Cheap flights from Austin to Seattle from $119

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 12/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Alaska Airlines Logo
7:00 am - 9:36 amAUS-SEA
4h 36mnonstop
Alaska Airlines Logo
9:09 am - 3:14 pmSEA-AUS
4h 05mnonstop
$197Alaska Airlines
Find Deal
Sat, Nov 8 - Tue, Nov 11
Frontier Logo
10:17 pm - 12:07 pmAUS-SEA
15h 50m2 stops
Frontier Logo
2:31 pm - 12:33 amSEA-AUS
8h 02m1 stop
$198Frontier
Find Deal
Fri, Oct 24 - Mon, Oct 27
Frontier Logo
9:23 pm - 8:39 pmAUS-SEA
25h 16m1 stop
Frontier Logo
7:00 am - 10:00 pmSEA-AUS
13h 00m1 stop
$203Frontier
Find Deal
Fri, Sep 26 - Sat, Oct 4
Frontier Logo
6:00 am - 12:07 pmAUS-SEA
8h 07m1 stop
Frontier Logo
8:43 pm - 9:21 amSEA-AUS
10h 38m1 stop
$206Frontier
Find Deal
Wed, Oct 8 - Sat, Oct 11
Hawaiian Airlines Logo
2:59 pm - 8:38 pmAUS-SEA
7h 39m1 stop
Hawaiian Airlines Logo
9:04 am - 3:10 pmSEA-AUS
4h 06mnonstop
$207Hawaiian Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
Alaska Airlines Logo
6:00 am - 11:46 amAUS-SEA
7h 46m1 stop
Alaska Airlines Logo
5:50 pm - 11:56 pmSEA-AUS
4h 06mnonstop
$211Alaska Airlines
Find Deal
Wed, Oct 22 - Sat, Oct 25
United Airlines Logo
8:00 am - 1:30 pmAUS-SEA
7h 30m1 stop
United Airlines Logo
11:58 pm - 8:51 amSEA-AUS
6h 53m1 stop
$212United Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 20
Delta Logo
6:20 am - 8:54 amAUS-SEA
4h 34mnonstop
Delta Logo
7:20 am - 1:34 pmSEA-AUS
4h 14mnonstop
$217Delta
Find Deal
Sat, Oct 4 - Tue, Oct 7
United Airlines Logo
4:43 pm - 9:24 pmAUS-SEA
6h 41m1 stop
United Airlines Logo
5:00 am - 3:22 pmSEA-AUS
8h 22m2 stops
$222United Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
Hawaiian Airlines Logo
7:15 am - 9:42 amAUS-SEA
4h 27mnonstop
Hawaiian Airlines Logo
9:15 am - 3:26 pmSEA-AUS
4h 11mnonstop
$257Hawaiian Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27

Alaska Airlines flights from Austin to Seattle

Our best Alaska Airlines deals on Austin to Seattle flight tickets
Alaska Airlines
Nov 8
AUS7:00 amAustin Bergstrom
4h 36m
SEA9:36 amSeattle/Tacoma Intl
Nov 11
SEA9:09 amSeattle/Tacoma Intl
4h 05m
AUS3:14 pmAustin Bergstrom
Alaska Airlines
Oct 22
AUS6:00 amAustin Bergstrom
7h 46m
1 stop
SEA11:46 amSeattle/Tacoma Intl
Oct 25
SEA5:50 pmSeattle/Tacoma Intl
4h 06m
AUS11:56 pmAustin Bergstrom
Alaska Airlines
Oct 1
AUS6:00 amAustin Bergstrom
9h 45m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
Oct 18
SEA8:15 pmSeattle/Tacoma Intl
14h 16m
1 stop
AUS12:31 pmAustin Bergstrom

Frontier flights from Austin to Seattle

Our best Frontier deals on Austin to Seattle flight tickets
Frontier
Oct 24
AUS10:17 pmAustin Bergstrom
15h 50m
2 stops
SEA12:07 pmSeattle/Tacoma Intl
Oct 27
SEA2:31 pmSeattle/Tacoma Intl
8h 02m
1 stop
AUS12:33 amAustin Bergstrom
Frontier
Sep 26
AUS9:23 pmAustin Bergstrom
25h 16m
1 stop
SEA8:39 pmSeattle/Tacoma Intl
Oct 4
SEA7:00 amSeattle/Tacoma Intl
13h 00m
1 stop
AUS10:00 pmAustin Bergstrom
Frontier
Oct 8
AUS6:00 amAustin Bergstrom
8h 07m
1 stop
SEA12:07 pmSeattle/Tacoma Intl
Oct 11
SEA8:43 pmSeattle/Tacoma Intl
10h 38m
1 stop
AUS9:21 amAustin Bergstrom

