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 10/15. 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

Delta Logo
12:12 pm - 2:44 pmAUS-SEA
4h 32mnonstop
Delta Logo
7:20 am - 1:34 pmSEA-AUS
4h 14mnonstop
$197Delta
Find Deal
Fri, Oct 17 - Sun, Oct 19
Frontier Logo
6:00 am - 12:13 pmAUS-SEA
8h 13m1 stop
Frontier Logo
2:22 pm - 12:32 amSEA-AUS
8h 10m1 stop
$198Frontier
Find Deal
Sun, Nov 9 - Sun, Nov 16
Multiple Airlines Logo
8:15 am - 2:35 pmAUS-SEA
8h 20m1 stop
Multiple Airlines Logo
5:50 pm - 11:56 pmSEA-AUS
4h 06mnonstop
$199Multiple Airlines
Find Deal
Sat, Oct 18 - Sat, Oct 25
Frontier Logo
10:46 am - 3:45 pmAUS-SEA
6h 59m1 stop
Frontier Logo
1:02 pm - 12:33 amSEA-AUS
9h 31m1 stop
$200Frontier
Find Deal
Fri, Oct 3 - Thu, Oct 9
Southwest Logo
5:40 pm - 9:45 pmAUS-SEA
6h 05m1 stop
Southwest Logo
7:45 am - 6:30 pmSEA-AUS
8h 45m2 stops
$202Southwest
Find Deal
Sat, Oct 18 - Sat, Oct 25
Hawaiian Airlines Logo
8:15 am - 2:35 pmAUS-SEA
8h 20m1 stop
Hawaiian Airlines Logo
5:50 pm - 11:56 pmSEA-AUS
4h 06mnonstop
$207Hawaiian Airlines
Find Deal
Sat, Oct 11 - Wed, Oct 22
Alaska Airlines Logo
7:15 am - 9:47 amAUS-SEA
4h 32mnonstop
Alaska Airlines Logo
5:50 pm - 11:56 pmSEA-AUS
4h 06mnonstop
$211Alaska Airlines
Find Deal
Sat, Oct 18 - Mon, Oct 20
Alaska Airlines Logo
2:59 pm - 8:34 pmAUS-SEA
7h 35m1 stop
Alaska Airlines Logo
9:09 am - 3:14 pmSEA-AUS
4h 05mnonstop
$212Alaska Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
Hawaiian Airlines Logo
7:18 pm - 9:54 pmAUS-SEA
4h 36mnonstop
Hawaiian Airlines Logo
12:15 pm - 6:30 pmSEA-AUS
4h 15mnonstop
$227Hawaiian Airlines
Find Deal
Sat, Nov 15 - Sun, Nov 23
Southwest Logo
3:25 pm - 8:45 pmAUS-SEA
7h 20m1 stop
Southwest Logo
1:20 pm - 11:35 pmSEA-AUS
8h 15m2 stops
$233Southwest
Find Deal
Wed, Oct 15 - Wed, Oct 22

Frontier flights from Austin to Seattle

Our best Frontier deals on Austin to Seattle flight tickets
Frontier
Nov 9
AUS6:00 amAustin Bergstrom
8h 13m
1 stop
SEA12:13 pmSeattle/Tacoma Intl
Nov 16
SEA2:22 pmSeattle/Tacoma Intl
8h 10m
1 stop
AUS12:32 amAustin Bergstrom
Frontier
Oct 3
AUS10:46 amAustin Bergstrom
6h 59m
1 stop
SEA3:45 pmSeattle/Tacoma Intl
Oct 9
SEA1:02 pmSeattle/Tacoma Intl
9h 31m
1 stop
AUS12:33 amAustin Bergstrom
Frontier
Oct 9
AUS6:00 amAustin Bergstrom
8h 07m
1 stop
SEA12:07 pmSeattle/Tacoma Intl
Oct 10
SEA2:31 pmSeattle/Tacoma Intl
8h 02m
1 stop
AUS12:33 amAustin Bergstrom

