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$108+ Cheap flights from Seattle to Austin (SEA - AUS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — AUS
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Find cheap flights from Seattle to Austin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Austin Bergstrom are usually found in September or August, booked 81 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Seattle to Austin

Cheapest flights from Seattle to Austin
Explore the most affordable flight options available from Seattle to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Frontier deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:25 pmSEA - AUS
1 stop8h 49mFrontier
Mon 1/129:38 amAUS - SEA
1 stop8h 51mFrontier
Deal found 12/22$274
This Frontier deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:25 pmSEA - AUS
1 stop8h 49mFrontier
Sun 1/116:45 amAUS - SEA
1 stop6h 36mFrontier
Deal found 12/22$288
This Kiwi.com deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:25 pmSEA - AUS
2 stops18h 48mFrontier
Sat 1/1010:32 amAUS - SEA
1 stop26h 49mFrontier
Deal found 12/22$296
This Kiwi.com deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:25 pmSEA - AUS
2 stops18h 48mFrontier
Fri 1/93:01 pmAUS - SEA
1 stop24h 33mFrontier
Deal found 12/22$302
This Expedia deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:25 pmSEA - AUS
1 stop8h 49mFrontier
Sun 1/44:48 pmAUS - SEA
1 stop19h 23mFrontier
Deal found 12/21$308
This Expedia deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:25 pmSEA - AUS
1 stop8h 49mFrontier
Thu 1/88:13 pmAUS - SEA
1 stop25h 34mFrontier
Deal found 12/21$312
This Booking.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:25 pmSEA - AUS
1 stop8h 49mFrontier
Sat 1/1010:32 amAUS - SEA
1 stop26h 49mFrontier
Deal found 12/21$321
This Frontier deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:25 pmSEA - AUS
1 stop8h 49mFrontier
Thu 1/86:45 amAUS - SEA
1 stop6h 36mFrontier
Deal found 12/22$324
This Booking.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:25 pmSEA - AUS
1 stop8h 49mFrontier
Wed 1/710:32 amAUS - SEA
1 stop26h 49mFrontier
Deal found 12/21$342
This Kiwi.com deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:54 pmSEA - AUS
1 stop7h 20mFrontier
Sat 1/1010:32 amAUS - SEA
1 stop26h 49mFrontier
Deal found 12/22$382

Find flight deals from Seattle to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Austin (AUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$197
(Alaska Airlines)

One-way from

$108
(Alaska Airlines)

Popular in

December

Cheapest in

September

Average price

$412

Good round-trip deal

$251 or less

Good one-way deal

$178 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Austin Bergstrom flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Austin Bergstrom flights.
Search Deals
From Seattle/Tacoma Intl to Austin Bergstrom
Search Deals
One-way flight from Seattle/Tacoma Intl to Austin Bergstrom
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Austin Bergstrom.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Austin Bergstrom.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Austin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Seattle to Austin that are best for you.

Fly from

Seattle

Fly to

Austin

Route

Depart

Return

Price

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Wed 1/28

8:25 am-4:39 pm

1 stop6h 14m

Austin Bergstrom

Sun 2/1

6:58 pm-9:40 pm

Nonstop4h 42m

$198

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Tue 2/24

7:45 am-4:45 pm

1 stop7h 00m

Austin Bergstrom

Fri 2/27

7:00 pm-9:45 pm

Nonstop4h 45m

$198

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Sat 2/21

11:49 am-6:00 pm

Nonstop4h 11m

Austin Bergstrom

Tue 2/24

4:30 pm-10:39 pm

1 stop8h 09m

$198

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Wed 1/21

9:35 am-4:00 pm

Nonstop4h 25m

Austin Bergstrom

Fri 1/23

4:55 pm-7:38 pm

Nonstop4h 43m

$199

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Sun 1/25

9:35 am-4:00 pm

Nonstop4h 25m

Austin Bergstrom

Mon 1/26

4:55 pm-7:38 pm

Nonstop4h 43m

$199

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Mon 1/26

9:35 am-4:00 pm

Nonstop4h 25m

Austin Bergstrom

Thu 1/29

4:55 pm-7:38 pm

Nonstop4h 43m

$199

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Mon 1/5

6:33 pm-3:48 pm

1 stop19h 15m

Austin Bergstrom

Thu 1/8

8:13 pm-7:47 pm

1 stop25h 34m

$203

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Sun 1/25

8:25 am-4:39 pm

1 stop6h 14m

Austin Bergstrom

Mon 1/26

6:59 pm-9:41 pm

Nonstop4h 42m

$208

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Thu 1/29

5:52 pm-11:59 pm

Nonstop4h 07m

Austin Bergstrom

Sun 2/1

5:39 pm-10:33 pm

1 stop6h 54m

$208

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Mon 1/12

5:52 pm-11:59 pm

Nonstop4h 07m

Austin Bergstrom

Fri 1/16

3:39 pm-11:57 pm

1 stop10h 18m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from Seattle to Austin

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Austin in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Austin flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Austin flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Austin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Austin flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Austin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Austin

How far ahead should I book a flight from Seattle to Austin?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Austin. Price data was last updated on December 19, 2025.

