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Cheap flights from Austin to Seattle from C$ 149

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SEA
25 Feb — 4 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Austin Bergstrom to Seattle/Tacoma Intl are usually found in January or September, booked 82 days in advance, depart on a Monday or Tuesday and return on a Saturday

Cheap flight deals from Austin to Seattle

Enter your travel dates to find the best prices.

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 26 January 2026.

Tue 21/411:30 a.m.
AUS
-
SEA
Nonstop4h 43m
Delta
Wed 29/410:45 a.m.
SEA
-
AUS
Nonstop4h 05m
Delta
Deal found 25/1C$ 270
Thu 23/411:30 a.m.
AUS
-
SEA
Nonstop4h 43m
Delta
Sat 25/49:10 a.m.
SEA
-
AUS
Nonstop4h 10m
Delta
Deal found 26/1C$ 284
Tue 21/45:47 p.m.
AUS
-
SEA
1 stop6h 41m
Alaska Airlines
Sat 25/48:25 a.m.
SEA
-
AUS
1 stop6h 24m
Alaska Airlines
Deal found 25/1C$ 297
Sat 16/56:10 a.m.
AUS
-
SEA
Nonstop4h 35m
Delta
Tue 26/57:20 a.m.
SEA
-
AUS
Nonstop4h 13m
Delta
Deal found 26/1C$ 311
Sat 25/46:00 a.m.
AUS
-
SEA
Nonstop4h 39m
Alaska Airlines
Sat 25/411:35 a.m.
SEA
-
AUS
Nonstop4h 29m
Alaska Airlines
Deal found 25/1C$ 318
Tue 21/45:47 p.m.
AUS
-
SEA
1 stop6h 41m
Alaska Airlines
Thu 23/46:09 p.m.
SEA
-
AUS
Nonstop4h 15m
Alaska Airlines
Deal found 25/1C$ 325
Wed 6/56:00 a.m.
AUS
-
SEA
Nonstop4h 39m
Alaska Airlines
Mon 11/59:51 p.m.
SEA
-
AUS
1 stop16h 58m
Alaska Airlines
Deal found 25/1C$ 329
Wed 25/26:00 a.m.
AUS
-
SEA
1 stop7h 56m
Alaska Airlines
Wed 25/212:56 p.m.
SEA
-
AUS
1 stop7h 33m
Alaska Airlines
Deal found 25/1C$ 330
Sat 28/26:55 a.m.
AUS
-
SEA
1 stop8h 55m
Southwest
Sat 7/311:55 p.m.
SEA
-
AUS
2 stops11h 15m
Southwest
Deal found 26/1C$ 331
Wed 22/47:13 a.m.
AUS
-
SEA
2 stops15h 37m
Delta
Wed 29/45:45 p.m.
SEA
-
AUS
Nonstop4h 03m
Delta
Deal found 25/1C$ 336
Tue 17/26:10 a.m.
AUS
-
SEA
Nonstop4h 45m
Delta
Wed 11/35:45 p.m.
SEA
-
AUS
Nonstop4h 07m
Delta
Deal found 26/1C$ 338
Fri 27/38:35 a.m.
AUS
-
SEA
Nonstop4h 42m
Alaska Airlines
Mon 13/48:42 p.m.
SEA
-
AUS
1 stop18h 05m
Alaska Airlines
Deal found 26/1C$ 342

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 26 January 2026.

Round-trip from

C$ 270

One-way from

C$ 149

Popular in

July

Cheapest in

January

Average price

C$ 357
Delta
  • Delta
  • 22/4-28/4
  • Nonstop
  • 8h 43m total
  • Austin to Seattle
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 24/2
  • 1 total stop
  • 9h 10m total
  • Austin to Seattle
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 90 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 629,999 searches. Data last updated 26 January 2026.
Use the filters below to find and compare flights from Austin to Seattle that are best for you.

