SEA - AUS

$149 Find Cheap Flights from Seattle to Austin - Compare and Save

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Everything you should know

Cheapest round-trip
$242
Typical prices: $263-$484
Frontier
Tue 10/23Tue 10/30
SEA - AUS • 1 stop
Cheapest non-stop
$287
Typical prices: $262-$492
Alaska Airlines
Sat 11/17Sat 11/24
SEA - AUS • Non-stop
Nonstop flights
You can fly direct with Alaska Airlines, Delta and Southwest. Average duration is 4h 12m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $290 (round-trip)
Shortest trip • 6h 01m (one-way)
Insights
Insights
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We hope you love your trip to Austin!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seattle to Austin (SEA-AUS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Austin

Fri, Oct 23 - Fri, Oct 30
Frontier Logo
9:16 pm - 12:17 pmSEA  Seattle/Tacoma Intl-AUS Austin Bergstrom
13h 01m1 stop Las Vegas Harry Reid Intl
Frontier Logo
8:21 pm - 3:12 pmAUS  Austin Bergstrom-SEA Seattle/Tacoma Intl
20h 51m1 stop Denver Intl
$242Frontier
Mon, Oct 19 - Thu, Oct 29
Frontier Logo
4:27 pm - 7:26 pmSEA  Seattle/Tacoma Intl-AUS Austin Bergstrom
24h 59m1 stop Denver Intl
Frontier Logo
1:08 pm - 9:45 amAUS  Austin Bergstrom-SEA Seattle/Tacoma Intl
22h 37m1 stop Las Vegas Harry Reid Intl
$247Frontier
Mon, Nov 16 - Wed, Nov 18
Multiple Airlines Logo
9:13 pm - 12:22 pmSEA  Seattle/Tacoma Intl-AUS Austin Bergstrom
13h 09m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:21 pm - 4:52 pmAUS  Austin Bergstrom-SEA Seattle/Tacoma Intl
22h 31m3 stops Denver Intl San Diego Sacramento Intl
$250Multiple Airlines
Tue, Oct 13 - Tue, Oct 20
Multiple Airlines Logo
5:08 pm - 11:14 pmSEA  Seattle/Tacoma Intl-AUS Austin Bergstrom
4h 06mnonstop
Multiple Airlines Logo
8:21 pm - 8:20 amAUS  Austin Bergstrom-SEA Seattle/Tacoma Intl
13h 59m2 stops Denver Intl San Francisco
$256Multiple Airlines
Tue, Nov 17 - Tue, Nov 24
Alaska Airlines Logo
8:13 am - 2:31 pmSEA  Seattle/Tacoma Intl-AUS Austin Bergstrom
4h 18mnonstop
Alaska Airlines Logo
6:58 pm - 9:45 pmAUS  Austin Bergstrom-SEA Seattle/Tacoma Intl
4h 47mnonstop
$287Alaska Airlines
Wed, Oct 28 - Tue, Nov 10
Alaska Airlines Logo
11:41 am - 6:04 pmSEA  Seattle/Tacoma Intl-AUS Austin Bergstrom
4h 23mnonstop
Alaska Airlines Logo
8:30 am - 11:08 amAUS  Austin Bergstrom-SEA Seattle/Tacoma Intl
4h 38mnonstop
$295Alaska Airlines
Wed, Nov 4 - Mon, Nov 9
Delta Logo
5:40 pm - 11:50 pmSEA  Seattle/Tacoma Intl-AUS Austin Bergstrom
4h 10mnonstop
Delta Logo
6:15 am - 9:00 amAUS  Austin Bergstrom-SEA Seattle/Tacoma Intl
4h 45mnonstop
$297Delta
Mon, Nov 23 - Tue, Dec 1
Delta Logo
5:45 pm - 11:57 pmSEA  Seattle/Tacoma Intl-AUS Austin Bergstrom
4h 12mnonstop
Delta Logo
6:08 am - 9:00 amAUS  Austin Bergstrom-SEA Seattle/Tacoma Intl
4h 52mnonstop
$297Delta
Thu, Dec 3 - Mon, Dec 7
Southwest Logo
9:10 am - 3:10 pmSEA  Seattle/Tacoma Intl-AUS Austin Bergstrom
4h 00mnonstop
Southwest Logo
3:55 pm - 6:35 pmAUS  Austin Bergstrom-SEA Seattle/Tacoma Intl
4h 40mnonstop
$297Southwest
Tue, Oct 27 - Tue, Nov 3
Southwest Logo
8:55 am - 3:00 pmSEA  Seattle/Tacoma Intl-AUS Austin Bergstrom
4h 05mnonstop
Southwest Logo
3:55 pm - 6:35 pmAUS  Austin Bergstrom-SEA Seattle/Tacoma Intl
4h 40mnonstop
$297Southwest
Booking Insights

Price, demand and travel trends for Seattle to Austin flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Seattle to Austin?

