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Cheap flights from Seattle to Austin from C$ 164

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — AUS
20 Aug — 27 Aug1
1 adult

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Austin Bergstrom are usually found in September or January, booked 80 days in advance, depart on a Friday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Austin (AUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 August 2025.

Round-trip from

C$ 272

One-way from

C$ 164

Popular in

December

Cheapest in

September

Average price

C$ 427
Delta
  • Delta
  • 14/10-18/10
  • Nonstop
  • 8h 46m total
  • Seattle to Austin
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Delta
  • Delta
  • 6/9
  • Nonstop
  • 4h 09m total
  • Seattle to Austin
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Seattle to Austin

Cheapest flights from Seattle to Austin
Explore the most affordable flight options available from Seattle to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2025.

Tue 14/105:50 p.m.SEA - AUS
Nonstop4h 07mDelta
Sat 18/106:16 a.m.AUS - SEA
Nonstop4h 39mDelta
Deal found 14/8C$ 272
Tue 7/109:04 a.m.SEA - AUS
Nonstop4h 06mHawaiian Airlines
Tue 14/106:00 a.m.AUS - SEA
1 stop7h 46mHawaiian Airlines
Deal found 13/8C$ 285
Fri 19/96:12 a.m.SEA - AUS
1 stop15h 20mFrontier
Sun 21/92:16 p.m.AUS - SEA
1 stop27h 25mFrontier
Deal found 14/8C$ 287
Wed 1/1011:50 a.m.SEA - AUS
1 stop9h 09mAlaska Airlines
Sat 4/108:15 a.m.AUS - SEA
1 stop8h 20mAlaska Airlines
Deal found 13/8C$ 298
Sat 6/97:10 a.m.SEA - AUS
1 stop6h 13mUnited Airlines
Sat 13/92:15 p.m.AUS - SEA
1 stop9h 03mUnited Airlines
Deal found 13/8C$ 299
Wed 10/98:45 a.m.SEA - AUS
1 stop6h 13mUnited Airlines
Mon 15/98:00 a.m.AUS - SEA
1 stop7h 30mUnited Airlines
Deal found 12/8C$ 320
Tue 30/91:42 p.m.SEA - AUS
1 stop7h 17mAlaska Airlines
Sat 4/108:15 a.m.AUS - SEA
1 stop8h 20mAlaska Airlines
Deal found 13/8C$ 325
Thu 2/107:20 a.m.SEA - AUS
Nonstop4h 08mDelta
Sat 4/106:20 a.m.AUS - SEA
Nonstop4h 34mDelta
Deal found 13/8C$ 327
Sat 4/109:04 a.m.SEA - AUS
Nonstop4h 06mAlaska Airlines
Sat 4/105:43 p.m.AUS - SEA
1 stop7h 21mAlaska Airlines
Deal found 13/8C$ 332
Sat 20/95:00 a.m.SEA - AUS
2 stops7h 05mSouthwest
Sat 27/92:50 p.m.AUS - SEA
1 stop8h 10mSouthwest
Deal found 14/8C$ 334

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Austin 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, Cheapflights users made 629,999 searches. Data last updated 15 August 2025.
Use the filters below to find and compare flights from Seattle to Austin that are best for you.

Fly from

Seattle

Fly to

Austin

Route

Depart

Return

Price

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Tue 14/10

5:50 p.m.-11:57 p.m.

Nonstop4h 07m

Austin Bergstrom

Sat 25/10

6:16 a.m.-8:55 a.m.

Nonstop4h 39m

C$ 272

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Wed 10/9

5:55 p.m.-12:04 a.m.

Nonstop4h 09m

Austin Bergstrom

Wed 17/9

7:53 p.m.-10:27 p.m.

Nonstop4h 34m

C$ 272

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Mon 24/11

12:37 a.m.-6:40 a.m.

Nonstop4h 03m

Austin Bergstrom

Tue 2/12

6:50 p.m.-9:34 p.m.

Nonstop4h 44m

C$ 272

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Sat 4/10

5:45 p.m.-11:50 p.m.

Nonstop4h 05m

Austin Bergstrom

Wed 8/10

6:16 a.m.-8:55 a.m.

Nonstop4h 39m

C$ 272

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Wed 8/10

5:50 p.m.-11:56 p.m.

