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Cheap flights from Austin to Seattle from $108

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Seattle departing on 1/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Austin to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:22 pm - 5:51 pm
AUS
-
SEA
24h 29m1 stop
Frontier Logo
9:23 pm - 11:45 am
SEA
-
AUS
12h 22m1 stop
$181Frontier
Mon, Jan 5 - Thu, Jan 8
Frontier Logo
6:45 am - 11:21 am
AUS
-
SEA
6h 36m1 stop
Frontier Logo
2:49 pm - 10:56 pm
SEA
-
AUS
6h 07m1 stop
$182Frontier
Thu, Jan 8 - Sat, Jan 10
Multiple Airlines Logo
7:15 am - 10:00 am
AUS
-
SEA
4h 45mnonstop
Multiple Airlines Logo
1:16 pm - 12:16 am
SEA
-
AUS
9h 00m1 stop
$183Multiple Airlines
Sat, Feb 14 - Sat, Feb 21
Frontier Logo
3:17 pm - 9:36 am
AUS
-
SEA
20h 19m2 stops
Frontier Logo
12:34 pm - 12:16 am
SEA
-
AUS
9h 42m1 stop
$186Frontier
Thu, Jan 15 - Thu, Jan 22
Alaska Airlines Logo
12:30 pm - 3:15 pm
AUS
-
SEA
4h 45mnonstop
Alaska Airlines Logo
9:49 am - 3:54 pm
SEA
-
AUS
4h 05mnonstop
$187Alaska Airlines
Thu, Jan 8 - Sat, Jan 10
Alaska Airlines Logo
7:15 am - 10:00 am
AUS
-
SEA
4h 45mnonstop
Alaska Airlines Logo
11:15 pm - 5:14 am
SEA
-
AUS
3h 59mnonstop
$188Alaska Airlines
Tue, Mar 10 - Thu, Mar 26
Multiple Airlines Logo
9:38 am - 4:29 pm
AUS
-
SEA
8h 51m1 stop
Multiple Airlines Logo
8:25 am - 4:39 pm
SEA
-
AUS
6h 14m1 stop
$189Multiple Airlines
Mon, Jan 12 - Wed, Jan 14
Frontier Logo
12:24 pm - 8:13 am
AUS
-
SEA
21h 49m2 stops
Frontier Logo
12:29 pm - 12:16 am
SEA
-
AUS
9h 47m1 stop
$191Frontier
Thu, Feb 19 - Sun, Feb 22
Frontier Logo
10:40 am - 11:19 am
AUS
-
SEA
26h 39m1 stop
Frontier Logo
9:25 pm - 11:43 am
SEA
-
AUS
12h 18m1 stop
$194Frontier
Wed, Feb 4 - Thu, Feb 5
American Airlines Logo
12:32 pm - 8:35 pm
AUS
-
SEA
10h 03m1 stop
American Airlines Logo
6:00 am - 4:09 pm
SEA
-
AUS
8h 09m1 stop
$196American Airlines
Tue, Jan 13 - Tue, Jan 20

Frontier flights from Austin to Seattle

Our best Frontier deals on Austin to Seattle flight tickets
Frontier
Jan 8
AUS6:45 amAustin Bergstrom
6h 36m
1 stop
SEA11:21 amSeattle/Tacoma Intl
Jan 10
SEA2:49 pmSeattle/Tacoma Intl
6h 07m
1 stop
AUS10:56 pmAustin Bergstrom
$182
Find similar
Frontier
Jan 15
AUS7:09 pmAustin Bergstrom
23h 19m
2 stops
SEA4:28 pmSeattle/Tacoma Intl
Jan 22
SEA12:34 pmSeattle/Tacoma Intl
9h 42m
1 stop
AUS12:16 amAustin Bergstrom
$186
Find similar
Frontier
Feb 19
AUS12:24 pmAustin Bergstrom
21h 49m
2 stops
SEA8:13 amSeattle/Tacoma Intl
Feb 22
SEA12:29 pmSeattle/Tacoma Intl
9h 47m
1 stop
AUS12:16 amAustin Bergstrom
$191
Find similar

Delta flights from Austin to Seattle

Our best Delta deals on Austin to Seattle flight tickets
Delta
Mar 12
AUS11:57 amAustin Bergstrom
4h 38m
SEA2:35 pmSeattle/Tacoma Intl
Mar 17
SEA11:00 amSeattle/Tacoma Intl
4h 14m
AUS5:14 pmAustin Bergstrom
$187
Find similar
Delta
Jan 8
AUS4:55 pmAustin Bergstrom
4h 43m
SEA7:38 pmSeattle/Tacoma Intl
Jan 18
SEA9:35 amSeattle/Tacoma Intl
4h 25m
AUS4:00 pmAustin Bergstrom
$197
Find similar
Delta
Jan 15
AUS1:59 pmAustin Bergstrom
10h 25m
1 stop
SEA10:24 pmSeattle/Tacoma Intl
Jan 20
SEA9:35 amSeattle/Tacoma Intl
4h 25m
AUS4:00 pmAustin Bergstrom
$198
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
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

