Cheap flights from Austin to Seattle from $99

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 8/19. 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

 Logo
11:50 am - 4:25 pmAUS-SEA
6h 35m1 stop
 Logo
5:30 pm - 11:00 amSEA-AUS
15h 30m1 stop
Sun, Aug 3 - Wed, Aug 6
Hawaiian Airlines Logo
7:15 am - 9:42 amAUS-SEA
4h 27mnonstop
Hawaiian Airlines Logo
9:15 am - 3:26 pmSEA-AUS
4h 11mnonstop
$181Hawaiian Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
Delta Logo
6:20 am - 8:54 amAUS-SEA
4h 34mnonstop
Delta Logo
11:15 am - 5:28 pmSEA-AUS
4h 13mnonstop
$197Delta
Find Deal
Sat, Sep 27 - Sat, Oct 4
Alaska Airlines Logo
7:15 am - 9:42 amAUS-SEA
4h 27mnonstop
Alaska Airlines Logo
1:40 pm - 12:55 amSEA-AUS
9h 15m1 stop
$201Alaska Airlines
Find Deal
Thu, Sep 4 - Thu, Sep 4
Alaska Airlines Logo
6:00 am - 11:25 amAUS-SEA
7h 25m1 stop
Alaska Airlines Logo
8:08 pm - 12:40 pmSEA-AUS
14h 32m1 stop
$216Alaska Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
American Airlines Logo
5:00 am - 9:21 amAUS-SEA
6h 21m1 stop
American Airlines Logo
7:45 am - 6:17 pmSEA-AUS
8h 32m1 stop
$218American Airlines
Find Deal
Wed, Aug 13 - Wed, Aug 20
Frontier Logo
7:45 am - 12:31 amAUS-SEA
18h 46m1 stop
Frontier Logo
6:00 am - 11:34 pmSEA-AUS
15h 34m1 stop
$224Frontier
Find Deal
Sat, Oct 11 - Sat, Oct 18
Frontier Logo
7:50 am - 8:43 pmAUS-SEA
14h 53m1 stop
Frontier Logo
7:00 am - 10:00 pmSEA-AUS
13h 00m1 stop
$227Frontier
Find Deal
Sat, Sep 6 - Sat, Sep 13
American Airlines Logo
2:33 pm - 7:16 pmAUS-SEA
6h 43m1 stop
American Airlines Logo
5:25 am - 1:43 pmSEA-AUS
6h 18m1 stop
$238American Airlines
Find Deal
Mon, Aug 18 - Wed, Aug 20
Delta Logo
7:20 am - 6:05 pmAUS-SEA
12h 45m2 stops
Delta Logo
11:15 am - 5:25 pmSEA-AUS
4h 10mnonstop
$249Delta
Find Deal
Tue, Sep 2 - Wed, Sep 10

Hawaiian Airlines flights from Austin to Seattle

Our best Hawaiian Airlines deals on Austin to Seattle flight tickets
Hawaiian Airlines
Aug 23
AUS7:15 amAustin Bergstrom
4h 27m
SEA9:42 amSeattle/Tacoma Intl
Aug 30
SEA9:15 amSeattle/Tacoma Intl
4h 11m
AUS3:26 pmAustin Bergstrom
Hawaiian Airlines
Aug 23
AUS7:15 amAustin Bergstrom
4h 27m
SEA9:42 amSeattle/Tacoma Intl
Aug 30
SEA9:15 amSeattle/Tacoma Intl
4h 11m
AUS3:26 pmAustin Bergstrom
Hawaiian Airlines
Aug 19
AUS1:36 pmAustin Bergstrom
4h 23m
SEA3:59 pmSeattle/Tacoma Intl
Aug 26
SEA12:20 pmSeattle/Tacoma Intl
4h 16m
AUS6:36 pmAustin Bergstrom

Alaska Airlines flights from Austin to Seattle

Our best Alaska Airlines deals on Austin to Seattle flight tickets
Alaska Airlines
Sep 4
AUS7:15 amAustin Bergstrom
4h 27m
SEA9:42 amSeattle/Tacoma Intl
Sep 4
SEA1:40 pmSeattle/Tacoma Intl
9h 15m
1 stop
AUS12:55 amAustin Bergstrom
Alaska Airlines
Sep 13
AUS6:00 amAustin Bergstrom
7h 25m
1 stop
SEA11:25 amSeattle/Tacoma Intl
Sep 20
SEA8:08 pmSeattle/Tacoma Intl
14h 32m
1 stop
AUS12:40 pmAustin Bergstrom
Alaska Airlines
Aug 16
AUS1:36 pmAustin Bergstrom
4h 23m
SEA3:59 pmSeattle/Tacoma Intl
Aug 16
SEA5:56 pmSeattle/Tacoma Intl
4h 09m
AUS12:05 amAustin Bergstrom

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, September 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 September, then you should wait until October to fly from Austin, when ticket prices are also cheap, with an average price of $267.

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 $390. 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 $512.

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 $379 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $506. 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 $336 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 $276 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 July 2025, prices for Austin to Seattle flights are approximately 36% 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

$99

Fastest flight time

4h 23m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Austin in the past 72 hours is $99. The best round-trip flight deal from Austin to Seattle found on momondo in the last 72 hours is $174.
The fastest flight from Austin to Seattle takes 4h 23m
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 23m.

  • 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 $76Free CancellationRating
6.3
8,035 reviews
Search Spirit Airlines flights
FrontierPriceFrom $138Free CancellationRating
5.9
3,251 reviews
Search Frontier flights
SouthwestPriceFrom $143Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
Hawaiian AirlinesPriceFrom $149Free CancellationRating
7.8
2,581 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $177Free CancellationRating
8.0
7,958 reviews
Search Delta flights
Alaska AirlinesPriceFrom $196Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
8,864 reviews
Search United Airlines flights
American AirlinesPriceFrom $256Free 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 2 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 $429. Our users have rated Southwest at 8.0/10.

  • Delta Flights From Austin to Seattle

    Delta (8.0/10 from 7,958 reviews) operates around 17 flights from Austin to Seattle in any given week. The average Delta airfare for this route is around $330, with deals from around $177 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
Kent
Federal Way
Lynnwood
Puyallup
Marysville
Tukwila
Kirkland
Shoreline
Lakewood
Fife
Cle Elum
Centralia
Westport
Redmond

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
Tue 7/22
Tue 7/29

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