HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$169+ Cheap flights from Austin to Seattle (AUS - SEA)

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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SEA
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Austin to Seattle 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Austin Bergstrom to Seattle/Tacoma Intl are usually found in January or April, booked 62 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Austin to Seattle

Cheapest flights from Austin to Seattle
Explore the most affordable flight options available from Austin to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.

This Southwest deal was found by Cheapflights users on 7/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:35 pm
AUS
-
SEA
1 stop6h 05m
Southwest
Sat 8/223:05 pm
SEA
-
AUS
Nonstop4h 00m
Southwest
Deal found 7/29$277
This CheapOair deal was found by Cheapflights users on 7/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:47 pm
AUS
-
SEA
1 stop23h 52m
Frontier
Sun 8/309:29 pm
SEA
-
AUS
1 stop12h 23m
Frontier
Deal found 7/31$278
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Sat 8/228:15 pm
AUS
-
SEA
1 stop15h 04m
Frontier
Mon 8/247:06 pm
SEA
-
AUS
1 stop22h 24m
Frontier
Deal found 7/30$279
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:07 pm
AUS
-
SEA
Nonstop4h 29m
Alaska Airlines
Mon 8/318:49 pm
SEA
-
AUS
1 stop20h 30m
Alaska Airlines
Deal found 7/30$280
This Frontier deal was found by Cheapflights users on 7/30. 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.
Tue 8/186:15 am
AUS
-
SEA
1 stop9h 07m
Frontier
Wed 8/268:53 pm
SEA
-
AUS
1 stop12h 59m
Frontier
Deal found 7/30$281
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:55 am
AUS
-
SEA
2 stops9h 20m
Southwest
Thu 9/2412:35 pm
SEA
-
AUS
Nonstop4h 10m
Southwest
Deal found 7/27$282
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/26:15 am
AUS
-
SEA
1 stop9h 07m
Frontier
Tue 9/88:48 pm
SEA
-
AUS
2 stops20h 41m
Frontier
Deal found 7/27$283
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Mon 8/246:15 am
AUS
-
SEA
1 stop8h 05m
Multiple Airlines
Sat 8/295:06 pm
SEA
-
AUS
Nonstop4h 08m
Multiple Airlines
Deal found 7/30$284
This Expedia deal was found by Cheapflights users on 7/27. 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.
Sat 9/512:47 pm
AUS
-
SEA
1 stop28h 41m
Multiple Airlines
Tue 9/157:13 am
SEA
-
AUS
2 stops10h 06m
Multiple Airlines
Deal found 7/27$285
This Frontier deal was found by Cheapflights users on 7/30. 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.
Thu 9/2411:04 pm
AUS
-
SEA
1 stop12h 38m
Frontier
Sun 9/279:45 pm
SEA
-
AUS
1 stop11h 30m
Frontier
Deal found 7/30$286
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:11 pm
AUS
-
SEA
Nonstop4h 33m
Delta
Thu 9/177:16 am
SEA
-
AUS
Nonstop4h 11m
Delta
Deal found 7/29$287
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:00 am
AUS
-
SEA
1 stop15h 52m
Alaska Airlines
Sat 9/199:03 am
SEA
-
AUS
Nonstop4h 18m
Alaska Airlines
Deal found 7/31$288

Find flight deals from Austin to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Seattle (SEA). 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 August 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$277
(Southwest)

One-way from

$169
(American Airlines)

Popular in

July

Cheapest in

January

Average price

$375

Good round-trip deal

$363 or less

Good one-way deal

$213 or less
Provider with most accurate pricing for Austin Bergstrom-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Seattle/Tacoma Intl flights.
Search Deals
From Austin Bergstrom to Seattle/Tacoma Intl
Search Deals
One-way flight from Austin Bergstrom to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Austin Bergstrom to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Austin Bergstrom to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Seattle 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 August 1, 2026.
Use the filters below to find and compare flights from Austin to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Fri 8/21