Round-trip flights from Seattle to Austin typically range from $263 to $484. The lowest price found in the past 5 days was $242, on Frontier.

What's the cheapest day of the week to fly from Seattle to Austin?

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Seattle to Austin. It’s 9% cheaper than the average day, while Monday is the most expensive, with prices 16% higher.

What’s the cheapest month to fly from Seattle to Austin?

•January is the cheapest month to fly from Seattle to Austin at $252 round-trip.
•August ($417) and July ($410) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 65% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seattle to Austin the cheapest?

Flights from Seattle to Austin are cheapest 5 weeks before departure. Booking in this window typically costs about 55% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Seattle to Austin

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines, SEA and AUS

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Key details for Seattle to Austin flights

Low season

August

Cheapest flight

$149
Beat the crowds with an average 60% drop in travelers.
The most popular month to fly with an average 3% increase in travelers.
One-way flight from Seattle to Austin

When to book flights from Seattle to Austin

Are your dates flexible? Find out the best times to travel from Seattle to Austin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Austin flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Seattle to Austin?

    These are the earliest and latest flight times available from Seattle to Austin:

    • Earliest: departs at 7:15 am and lands at 11:27 am
    • Latest: departs at 5:50 pm and lands at 10:02 pm.

    The flight takes about 4h 12m.

  • What cabin classes can I book on flights from Seattle to Austin?

    Three cabin classes are available on flights from Seattle to Austin:

    • Economy Class
    • Business Class
    • First Class

  • How long is a flight from Seattle to Austin?

    A nonstop flight from Seattle to Austin takes 4h 12m, covering 1,768 miles.

  • Do I need a passport to fly from Seattle to Austin?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Seattle to Austin flight?

    Round-trip flights from Seattle to Austin range from $263 to $484, with an average of $355 over the past 12 months. Anything below $263 counts as a good deal.

  • How expensive are last-minute Seattle to Austin flights?

    Last-minute fares on this route (booked within two weeks of departure) run 80% above the $355 route average. Book 5 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Seattle to Austin?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $290 round-trip via Houston George Bush Intcntl (IAH), compared to $357 for nonstop.

  • What is the standard checked-bag allowance on flights from Seattle to Austin?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Seattle to Austin?

    The Boeing 737 family is used most often on this route, operated mainly by American Airlines and Southwest. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

  • How are flight departures from Seattle to Austin spread across the day?

    Morning is the busiest departure period on Seattle to Austin flights, with 72% of flights leaving in that window. Evening departures account for 28%, afternoon flights for 0%, and night flights for 0%.

  • Have flight prices from Seattle to Austin changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $242 to $1,023. That means the highest observed fare was about 4x higher than the lowest one.

  • Which airlines offer Wi-Fi on Seattle to Austin flights?

    Three airlines offer in-flight Wi-Fi on Seattle to Austin flights:

    • Alaska Airlines
    • Delta
    • JetBlue

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

  • How are flight prices from Seattle to Austin looking right now?

    One-way fares from Seattle to Austin are currently lower than usual. Average one-way flight prices are about $158, which is 39% below the typical average for this route.

  • What car rental options are available at Austin Bergstrom Airport (AUS)?

    Austin Bergstrom Airport (AUS) hosts 5 major car rental companies, with daily rates starting from around $13 for economy cars. Top options include:

    • Europcar
    • Hertz
    • Fox
    • Easirent
    • Thrifty

  • Which airports can I use when flying from Seattle to Austin?

    Flights from Seattle to Austin usually depart from Seattle/Tacoma Intl (SEA) and arrive at Austin Bergstrom (AUS).

  • Which airports do connecting flights from Seattle to Austin pass through?

    One-stop flights from Seattle to Austin most commonly connect through:

    • Denver Intl (DEN) - 73% of one-stop connections
    • Dallas/Fort Worth (DFW) - 9% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 6% of one-stop connections
    • Houston George Bush Intcntl (IAH) - 4% of one-stop connections

  • Can I save money by using flexible dates for flights from Seattle to Austin?

    Yes. Flexible dates can save you up to 22% on flights from Seattle to Austin. Sunday is the cheapest departure day at $325 round-trip on average, while Monday is the most expensive at $415, a difference of $90.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What airlines fly from Seattle to Austin?

    3 airlines operate flights between Seattle and Austin. The airlines offering nonstop flights on this route include:

    • Alaska Airlines
    • Delta
    • Southwest

  • How much time can I save by choosing a different layover airport from Seattle to Austin?