Nonstop4h 06m

Austin Bergstrom

Sat 11/10

7:15 a.m.-9:47 a.m.

Nonstop4h 32m

C$ 272

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Tue 30/9

11:15 a.m.-5:28 p.m.

Nonstop4h 13m

Austin Bergstrom

Wed 8/10

6:04 p.m.-8:40 p.m.

Nonstop4h 36m

C$ 272

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Wed 15/10

11:35 a.m.-5:50 p.m.

Nonstop4h 15m

Austin Bergstrom

Wed 29/10

6:16 a.m.-8:55 a.m.

Nonstop4h 39m

C$ 272

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Tue 14/10

5:50 p.m.-11:57 p.m.

Nonstop4h 07m

Austin Bergstrom

Sat 18/10

12:12 p.m.-2:44 p.m.

Nonstop4h 32m

C$ 272

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Wed 1/10

5:45 p.m.-11:51 p.m.

Nonstop4h 06m

Austin Bergstrom

Wed 8/10

6:16 a.m.-8:55 a.m.

Nonstop4h 39m

C$ 272

SeattleAustin

SEA - AUS

SEAAUS

Seattle/Tacoma Intl

Tue 30/9

5:45 p.m.-11:51 p.m.

Nonstop4h 06m

Austin Bergstrom

Sat 4/10

6:20 a.m.-8:54 a.m.

Nonstop4h 34m

C$ 272

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/8

Showing 1-10 of 17 results
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Best time to book a flight from Seattle to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Austin

How far ahead should I book a flight from Seattle to Austin?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Austin. Price data was last updated on 8 August 2025.

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Austin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Austin?

Currently, September is the cheapest month in which you can book a flight from Seattle to Austin (average of C$ 424). Flying from Seattle to Austin in March is currently the most expensive (average of C$ 520). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to AUS?

Find hourly flight availability from Seattle to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 August 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Austin at noon. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the evening.

Weekly flight availability from Seattle to Austin

Explore weekly flight availability from Seattle to Austin. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 August 2025.

The most flights from SEA to AUS are scheduled on a Thursday (31 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (16 on average).

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Austin. Reviews last updated 15 August 2025.
Get a feel of what it's like to fly with Alaska Airlines and Delta from Seattle to Austin by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Seattle to Austin?

    Booking a flight from Seattle/Tacoma Intl (SEA) to Austin Bergstrom (AUS) is your only option if you wish to fly from Seattle to Austin. On a typical day, there are 24 flights from Seattle/Tacoma Intl to Austin Bergstrom, all of which are around 4h 14m for a nonstop flight. You can also purchase a plane ticket from 2 airlines when you book a flight from Seattle/Tacoma Intl to Austin.

  • How popular is this Seattle to Austin flight route?

    The Seattle/Tacoma Intl to Austin Bergstrom flight path was viewed by 16 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Seattle to Austin round-trip?

    Currently priced at C$ 162, Delta will fly you from Seattle to Austin and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Alaska Airlines for as low as C$ 235. You may be able to fly from Seattle to Austin for 66% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Seattle to Austin one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at C$ 164. Frontier flights start at C$ 174 while deals on United Airlines start at C$ 178 one-way.

  • What are the most reliable airlines from Seattle to Austin?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Austin on time: Air France (86%), KLM (81%), Delta (74%).

  • Can I find deals for flights from Seattle to Austin that include hotel bookings?

    Yes. In addition to deals on Seattle to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Austin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Austin.

  • Can I find deals for business class flights from Seattle to Austin?

    Yes. Cheapflights offers flight deals from Seattle to Austin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Austin?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Austin (average of C$ 424). Flying from Seattle to Austin in March is currently the most expensive (average of C$ 520). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Dripping Springs

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Alternative routes for Seattle to Austin

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Dallas/Fort Worth flights
Seattle to George Bush Intcntl flights
Bellingham to Dallas/Fort Worth flights

Top 2 airlines flying from Seattle to Austin

Discover the top 2 airlines that operate flights from Seattle to Austin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 15 August 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 162AverageC$ 368FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapestC$ 235AverageC$ 415FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Austin?

Deals for Seattle to Austin flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Austin?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to Austin.

Can Cheapflights find flights from Seattle to Austin with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Austin flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Seattle to Austin become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Austin from Seattle today and book when prices fit your budget.

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