The best time to book flights from Seattle to Austin is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Austin?

Currently, August is the cheapest month in which you can book a flight from Seattle to Austin (average of $123). Flying from Seattle to Austin in June is currently the most expensive (average of $222). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to AUS?

Find hourly flight availability from Seattle to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 11% on flights from Seattle to Austin by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Seattle to Austin?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Austin. Price data was last updated on December 20, 2025.

Travelers seeking maximum savings on their Seattle to Austin flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Seattle to Austin flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Austin trip
Airports
SEA

Plan to arrive at SEA at least two hours before your flight due to potentially long security lines.

Read more about SEABy Brandon Schultz
AUS

Use the CapMetro Route 20 bus for a budget-friendly ride from AUS to downtown Austin.

Read more about AUSBy Ramsey Qubein
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on AUS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Austin. Reviews last updated December 23, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Seattle to Austin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,517 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,517 reviews
Alaska Airlines
8.0
Very good
11,517 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
8,015 reviews
Alaska Airlines
8.0
Very good
11,517 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Hawaiian Airlines
7.8
Good
2,820 reviews
Alaska Airlines
8.0
Very good
11,517 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,050 reviews
Alaska Airlines
8.0
Very good
11,517 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Frontier
5.8
Fair
3,073 reviews
Alaska Airlines
8.0
Very good
11,517 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Seattle to Austin?

    You will need to book a flight from Seattle/Tacoma Intl to Austin Bergstrom if you want to fly from Seattle to Austin. At least 8 different airlines have flights from Seattle/Tacoma Intl (SEA) to Austin Bergstrom (AUS) on a regular basis. There are 17 flights to Austin from the Seattle airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SEA to AUS to be around 4h 05m.

  • How popular is this Seattle to Austin flight route?

    The Seattle/Tacoma Intl to Austin Bergstrom flight path was viewed by 14 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Austin?

    A quick flight from Seattle to Austin can take about 4h 25m. Alaska Airlines provides one of the quickest options available for as low as $199. Airlines will cover a distance of 1768 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Seattle to Austin round-trip?

    According to our current data, Spirit Airlines ($55), Hawaiian Airlines ($118), and Frontier ($130) offers the cheapest pricing from Seattle to Austin. These flights start at 84% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Austin one-way?

    The cheapest airlines for a one-way flight from Seattle to Austin are Spirit Airlines ($49), Frontier ($68), and Southwest ($98).

  • What are the most reliable airlines from Seattle to Austin?

    Consider Scandinavian Airlines (100%), Qatar Airways (91%) or STARLUX Airlines (90%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Austin.

  • What are the cheapest flights from Seattle to Austin?

    While on average a flight from Seattle to Austin is generally $436, our data shows the cheapest flight currently is $118. When looking at the most popular route, (Seattle/Tacoma Intl - Austin Bergstrom), you can expect to pay $148 for that flight.

  • Can I find deals for flights from Seattle to Austin that include hotel bookings?

    Yes. In addition to deals on Seattle to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Austin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Austin.

  • Can I find deals for business class flights from Seattle to Austin?

    Yes. Cheapflights offers flight deals from Seattle to Austin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Austin?

    Currently, August is the cheapest month in which you can book a flight from Seattle to Austin (average of $123). Flying from Seattle to Austin in June is currently the most expensive (average of $222). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Cedar Park
Round Rock
San Marcos
Georgetown
Pflugerville
Dripping Springs
Fredericksburg
Canyon Lake
Seguin
Horseshoe Bay

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Top 8 airlines flying from Seattle to Austin

Discover the top 8 airlines that operate flights from Seattle to Austin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$55Average$173FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$118Average$310FlexibilityNo cancel feeOn-time85%
FrontierCheapest$139Average$243FlexibilityNo cancel feeOn-time62%
DeltaCheapest$189Average$341FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$197Average$368FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$202Average$415FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$216Average$283FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$266Average$562FlexibilityNo cancel feeOn-time71%

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