8:35 pm-12:40 am

1 stop6h 05m

Seattle/Tacoma Intl

Sat 8/22

3:05 pm-9:05 pm

Nonstop4h 00m

$277

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Fri 8/21

6:15 am-8:40 am

Nonstop4h 25m

Seattle/Tacoma Intl

Sat 8/29

11:05 am-5:21 pm

Nonstop4h 16m

$287

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Mon 9/21

7:59 pm-10:25 am

1 stop16h 26m

Seattle/Tacoma Intl

Sat 9/26

5:06 pm-11:14 pm

Nonstop4h 08m

$288

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Tue 9/8

7:07 pm-9:36 pm

Nonstop4h 29m

Seattle/Tacoma Intl

Sat 9/19

11:32 am-10:27 pm

1 stop8h 55m

$307

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Tue 9/15

8:30 am-11:00 am

Nonstop4h 30m

Seattle/Tacoma Intl

Sun 9/27

3:53 pm-11:59 pm

1 stop6h 06m

$307

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Wed 9/9

7:07 pm-9:36 pm

Nonstop4h 29m

Seattle/Tacoma Intl

Fri 9/11

8:49 pm-1:15 pm

1 stop14h 26m

$307
Quickest round-trip

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 9/24

6:09 am-8:40 am

Nonstop4h 31m

Seattle/Tacoma Intl

Sun 9/27

5:50 pm-11:55 pm

Nonstop4h 05m

$327

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Wed 9/16

12:00 pm-8:20 pm

2 stops10h 20m

Seattle/Tacoma Intl

Wed 9/23

11:05 pm-12:45 pm

2 stops11h 40m

$327

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sun 9/13

7:07 pm-9:36 pm

Nonstop4h 29m

Seattle/Tacoma Intl

Mon 9/21

5:06 pm-11:14 pm

Nonstop4h 08m

$327

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Tue 8/25

8:30 am-11:00 am

Nonstop4h 30m

Seattle/Tacoma Intl

Thu 8/27

7:08 am-4:49 pm

1 stop7h 41m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Austin to Seattle

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 Austin to Seattle in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapTicketsDealPrice Accuracy1 starTrust Score*3 stars

*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 Austin-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub 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 Austin-Seattle 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 Austin to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Austin 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 Austin to Seattle

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

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Austin to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Austin to Seattle (average of $222). Flying from Austin to Seattle in July is currently the most expensive (average of $440). 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 AUS to SEA?

Find hourly flight availability from Austin to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 1, 2026.

A simple way to save on the total cost of your ticket is to fly from Austin to Seattle in the afternoon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Austin to Seattle. Price data was last updated on July 25, 2026.

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

How much does it cost to fly round-trip from Austin to Seattle?

Airfare is below average for this route at the moment.

Austin to Seattle flights typically cost between $316 and $481 in August.
The cheapest round-trip price found within the last 5 days was $277 on Southwest (Aug 21-Aug 22).

The best insider tips for Austin to Seattle 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 Austin to Seattle trip
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on Qatar Airways and SEA

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
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on AUS

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 Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated August 1, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from Austin to Seattle 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.
Southwest
8.0
Very good
4,229 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Southwest
8.0
Very good
4,229 reviews
Southwest
8.0
Very good
4,229 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Alaska Airlines
7.9
Good
12,742 reviews
Southwest
8.0
Very good
4,229 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Delta
7.8
Good
8,497 reviews
Southwest
8.0
Very good
4,229 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
American Airlines
7.1
Good
11,845 reviews
Southwest
8.0
Very good
4,229 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Frontier
5.6
Fair
2,740 reviews
Southwest
8.0
Very good
4,229 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Related info for your journey

Find useful and relevant information for your journey from Austin to Seattle. 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 Austin to Seattle?

    If you wish to fly to Seattle from Austin, then you need to book flights from Austin Bergstrom to Seattle/Tacoma Intl. There are 10 flights from Austin Bergstrom (AUS) to Seattle/Tacoma Intl (SEA) per day to choose from. Flights to Seattle from Austin Bergstrom are available from 7 different airlines, which means you should have some options if you want to compare airfare deals. 4h 23m is how long a nonstop flight from Austin to Seattle/Tacoma Intl typically takes.

  • How popular is this Austin to Seattle flight route?

    Within the past month, 31 users have taken a look at flights from Austin Bergstrom to Seattle/Tacoma Intl.

  • How long is the flight from Austin to Seattle?

    Departing from Austin to Seattle will take you 4h 25m. The distance from Austin to Seattle is about 1768 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $118, Hawaiian Airlines will fly you from Austin to Seattle and back. In addition to Hawaiian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Delta - these airlines can fly you to your destination from $139 and $178, respectively. Hawaiian Airlines is 63% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $95. Users have also found prices from $98 and $108 on Hawaiian Airlines and Delta, respectively.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Austin to Seattle on time: Scandinavian Airlines (91%), Aeromexico (90%), Korean Air (90%).

  • What are the cheapest flights from Austin to Seattle?

    Looking at all options, your cheapest flight can be booked for $158. While the most popular route (Austin Bergstrom - Seattle/Tacoma Intl) can be booked for $237 on average, our data indicates $1,872 when flying from Austin to Seattle.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Austin to Seattle 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 Austin to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Austin to Seattle (average of $222). Flying from Austin to Seattle in July is currently the most expensive (average of $440). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Edmonds
Tukwila
Snoqualmie
Tumwater
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Shoreline

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from Austin to Seattle

Discover the top 7 airlines that operate flights from Austin to Seattle. 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 August 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$118Average$277FlexibilityNo cancel feeOn-time85%
FrontierCheapest$139Average$300FlexibilityNo cancel feeOn-time62%
DeltaCheapest$178Average$368FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$179Average$363FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$218Average$346FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$240Average$397FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$296Average$567FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.