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Cheap flights from Austin to Seattle from C$ 238

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SEA
22 Aug — 29 Aug1
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 April, booked 62 days in advance, depart on a Tuesday or Monday 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 23 July 2026.

Sat 15/87:07 p.m.
AUS
-
SEA
Nonstop4h 28m
Alaska Airlines
Tue 18/86:19 p.m.
SEA
-
AUS
Nonstop4h 12m
Alaska Airlines
Deal found 22/7C$ 390
Tue 18/86:00 a.m.
AUS
-
SEA
1 stop16h 35m
Alaska Airlines
Wed 19/89:00 a.m.
SEA
-
AUS
Nonstop4h 11m
Alaska Airlines
Deal found 18/7C$ 395
Tue 18/86:15 a.m.
AUS
-
SEA
Nonstop4h 25m
Delta
Tue 25/87:15 a.m.
SEA
-
AUS
Nonstop4h 11m
Delta
Deal found 22/7C$ 404
Tue 18/812:00 p.m.
AUS
-
SEA
2 stops10h 15m
Southwest
Tue 25/82:00 p.m.
SEA
-
AUS
Nonstop4h 15m
Southwest
Deal found 19/7C$ 412
Wed 9/95:52 p.m.
AUS
-
SEA
1 stop6h 47m
Alaska Airlines
Sat 12/99:03 a.m.
SEA
-
AUS
Nonstop4h 18m
Alaska Airlines
Deal found 22/7C$ 419
Fri 11/97:59 p.m.
AUS
-
SEA
1 stop15h 21m
Alaska Airlines
Sat 19/911:37 a.m.
SEA
-
AUS
Nonstop4h 27m
Alaska Airlines
Deal found 21/7C$ 423
Tue 18/88:30 a.m.
AUS
-
SEA
Nonstop4h 28m
Alaska Airlines
Tue 1/98:48 a.m.
SEA
-
AUS
1 stop11h 39m
Alaska Airlines
Deal found 22/7C$ 437
Wed 23/96:00 a.m.
AUS
-
SEA
1 stop8h 39m
Alaska Airlines
Wed 23/93:51 p.m.
SEA
-
AUS
1 stop6h 08m
Alaska Airlines
Deal found 20/7C$ 438
Sat 3/105:30 p.m.
AUS
-
SEA
1 stop6h 10m
Southwest
Sat 10/1011:40 a.m.
SEA
-
AUS
2 stops9h 15m
Southwest
Deal found 21/7C$ 440

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 23 July 2026.

Round-trip from

C$ 390

One-way from

C$ 238

Popular in

July

Cheapest in

January

Average price

C$ 619
Alaska Airlines
  • Alaska Airlines
  • 15/8-18/8
  • Nonstop
  • 8h 40m total
  • Austin to Seattle
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 11/8
  • Nonstop
  • 4h 28m total
  • Austin to Seattle
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (C$ 163 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 23 July 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

Tue 18/8

4:17 p.m.-6:47 p.m.

Nonstop4h 30m

Seattle/Tacoma Intl

Sat 22/8

7:08 a.m.-4:49 p.m.

1 stop7h 41m

C$ 419

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 29/8

7:07 p.m.-9:36 p.m.

Nonstop4h 29m

Seattle/Tacoma Intl

Tue 1/9

8:49 p.m.-1:15 p.m.

1 stop14h 26m

C$ 419

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Mon 21/9

7:59 p.m.-9:20 a.m.

1 stop15h 21m

Seattle/Tacoma Intl

Sat 26/9

5:06 p.m.-11:14 p.m.

Nonstop4h 08m

C$ 423

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Wed 19/8

12:00 p.m.-8:15 p.m.

2 stops10h 15m

Seattle/Tacoma Intl

Sat 22/8

6:00 a.m.-4:40 p.m.

2 stops8h 40m

C$ 447

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Fri 21/8

8:30 a.m.-11:00 a.m.

Nonstop4h 30m

Seattle/Tacoma Intl

Sat 29/8

11:59 a.m.-11:59 p.m.

1 stop10h 00m

C$ 447

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 8/10

6:11 p.m.-8:50 p.m.

Nonstop4h 39m

Seattle/Tacoma Intl

Sun 18/10

7:15 a.m.-1:35 p.m.

Nonstop4h 20m

C$ 475

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 8/10

7:04 p.m.-9:39 p.m.

Nonstop4h 35m

Seattle/Tacoma Intl

Sun 18/10

8:15 a.m.-2:38 p.m.

Nonstop4h 23m

C$ 475

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Fri 28/8

4:14 p.m.-6:46 p.m.

Nonstop4h 32m

Seattle/Tacoma Intl

Fri 28/8

7:50 p.m.-1:15 p.m.

1 stop15h 25m

C$ 475
Quickest round-trip

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 27/8

6:15 a.m.-8:40 a.m.

Nonstop4h 25m

Seattle/Tacoma Intl

Sun 30/8

5:55 p.m.-11:58 p.m.

Nonstop4h 03m

C$ 488

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 27/8

6:00 a.m.-11:40 p.m.

1 stop19h 40m

Seattle/Tacoma Intl

Sun 30/8

9:00 a.m.-3:11 p.m.

Nonstop4h 11m

C$ 493

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/7

Showing 1-10 of 24 resultsSorted by cheapest first
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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?

The best time to book flights from Austin to Seattle is 61 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, January is the cheapest month in which you can book a flight from Austin to Seattle (average of C$ 313). Flying from Austin to Seattle in July is currently the most expensive (average of C$ 619). 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 23 July 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 75% on flights from Austin to Seattle by exploring options for tickets in the evening.

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 C$ 466 and C$ 710 in August.
The cheapest round-trip price found within the last 5 days was C$ 390 on Alaska Airlines (15 Aug-18 Aug).

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 5 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 30m. 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 Scandinavian Airlines (91%), Aeromexico (90%) and Korean Air (90%).

  • 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 C$ 313). Flying from Austin to Seattle in July is currently the most expensive (average of C$ 619). 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
SeaTac
Kent
Leavenworth
Mukilteo
Tacoma
Renton
Cashmere
Lynnwood
Ellensburg
Tukwila
Olympia
Marysville
Federal Way
Kirkland

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