Fly from

Austin

Fly to

Seattle

Route

Depart

Return

Price

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 26/3

6:03 a.m.-8:45 a.m.

Nonstop4h 42m

Seattle/Tacoma Intl

Tue 14/4

10:45 a.m.-4:50 p.m.

Nonstop4h 05m

C$ 284

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 16/4

11:30 a.m.-2:13 p.m.

Nonstop4h 43m

Seattle/Tacoma Intl

Sun 19/4

7:15 a.m.-1:25 p.m.

Nonstop4h 10m

C$ 297

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 16/5

6:10 a.m.-8:45 a.m.

Nonstop4h 35m

Seattle/Tacoma Intl

Sun 24/5

7:20 a.m.-1:33 p.m.

Nonstop4h 13m

C$ 311

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Tue 10/3

7:15 a.m.-10:00 a.m.

Nonstop4h 45m

Seattle/Tacoma Intl

Mon 16/3

8:11 p.m.-1:28 p.m.

1 stop15h 17m

C$ 325

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 16/5

6:10 a.m.-8:45 a.m.

Nonstop4h 35m

Seattle/Tacoma Intl

Mon 25/5

7:20 a.m.-1:33 p.m.

Nonstop4h 13m

C$ 338

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Fri 27/3

8:35 a.m.-11:17 a.m.

Nonstop4h 42m

Seattle/Tacoma Intl

Mon 13/4

8:42 p.m.-4:47 p.m.

1 stop18h 05m

C$ 342

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 26/2

7:15 a.m.-10:00 a.m.

Nonstop4h 45m

Seattle/Tacoma Intl

Thu 26/2

11:49 a.m.-6:00 p.m.

Nonstop4h 11m

C$ 345

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 16/5

2:10 p.m.-7:48 p.m.

1 stop7h 38m

Seattle/Tacoma Intl

Sun 24/5

5:00 a.m.-1:14 p.m.

1 stop6h 14m

C$ 352

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Fri 20/2

7:15 a.m.-10:00 a.m.

Nonstop4h 45m

Seattle/Tacoma Intl

Wed 25/2

5:52 p.m.-11:59 p.m.

Nonstop4h 07m

C$ 366

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 16/5

7:15 a.m.-10:29 p.m.

1 stop17h 14m

Seattle/Tacoma Intl

Sun 24/5

5:45 p.m.-11:59 p.m.

Nonstop4h 14m

C$ 370

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/1

Showing 1-10 of 22 results
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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?

Use this chart to determine the optimal time to book a round-trip flight from Austin to Seattle. Price data was last updated on 23 January 2026.

The best time to book flights from Austin to Seattle is 82 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 Austin to Seattle?

Currently, May is the cheapest month in which you can book a flight from Austin to Seattle (average of C$ 138). Flying from Austin to Seattle in June is currently the most expensive (average of C$ 294). 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 26 January 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 51% on flights from Austin to Seattle by exploring options for tickets in the afternoon.

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.

  • How popular is this Austin to Seattle flight route?

    The Austin Bergstrom to Seattle/Tacoma Intl flight path was viewed by 9 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 Austin to Seattle?

    Departing from Austin to Seattle will take you 4h 42m. There are 2845 km between Austin and Seattle. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The top 3 most reliable airlines when flying from Austin to Seattle are Aeromexico (93%), WestJet (92%) and STARLUX Airlines (91%).

  • 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, May is the cheapest month in which you can book a flight from Austin to Seattle (average of C$ 138). Flying from Austin to Seattle in June is currently the most expensive (average of C$ 294). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
SeaTac
Mukilteo
Tacoma
Kent
Tukwila
Bothell
Cashmere
Olympia
Renton
Lynnwood
Marysville
Kirkland

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Why should you use Cheapflights to find cheap flight tickets from Austin to Seattle?

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Yes! Cheapflights helps users easily find flights from Austin to Seattle with no change fees.

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