$84 Cheap Flights from Seattle (SEA) to Austin (AUS)

View $84 flight on Fri, Oct 10, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS)

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Today's featured flight deals from Seattle-Tacoma International Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS)

Nonstop
Carry-on included
Lower price than typical

Cheap Flights from Seattle to Austin (SEA-AUS)

Prices were available within the past 7 days and start at $84 for one-way flights and $167 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Oct 29 - Mon, Nov 3
SEA
Seattle
AUS
Austin
$167 Roundtrip, just found
$167
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Oct 29 from Seattle to Austin, returning Mon, Nov 3, priced at $167 just found
Frontier Airlines
Thu, Sep 18 - Sun, Sep 21
SEA
Seattle
AUS
Austin
$174 Roundtrip, just found
$174
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Sep 18 from Seattle to Austin, returning Sun, Sep 21, priced at $174 just found
United
Tue, Nov 4 - Wed, Nov 12
SEA
Seattle
AUS
Austin
$187 Roundtrip, found 2 hours ago
$187
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Nov 4 from Seattle to Austin, returning Wed, Nov 12, priced at $187 found 2 hours ago
Frontier Airlines
Mon, Sep 29 - Wed, Oct 1
SEA
Seattle
AUS
Austin
$192 Roundtrip, found 15 hours ago
$192
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Mon, Sep 29 from Seattle to Austin, returning Wed, Oct 1, priced at $192 found 15 hours ago
Bargain Flight
Wed, Sep 10 - Wed, Sep 24
SEA
Seattle
AUS
Austin
$194 Roundtrip, found 4 hours ago
$194
Roundtrip
found 4 hours ago
Select Bargain Flight flight, departing Wed, Sep 10 from Seattle to Austin, returning Wed, Sep 24, priced at $194 found 4 hours ago
Frontier Airlines
Tue, Aug 26 - Thu, Sep 4
SEA
Seattle
AUS
Austin
$195 Roundtrip, found 23 hours ago
$195
Roundtrip
found 23 hours ago
Select Frontier Airlines flight, departing Tue, Aug 26 from Seattle to Austin, returning Thu, Sep 4, priced at $195 found 23 hours ago
Frontier Airlines
Thu, Sep 18 - Tue, Sep 23
SEA
Seattle
AUS
Austin
$197 Roundtrip, found 8 hours ago
$197
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Thu, Sep 18 from Seattle to Austin, returning Tue, Sep 23, priced at $197 found 8 hours ago
Alaska Airlines
Sat, Sep 20 - Sat, Sep 27
SEA
Seattle
AUS
Austin
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Sep 20 from Seattle to Austin, returning Sat, Sep 27, priced at $197 just found
Delta
Wed, Sep 17 - Tue, Sep 23
SEA
Seattle
AUS
Austin
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Delta flight, departing Wed, Sep 17 from Seattle to Austin, returning Tue, Sep 23, priced at $197 just found
Frontier Airlines
Mon, Sep 29 - Tue, Oct 7
SEA
Seattle
AUS
Austin
$199 Roundtrip, found 2 hours ago
$199
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Sep 29 from Seattle to Austin, returning Tue, Oct 7, priced at $199 found 2 hours ago

Find the cheapest month to fly from Seattle (SEA) to Austin (AUS)

March is typically the cheapest month to fly

From $131 - $426 per traveler.

Graph displaying average flight prices per month

Alternative airports near Austin

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Austin-Bergstrom Intl. AUS. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $331
AUS
Austin-Bergstrom Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $331
Flights from Seattle (SEA) to Austin (AUS)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Austin-Bergstrom Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$166
Distance
1768 mi
Average flight time
6 hours 10 mins

Seattle to Austin Flights

The cheapest times to fly from Seattle to Austin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Austin are during the month of October. You can find some of the cheapest flights from Seattle to Austin with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Austin

Sunday is one of the best days to book for cheap flights from Seattle to Austin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Austin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Austin in 2025. You can also book with separate airlines for your outbound and return journeys, from $84 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Austin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Austin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS) cost?
Grab a cheap one-way flight from $84 or cheap return flight from $167 from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS)?
October is the least expensive month to fly from SEA to AUS. Traveling during quieter months is often the key to finding better fares.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS)?
Take a nonstop flight with Alaska Airlines and travel straight from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS).
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS)?
While prices can change depending on your travel dates, Delta Air Lines and Alaska Airlines are go-to choices for flights between Seattle - Tacoma Intl. Airport (SEA) and Austin-Bergstrom Intl. Airport (AUS). You can also compare carriers on Expedia and use the "Sort by" filter to find the cheapest fare for your SEA to AUS flight.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS)?
When taking off from Seattle - Tacoma Intl. Airport (SEA), you can pick from an average of 3 daily direct flights to Austin-Bergstrom Intl. Airport (AUS).
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS)?
Flights between SEA and AUS are busiest at 9 AM. If you're after a more relaxed trip and possibly cheaper prices, choose a departure outside the usual busy windows.
What day of the week has the most flights from SEA to AUS?
If you depart on a Friday, you'll get the biggest range of choices for flights from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS)?
Seattle - Tacoma Intl. Airport (SEA)'s earliest flight to Austin-Bergstrom Intl. Airport (AUS) is at approximately 8:35AM UTC-8. With a total flight time of 4h 15m, you'll land at around 2:50PM UTC-6.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS)?
The average flight duration from SEA to AUS is 4 hours and 20 minutes, covering a distance of 1,750 mi.
What airline has the least delays from SEA to AUS?
With 86% of flights generally arriving on schedule, American Airlines has the best on-time performance for direct flights from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS). To monitor your flight status and get notifications about any changes, use the Expedia App.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS)?
To avoid potential delays on the Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS) route, travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Austin from Seattle - Tacoma Intl. Airport (SEA)?
If you're on a direct flight from Seattle - Tacoma Intl. Airport (SEA) to Austin, Austin-Bergstrom Intl. Airport (AUS) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS) last-minute?
Last-minute fares from SEA to AUS are generally more expensive. To secure the lowest prices, start looking for flights early. That being said, if you're flexible with your travel dates, you may find a cheap fare right before your journey.
Is it cheaper to book a SEA to AUS flight and hotel package?
Securing a SEA to AUS flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our impressive range of hotels and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Austin-Bergstrom Intl. Airport (AUS)?
If you reserved your SEA to AUS flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.