |||
| PriceFrom $138 | Free Cancellation | Rating 5.9 3,286 reviews | |||
| PriceFrom $151 | Free Cancellation | Rating 7.8 2,545 reviews | |||
| PriceFrom $177 | Free Cancellation | Rating 8.0 7,982 reviews | |||
| PriceFrom $196 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $216 | Free Cancellation | Rating 7.4 8,861 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 8.0 4,266 reviews | |||
| PriceFrom $257 | Free Cancellation | Rating 7.2 10,000 reviews |
Delta Flights From Austin to Seattle
Delta is one of the most popular airlines flying from Austin to Seattle, operating 11 flights/week on average for this route. A good Delta flight deal for Austin to Seattle starts from $177 round-trip, up to an average price of $332. Our users have rated Delta at 8.0/10.
Alaska Airlines Flights From Austin to Seattle
Alaska Airlines (8.0/10 from 10,000 reviews) operates around 15 flights from Austin to Seattle in any given week. The average Alaska Airlines airfare for this route is around $357, with deals from around $196 rare but found on momondo. Referenced prices are for round-trip Austin to Seattle flight searches in the last 72 hours.
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Why should I use momondo to find a flight deal from Austin to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Austin to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from Austin to Seattle with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Austin to Seattle flights to just show those with flexible booking policies.
How can momondo help me find flights from Austin to Seattle?
momondo helps you find the best flight between Austin and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Austin to Seattle right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Austin to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.