    Flying via Dallas Love Field (DAL) gives the shortest average 1-stop total travel time at 6h 01m, compared with 6h 22m via Portland (PDX) and 6h 24m via Phoenix Sky Harbor Intl (PHX).

  • What is the time difference between Seattle and Austin?

    Austin is 2 hours ahead of Seattle (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Austin?

    Some of the most popular sights in Austin are Sixth Street, University of Texas at Austin and ACL Live at The Moody Theater. These are among the most viewed places in Austin on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Seattle to Austin flights?

    Among airlines operating Seattle to Austin flights:

    • Alaska Airlines: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection
    • Southwest: offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Seattle to Austin flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Alaska Airlines: a cabin bag and a checked bag in Economy Class
    • Delta: a cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • Which family services are available at Seattle-Tacoma International Airport?

    Baby care facilities are provided in each terminal at SEA. The mother’s room is a quiet spot with a rocking chair, adjustable lighting, and power outlets where passengers can feed and change their babies. They are located in each terminal. Passengers with older kids will appreciate the play area at SEA. These are equipped with toys, fun games, and climbing structures, and you’ll find the SEA play area between the Central Terminal and A Gates.

  • What are the transport options from Austin-Bergstrom International Airport?

    The bus is the first option, and two buses, 20 and 100, provide frequent services between AUS and downtown Austin. SuperShuttle also operates from AUS, offering door-to-door services from the airport. You’ll also find rideshares operating from the airport, and taxis are available curbside. Avis, Budget, Dollar, Enterprise, Hertz, and Thrifty have their counters at AUS if you wish to self-drive.

  • What accessible services are offered at Austin-Bergstrom International Airport?

    Accessible parking is provided in parking garages and accessible transportation is provided for movement around the airport. Wheelchair services are available from aircraft to curb, and escorts are also available for low vision or physically challenged passengers needing assistance through the airport. Pedestrian walkways have tactile guide paths, and elevator buttons are braille-coded for visually impaired passengers. AUS has gone further by providing video phones, signs with raised lettering, accessible restrooms and water fountains, and dedicated seating for special needs passengers.

  • Are pets allowed to travel through Seattle-Tacoma International Airport?

    Yes, Fido is welcome to travel through SEA. However, TSA requires pets to remain within their carriers when traveling through the airport. Pets can only leave the kennel when using relief areas or walking through the security point. SEA has eight pet relief areas. The outdoor relief areas are outside Doors 2, 26, and 33 and near the parking garage. Indoor pet relief areas are in the South and North satellite, Concourse D, and Central Terminal.

Your guide to booking Seattle to Austin flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Monday. On this route, Sunday flights average $325, about $90 less than Monday fares (22% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 5 weeks before you fly. On this route, that window historically saves about 55% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Austin trip for January. Fares historically average $252 round-trip in that month - typically $165 less than the most expensive month, which is August (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Houston George Bush Intcntl Airport (IAH) can be cheaper than flying direct. The cheapest layover option averages $290 round-trip on this route - about $67 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Austin Bergstrom Airport.

    • Hyatt Place Austin Airport
    • Microtel Inn and Suites by Wyndham Austin Airport
    • Hilton Austin Airport
  • Seattle-Tacoma International Airport (SEA) consists of four terminals. The main and central terminals are next to each other, but you’ll need the free airport shuttle to get between the north and south terminals.
  • Around 943 kg of carbon is emitted per passenger on flights from Seattle to Austin. You can fly more sustainably with American Airlines, Alaska Airlines, and Southwest Airlines. Their flights emit 56%, 46%, and 43% less carbon per passenger.
  • Relax and unwind at a premium airline lounge before your flight to Austin. Alaska Airlines, Delta, United Airlines, and British Airways operate pay-per-use lounges at SEA that you can access with your flight ticket and by paying a fee.
  • If you need cash, banking services, or currency exchange services before your flight, a full-service US Bank branch is available at SEA. The bank is located in the main terminal, between checkpoints 3 and 4. The bank also operates several ATMs at SEA.
  • If you have time after your flight, watch planes take off and land from the observation deck at Austin-Bergstrom International Airport (AUS). It is an outdoor space with picnic tables, and you’ll find it adjacent to the runway, just east of the airport’s main entrance.

Prefer to fly direct from Seattle to Austin?

 
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Austin Bergstrom Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Austin Bergstrom

Monday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Tuesday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Wednesday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Thursday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Friday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Saturday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Sunday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

See more direct flights

Direct returns

Austin Bergstrom to Seattle/Tacoma Intl

Monday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Tuesday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Wednesday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Thursday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Friday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Saturday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Sunday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

See more direct flights

More options for your flight from Seattle to Austin

Complete your trip to Austin with a hotel stay or car rental