What is the cheapest airline that flies from Seattle/Tacoma Intl to Austin Bergstrom?

Alaska Airlines, Southwest, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Austin Bergstrom

How many flights depart from Seattle to Austin on average per day?

11 flights are operational daily from Seattle to Austin as of January 2026. The most popular departure time for this route is 9:00AM, with 79% of flights per day taking off at noon.

Which layover airport has the shortest connection time from Seattle to Austin?

Los Angeles (LAX) has the shortest average layover time for this route: 0h 57m.

How many flights depart from Seattle to Austin on average per week?

As of January 2026, 77 flights take off from Seattle and land in Austin each week. The most common flight departure day for this route is Thu, with 23% of weekly flights taking off on this day.

Which airport is the most popular layover for flights between Seattle and Austin?

Denver (DEN) was the most common stop: 71% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Austin?

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Austin from Seattle according to our data. Alaska Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Austin. Keep in mind that there are 8 different airlines that fly to Austin on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from Seattle to Austin?

Flights via Denver (DEN) offer the lowest average round-trip price of $220.

Which layover airport has the shortest travel time from Seattle to Austin?

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 6h 20m.

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

Prices for flights from Seattle/Tacoma Intl Airport to Austin Bergstrom Airport are refreshed on a daily basis.

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

As of January 2026, there are 7 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Austin Bergstrom Airport.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Austin Bergstrom Airport.

What documentation or ID do you need to fly to Austin Bergstrom Airport?

The travel and health documents required for your trip to Austin Bergstrom Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Austin Bergstrom Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$109 Cheap Flights from Seattle to Austin in 2026