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Mon 1/5

7:22 pm-5:51 pm

1 stop24h 29m

Seattle/Tacoma Intl

Thu 1/8

9:23 pm-11:45 am

1 stop12h 22m

$181

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 1/8

6:45 am-11:21 am

1 stop6h 36m

Seattle/Tacoma Intl

Sat 1/10

2:49 pm-10:56 pm

1 stop6h 07m

$182

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 2/14

7:15 am-10:00 am

Nonstop4h 45m

Seattle/Tacoma Intl

Sat 2/21

1:16 pm-12:16 am

1 stop9h 00m

$183

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 1/15

3:17 pm-9:36 am

2 stops20h 19m

Seattle/Tacoma Intl

Thu 1/22

12:34 pm-12:16 am

1 stop9h 42m

$186

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 1/8

12:30 pm-3:15 pm

Nonstop4h 45m

Seattle/Tacoma Intl

Sat 1/10

9:49 am-3:54 pm

Nonstop4h 05m

$187

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Tue 3/10

7:15 am-10:00 am

Nonstop4h 45m

Seattle/Tacoma Intl

Thu 3/26

11:15 pm-5:14 am

Nonstop3h 59m

$188

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Mon 1/12

9:38 am-4:29 pm

1 stop8h 51m

Seattle/Tacoma Intl

Wed 1/14

8:25 am-4:39 pm

1 stop6h 14m

$189

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Thu 2/19

12:24 pm-8:13 am

2 stops21h 49m

Seattle/Tacoma Intl

Sun 2/22

12:29 pm-12:16 am

1 stop9h 47m

$191

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Wed 2/4

10:40 am-11:19 am

1 stop26h 39m

Seattle/Tacoma Intl

Thu 2/5

9:25 pm-11:43 am

1 stop12h 18m

$194

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Tue 1/13

12:32 pm-8:35 pm

1 stop10h 03m

Seattle/Tacoma Intl

Tue 1/20

6:00 am-4:09 pm

1 stop8h 09m

$196

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Austin to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Austin to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $263. If you don’t want to visit Seattle in January, then you should wait until September to fly from Austin, when ticket prices are also cheap, with an average price of $277.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Austin is on a Thursday. momondo users have found tickets for Thursday departures for as low as $388. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Austin because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $538.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Austin in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $417 when looking at flights departing in the afternoon. Flights to Seattle are more costly at noon, with an average ticket price of $434. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Austin Bergstrom to Seattle/Tacoma Intl flight route?

Fly from Austin Bergstrom to Seattle/Tacoma Intl for the best Austin Bergstrom - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $328 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Austin for as low as $275 on momondo.

What cabin class options are available on Austin Bergstrom to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Austin Bergstrom to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Austin to Seattle flight prices changed over time?

As of December 2025, prices for Austin to Seattle flights are approximately 2% cheaper when compared to flights at the same time last year.

When to book flights from Austin to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Austin to Seattle (AUS to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to Seattle

Best Price Found

$188

Fastest flight time

4h 35m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Austin in the past 72 hours is $188. The best round-trip flight deal from Austin to Seattle found on momondo in the last 72 hours is $291.
The fastest flight from Austin to Seattle takes 4h 35m
Direct flights go from Austin to Seattle every day.
There is 1 airport in Seattle. From Austin there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • How far is Austin Bergstrom to Seattle/Tacoma Intl by plane?

    Austin Bergstrom and Seattle/Tacoma Intl are 1768.1 mi apart from one another. A reasonable flight in good conditions will take 4h 35m.

  • When did momondo last update prices for flights from Austin Bergstrom Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Austin Bergstrom Airport to Seattle/Tacoma Intl Airport are updated daily.

  • How many operators does momondo search for flights from Austin Bergstrom Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Austin Bergstrom Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Austin Bergstrom Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Austin to Seattle?

  • What is the most popular airline from Austin to Seattle?

Best airlines flying from Austin to Seattle

Compare and see reviews for airlines that fly from Austin to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $62Free CancellationRating
6.3
8,188 reviews
Search Spirit Airlines flights
FrontierPriceFrom $138Free CancellationRating
5.8
3,082 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $141Free CancellationRating
7.8
2,819 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $143Free CancellationRating
7.9
4,249 reviews
Search Southwest flights
DeltaPriceFrom $186Free CancellationRating
7.9
8,006 reviews
Search Delta flights
Alaska AirlinesPriceFrom $187Free CancellationRating
8.0
11,474 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
American AirlinesPriceFrom $276Free CancellationRating
7.2
11,053 reviews
Search American Airlines flights

  • Alaska Airlines Flights From Austin to Seattle

    Alaska Airlines is one of the most popular airlines flying from Austin to Seattle, operating 3 flights/week on average for this route. A good Alaska Airlines flight deal for Austin to Seattle starts from $187 round-trip, up to an average price of $346. Our users have rated Alaska Airlines at 8.0/10.

  • Delta Flights From Austin to Seattle

    Delta (7.9/10 from 8,006 reviews) operates around 15 flights from Austin to Seattle in any given week. The average Delta airfare for this route is around $330, with deals from around $186 rare but found on momondo. Referenced prices are for round-trip Austin to Seattle flight searches in the last 72 hours.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
Centralia
Westport
Kirkland
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Austin to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Austin to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Austin to Seattle with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Austin to Seattle flights to just show those with flexible booking policies.

How can momondo help me find flights from Austin to Seattle?

momondo helps you find the best flight between Austin and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Austin to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Austin to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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