Delta flights from Austin to Seattle

Our best Delta deals on Austin to Seattle flight tickets
Delta
Oct 17
AUS12:12 pmAustin Bergstrom
4h 32m
SEA2:44 pmSeattle/Tacoma Intl
Oct 19
SEA7:20 amSeattle/Tacoma Intl
4h 14m
AUS1:34 pmAustin Bergstrom
Delta
Oct 8
AUS4:15 pmAustin Bergstrom
8h 10m
1 stop
SEA10:25 pmSeattle/Tacoma Intl
Oct 15
SEA10:10 amSeattle/Tacoma Intl
9h 11m
1 stop
AUS9:21 pmAustin Bergstrom
Delta
Oct 8
AUS6:16 amAustin Bergstrom
4h 39m
SEA8:55 amSeattle/Tacoma Intl
Oct 11
SEA7:20 amSeattle/Tacoma Intl
4h 14m
AUS1:34 pmAustin 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 17, 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

Fri 10/17

12:12 pm-2:44 pm

Nonstop4h 32m

Seattle/Tacoma Intl

Sun 10/19

7:20 am-1:34 pm

Nonstop4h 14m

$197

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sun 11/9

6:00 am-12:13 pm

1 stop8h 13m

Seattle/Tacoma Intl

Sun 11/16

2:22 pm-12:32 am

1 stop8h 10m

$198

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 10/18

8:15 am-2:35 pm

1 stop8h 20m

Seattle/Tacoma Intl

Sat 10/25

5:50 pm-11:56 pm

Nonstop4h 06m

$199

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Fri 10/3

10:46 am-3:45 pm

1 stop6h 59m

Seattle/Tacoma Intl

Thu 10/9

1:02 pm-12:33 am

1 stop9h 31m

$200

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 10/18

5:40 pm-9:45 pm

1 stop6h 05m

Seattle/Tacoma Intl

Sat 10/25

7:45 am-6:30 pm

2 stops8h 45m

$202

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 10/11

8:15 am-2:35 pm

1 stop8h 20m

Seattle/Tacoma Intl

Wed 10/22

5:50 pm-11:56 pm

Nonstop4h 06m

$207

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 10/18

7:15 am-9:47 am

Nonstop4h 32m

Seattle/Tacoma Intl

Mon 10/20

5:50 pm-11:56 pm

Nonstop4h 06m

$211

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Tue 11/4

2:59 pm-8:34 pm

1 stop7h 35m

Seattle/Tacoma Intl

Tue 11/11

9:09 am-3:14 pm

Nonstop4h 05m

$212

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Sat 11/15

7:18 pm-9:54 pm

Nonstop4h 36m

Seattle/Tacoma Intl

Sun 11/23

12:15 pm-6:30 pm

Nonstop4h 15m

$227

AustinSeattle

AUS - SEA

AUSSEA

Austin Bergstrom

Wed 10/15

3:25 pm-8:45 pm

1 stop7h 20m

Seattle/Tacoma Intl

Wed 10/22

1:20 pm-11:35 pm

2 stops8h 15m

$233

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 $277. If you don’t want to visit Seattle in October, then you should wait until January to fly from Austin, when ticket prices are also cheap, with an average price of $286.

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 $394. 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 $524.

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 $398 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $480. 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 $339 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 $280 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 September 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

$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 $277.
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 28m.

  • 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
8,023 reviews
Search Spirit Airlines flights
FrontierPriceFrom $138Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $142Free CancellationRating
7.8
2,729 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $143Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
DeltaPriceFrom $180Free CancellationRating
7.9
7,961 reviews
Search Delta flights
Alaska AirlinesPriceFrom $206Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
American AirlinesPriceFrom $266Free 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 9 flights from Austin to Seattle in any given week. The average Alaska Airlines airfare for this route is around $365, with deals from around $206 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
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Kirkland
Tukwila
Shoreline
Lakewood
Centralia
Fife
Cle Elum
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
Fri 10/17
Fri 10/24

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