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:35 am - 4:00 pm

SEA

AUS

4h 25mnonstop

4:55 pm - 7:38 pm

AUS

SEA

4h 43mnonstop

$197Delta

Sat, Feb 21 - Wed, Feb 25

1:16 pm - 9:21 am

SEA

AUS

18h 05m

1 stop

3:35 pm - 6:20 pm

AUS

SEA

4h 45mnonstop

$198Multiple Airlines

Sat, Feb 21 - Sat, Feb 28

11:50 am - 6:04 pm

SEA

AUS

4h 14mnonstop

8:35 am - 11:17 am

AUS

SEA

4h 42mnonstop

$200Alaska Airlines

Wed, Apr 1 - Mon, Apr 6

12:24 pm - 10:03 pm

SEA

AUS

7h 39m

1 stop

10:45 pm - 11:19 am

AUS

SEA

14h 34m

1 stop

$201Frontier

Sun, Mar 8 - Thu, Mar 19

1:16 pm - 12:16 am

SEA

AUS

9h 00m

1 stop

6:45 am - 11:19 am

AUS

SEA

6h 34m

1 stop

$202Frontier

Thu, Mar 5 - Mon, Mar 9

1:16 pm - 12:16 am

SEA

AUS

9h 00m

1 stop

7:15 am - 10:00 am

AUS

SEA

4h 45mnonstop

$203Multiple Airlines

Thu, Feb 19 - Tue, Feb 24

1:16 pm - 9:21 am

SEA

AUS

18h 05m

1 stop

10:12 am - 11:19 am

AUS

SEA

27h 07m

2 stops

$204Multiple Airlines

Thu, Feb 26 - Thu, Mar 5

5:52 pm - 11:59 pm

SEA

AUS

4h 07mnonstop

6:45 am - 12:01 pm

AUS

SEA

7h 16m

1 stop

$206Multiple Airlines

Sat, Feb 28 - Thu, Mar 5

5:50 pm - 11:56 pm

SEA

AUS

4h 06mnonstop

6:03 am - 8:43 am

AUS

SEA

4h 40mnonstop

$207Delta

Wed, Feb 25 - Sun, Mar 8

1:16 pm - 9:21 am

SEA

AUS

18h 05m

1 stop

7:00 pm - 9:45 pm

AUS

SEA

4h 45mnonstop

$208Multiple Airlines

Thu, Feb 26 - Sat, Feb 28

Alaska Airlines flights from Seattle to Austin

Our best Alaska Airlines deals on Seattle to Austin flight tickets

Alaska Airlines

Apr 1

SEA8:20 amSeattle/Tacoma Intl

4h 12m

AUS2:32 pmAustin Bergstrom

Apr 15

AUS7:20 amAustin Bergstrom

9h 18m

1 stop

SEA2:38 pmSeattle/Tacoma Intl

$227

Alaska Airlines

Apr 2

SEA6:24 pmSeattle/Tacoma Intl

4h 10m

AUS12:34 amAustin Bergstrom

Apr 14

AUS7:20 amAustin Bergstrom

9h 18m

1 stop

SEA2:38 pmSeattle/Tacoma Intl

$237

Alaska Airlines

Mar 25

SEA6:24 pmSeattle/Tacoma Intl

4h 10m

AUS12:34 amAustin Bergstrom

Apr 1

AUS5:47 pmAustin Bergstrom

22h 51m

1 stop

SEA2:38 pmSeattle/Tacoma Intl

$240

Delta flights from Seattle to Austin

Our best Delta deals on Seattle to Austin flight tickets

Delta

Feb 21

SEA9:35 amSeattle/Tacoma Intl

4h 25m

AUS4:00 pmAustin Bergstrom

Feb 25

AUS4:55 pmAustin Bergstrom

4h 43m

SEA7:38 pmSeattle/Tacoma Intl

$197

Delta

Feb 25

SEA5:50 pmSeattle/Tacoma Intl

4h 06m

AUS11:56 pmAustin Bergstrom

Mar 8

AUS6:03 amAustin Bergstrom

4h 40m

SEA8:43 amSeattle/Tacoma Intl

$207

Delta

Feb 26

SEA5:50 pmSeattle/Tacoma Intl

4h 06m

AUS11:56 pmAustin Bergstrom

Mar 2

AUS6:10 amAustin Bergstrom

4h 45m

SEA8:55 amSeattle/Tacoma Intl

$217

Fly from

Fly to

Route

Depart

Return

Price

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Sat 2/21

9:35 am-4:00 pm

Nonstop4h 25m

Austin Bergstrom

Wed 2/25

4:55 pm-7:38 pm

Nonstop4h 43m

$197

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Sat 2/21

1:16 pm-9:21 am

1 stop18h 05m

Austin Bergstrom

Sat 2/28

3:35 pm-6:20 pm

Nonstop4h 45m

$198

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Wed 4/1

11:50 am-6:04 pm

Nonstop4h 14m

Austin Bergstrom

Mon 4/6

8:35 am-11:17 am

Nonstop4h 42m

$200

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Sun 3/8

12:24 pm-10:03 pm

1 stop7h 39m

Austin Bergstrom

Thu 3/19

10:45 pm-11:19 am

1 stop14h 34m

$201

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Thu 3/5

1:16 pm-12:16 am

1 stop9h 00m

Austin Bergstrom

Mon 3/9

6:45 am-11:19 am

1 stop6h 34m

$202

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Thu 2/19

1:16 pm-12:16 am

1 stop9h 00m

Austin Bergstrom

Tue 2/24

7:15 am-10:00 am

Nonstop4h 45m

$203

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Thu 2/26

1:16 pm-9:21 am

1 stop18h 05m

Austin Bergstrom

Thu 3/5

10:12 am-11:19 am

2 stops27h 07m

$204

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Sat 2/28

5:52 pm-11:59 pm

Nonstop4h 07m

Austin Bergstrom

Thu 3/5

6:45 am-12:01 pm

1 stop7h 16m

$206

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Wed 2/25

5:50 pm-11:56 pm

Nonstop4h 06m

Austin Bergstrom

Sun 3/8

6:03 am-8:43 am

Nonstop4h 40m

$207

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Thu 2/26

1:16 pm-9:21 am

1 stop18h 05m

Austin Bergstrom

Sat 2/28

7:00 pm-9:45 pm

Nonstop4h 45m

$208

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How to get the cheapest flight ticket from Seattle to Austin

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

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between Seattle and Austin?

What is the cheapest month to fly to Austin?

The cheapest month to fly to Austin from Seattle is in September. Flight prices, which tend to average around $290, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in September, then May is your next best option. Flight prices from Seattle to Austin during May average around $307.

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

The cheapest day to depart on your flight to Austin is on a Tuesday when prices can be found for as low as $312. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Austin for around $405.

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

In the morning is the cheapest time of day to fly from Seattle to Austin when you can find flight prices for as low as $335. Flying to Austin in the morning is an ideal time because this is during off-peak travel hours. Flights to Austin are more costly in the evening, with an average ticket price of $366. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

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

You are more likely to see cheaper flights to Austin from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Austin for around $334 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Austin from Seattle for as low as $285 on momondo.

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

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Austin Bergstrom 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 Seattle to Austin flights?

You could potentially save up to 34% on your flight if you consider stops on a Seattle to Austin flight.

How have Seattle to Austin flight prices changed over time?

As of January 2026, prices for Seattle to Austin flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Austin

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

Estimated round-trip price

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

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

Best Price Found	$138
Fastest flight time	4h 03m
Direct flights	Every day
Airports in Austin	1 airport

The best one-way flight to Austin from Seattle in the past 72 hours is $138. The best round-trip flight deal from Seattle to Austin found on momondo in the last 72 hours is $217.

The fastest flight from Seattle to Austin takes 4h 03m

Direct flights go from Seattle to Austin every day.

There is 1 airport in Austin. From Seattle there are direct flights to Austin Bergstrom (AUS).