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 September 1, 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

Sat 11/8

7:00 am-9:36 am

Nonstop4h 36m

Seattle/Tacoma Intl

Tue 11/11

9:09 am-3:14 pm

Nonstop4h 05m

$197

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Fri 10/24

10:17 pm-12:07 pm

2 stops15h 50m

Seattle/Tacoma Intl

Mon 10/27

2:31 pm-12:33 am

1 stop8h 02m

$198

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Fri 9/26

9:23 pm-8:39 pm

1 stop25h 16m

Seattle/Tacoma Intl

Sat 10/4

7:00 am-10:00 pm

1 stop13h 00m

$203

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Wed 10/8

6:00 am-12:07 pm

1 stop8h 07m

Seattle/Tacoma Intl

Sat 10/11

8:43 pm-9:21 am

1 stop10h 38m

$206

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 9/27

2:59 pm-8:38 pm

1 stop7h 39m

Seattle/Tacoma Intl

Sat 10/4

9:04 am-3:10 pm

Nonstop4h 06m

$207

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Wed 10/22

6:00 am-11:46 am

1 stop7h 46m

Seattle/Tacoma Intl

Sat 10/25

5:50 pm-11:56 pm

Nonstop4h 06m

$211

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 9/20

8:00 am-1:30 pm

1 stop7h 30m

Seattle/Tacoma Intl

Sat 9/20

11:58 pm-8:51 am

1 stop6h 53m

$212

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 10/4

6:20 am-8:54 am

Nonstop4h 34m

Seattle/Tacoma Intl

Tue 10/7

7:20 am-1:34 pm

Nonstop4h 14m

$217

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 9/27

4:43 pm-9:24 pm

1 stop6h 41m

Seattle/Tacoma Intl

Sat 10/4

5:00 am-3:22 pm

2 stops8h 22m

$222

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 9/20

7:15 am-9:42 am

Nonstop4h 27m

Seattle/Tacoma Intl

Sat 9/27

9:15 am-3:26 pm

Nonstop4h 11m

$257

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, October 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 $267. If you don’t want to visit Seattle in October, 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 $391. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday 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 $525.

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 $390 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $488. Departure times in the evening 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 $337 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 $277 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.

Can stopping save me money on Austin to Seattle flights?

No. A direct flight is the cheapest option for a flight between Austin to Seattle.

How have Austin to Seattle flight prices changed over time?

As of September 2025, prices for Austin to Seattle flights are approximately 8% 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

$158

Fastest flight time

4h 25m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Austin in the past 72 hours is $158. The best round-trip flight deal from Austin to Seattle found on momondo in the last 72 hours is $270.
The fastest flight from Austin to Seattle takes 4h 25m
Direct flights go from Austin to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
  • 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 27m.

  • 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
8,009 reviews
Search Spirit Airlines flights
FrontierPriceFrom $138Free CancellationRating
5.8
3,200 reviews
Search Frontier flights
SouthwestPriceFrom $143Free CancellationRating
8.0
4,239 reviews
Search Southwest flights
Hawaiian AirlinesPriceFrom $146Free CancellationRating
7.8
2,701 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $178Free CancellationRating
7.9
7,974 reviews
Search Delta flights
Alaska AirlinesPriceFrom $201Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
8,936 reviews
Search United Airlines flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Southwest Flights From Austin to Seattle

    Southwest is one of the most popular airlines flying from Austin to Seattle, operating 6 flights/week on average for this route. A good Southwest flight deal for Austin to Seattle starts from $143 round-trip, up to an average price of $423. Our users have rated Southwest at 8.0/10.

  • Alaska Airlines Flights From Austin to Seattle

    Alaska Airlines (8.0/10 from 10,000 reviews) operates around 11 flights from Austin to Seattle in any given week. The average Alaska Airlines airfare for this route is around $364, with deals from around $201 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
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Renton
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Cle Elum
Tukwila
Kirkland
Centralia
Lakewood
Shoreline
Fife
Redmond
Westport

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.

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1 adult
Sat 9/6
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