Search flight deals

How far is Seattle/Tacoma Intl to Austin Bergstrom by plane?
There are 1768.1 mi between Seattle/Tacoma Intl and Austin Bergstrom. In terms of flight time, this usually takes a little over 4h 03m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Austin Bergstrom Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Austin Bergstrom Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Austin Bergstrom Airport?
As of January 2026, there are 7 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Austin Bergstrom Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Austin Bergstrom Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Austin Bergstrom Airport.
What documentation or ID do you need to fly to Austin Bergstrom Airport?
The travel and health documents required for your trip to Austin Bergstrom Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Austin Bergstrom Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Seattle to Austin?
Based on momondo bookings for flights between Seattle and Austin, the leading plane model is Boeing 737, making up 32.50% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 21.02%, Boeing 737-900 Passenger/BBJ3 (winglets) with 13.83%, and Airbus A320-100/200 with 10.72%.
What is the most popular airline from Seattle to Austin?
momondo data reveals that the most frequently booked airline on the route from Seattle to Austin is Alaska Airlines, representing 49% of all bookings. The subsequent popular airlines are Delta at 36%, Hawaiian Airlines at 7%, and Frontier at 4%.

Best airlines flying from Seattle to Austin

Compare and see reviews for airlines that fly from Seattle to Austin with momondo

Airline	Rating	Free Cancellation	Price
Hawaiian Airlines	PriceFrom $118	Free Cancellation	Rating 7.8 2,830 reviews	Search Hawaiian Airlines flights
Frontier	PriceFrom $133	Free Cancellation	Rating 5.7 3,056 reviews	Search Frontier flights
Delta	PriceFrom $165	Free Cancellation	Rating 7.9 8,127 reviews	Search Delta flights
Alaska Airlines	PriceFrom $197	Free Cancellation	Rating 8.0 11,807 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $202	Free Cancellation	Rating 8.0 4,267 reviews	Search Southwest flights
United Airlines	PriceFrom $236	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
American Airlines	PriceFrom $286	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights

Alaska Airlines Flights From Seattle to Austin
Alaska Airlines operates around 9 flights from Seattle to Austin every week. The average price of these flights found in the last 72 hours has been $352, but momondo users have found Alaska Airlines deals from Seattle to Austin from as low as $197 round-trip. Alaska Airlines has been scored 8.0/10 in 11,807 reviews.
Delta Flights From Seattle to Austin
Delta is also a popular choice for this route. Delta flight deals for Seattle to Austin start from as low as $165 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $335. Delta operates 7 flights to Austin from Seattle in an average week. Users have rated it 7.9/10 across 8,127 reviews.

Fredericksburg

Wimberley

San Marcos

Round Rock

Georgetown

Canyon Lake

Marble Falls

Cedar Park

Horseshoe Bay

Dripping Springs

Pflugerville

Kyle

Seguin

Bastrop

Buda

Flatonia

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Austin. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Austin from Seattle which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Seattle to Austin flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Seattle to Austin flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Seattle to Austin from $109

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Austin departing on 4/25. 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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How to get the cheapest flight ticket from Seattle to Austin

What is the typical price of a round-trip flight between Seattle and Austin?

What is the cheapest month to fly to Austin?

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

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

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

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

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

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

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Austin Bergstrom 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 Seattle to Austin flights?

You could potentially save up to 34% on your flight if you consider stops on a Seattle to Austin flight.

How have Seattle to Austin flight prices changed over time?

As of January 2026, prices for Seattle to Austin flights are approximately 8% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Austin Bergstrom?

Alaska Airlines, Southwest, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Austin Bergstrom

What airlines fly to Austin?

Which airport is the most popular layover for flights between Seattle and Austin?

Denver (DEN) was the most common stop: 71% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Austin?

Flights via Denver (DEN) offer the lowest average round-trip price of $220.

Which layover airport has the shortest travel time from Seattle to Austin?

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 6h 20m.

Which layover airport has the shortest connection time from Seattle to Austin?

Los Angeles (LAX) has the shortest average layover time for this route: 0h 57m.

How many flights depart from Seattle to Austin on average per day?

11 flights are operational daily from Seattle to Austin as of January 2026. The most popular departure time for this route is 9:00AM, with 79% of flights per day taking off at noon.

How many flights depart from Seattle to Austin on average per week?

As of January 2026, 77 flights take off from Seattle and land in Austin each week. The most common flight departure day for this route is Thu, with 23% of weekly flights taking off on this day.

When to book flights from Seattle to Austin

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Austin

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

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

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

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

What documentation or ID do you need to fly to Austin Bergstrom Airport?

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

What is the most popular airline from Seattle to Austin?

Best airlines flying from Seattle to Austin

Compare and see reviews for airlines that fly from Seattle to Austin with momondo

Alaska Airlines Flights From Seattle to Austin

Delta Flights From Seattle to Austin

Traveling to a place near Austin?

Why use momondo?

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

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

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

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

An easier way to manage your Austin 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States