SEA - AUS

$109 Find Cheap Flights from Seattle to Austin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Austin departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Austin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Austin.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Austin.
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Everything you should know

Cheapest round-trip
$185
Overall average: $342
Frontier
Sun 4/12Tue 4/21
SEA - AUS • 2 stops
Cheapest non-stop
$188
Typical prices: $229-$475
Delta
Wed 4/1Sun 4/5
SEA - AUS • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Delta's free Wi-Fi boosts productivity for SkyMiles members.
CapMetro’s Bus Route 20 offers a budget-friendly ride to downtown Austin.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $185 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Alaska Airlines and Delta. Average duration is 4h 13m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $134 (round-trip)
Shortest trip • 5h 10m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Austin!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seattle to Austin (SEA-AUS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Austin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Austin

Sun, Apr 12 - Tue, Apr 21
Frontier Logo
10:01 pm - 9:56 pm
SEA
-
AUS
21h 55m
2 stops
Frontier Logo
6:13 pm - 9:27 am
AUS
-
SEA
17h 14m
1 stop
$185Frontier
Wed, May 6 - Fri, May 8
Southwest Logo
11:40 am - 10:05 pm
SEA
-
AUS
8h 25m
2 stops
Southwest Logo
4:20 pm - 12:55 am
AUS
-
SEA
10h 35m
2 stops
$186Southwest
Wed, Apr 1 - Wed, Apr 8
Delta Logo
5:45 pm - 11:53 pm
SEA
-
AUS
4h 08mnonstop
Delta Logo
11:47 am - 2:27 pm
AUS
-
SEA
4h 40mnonstop
$188Delta
Sat, Apr 18 - Wed, Apr 22
Delta Logo
11:10 am - 9:15 pm
SEA
-
AUS
8h 05m
1 stop
Delta Logo
6:00 am - 8:40 am
AUS
-
SEA
4h 40mnonstop
$189Delta
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
4:20 pm - 8:36 pm
SEA
-
AUS
26h 16m
1 stop
Frontier Logo
9:51 pm - 3:05 pm
AUS
-
SEA
19h 14m
1 stop
$190Frontier
Sat, Apr 11 - Sun, Apr 26
Frontier Logo
12:42 pm - 10:05 am
SEA
-
AUS
19h 23m
1 stop
Frontier Logo
9:51 pm - 3:05 pm
AUS
-
SEA
19h 14m
1 stop
$191Frontier
Sat, Apr 11 - Tue, Apr 14
Frontier Logo
12:42 pm - 12:21 am
SEA
-
AUS
9h 39m
1 stop
Frontier Logo
6:13 pm - 9:27 am
AUS
-
SEA
17h 14m
1 stop
$192Frontier
Fri, Mar 27 - Thu, Apr 2
Frontier Logo
10:08 pm - 9:50 pm
SEA
-
AUS
21h 42m
2 stops
Frontier Logo
11:00 am - 11:37 am
AUS
-
SEA
26h 37m
1 stop
$194Frontier
Thu, Apr 9 - Mon, Apr 13
Frontier Logo
12:42 pm - 10:05 am
SEA
-
AUS
19h 23m
1 stop
Frontier Logo
6:45 am - 9:27 am
AUS
-
SEA
28h 42m
1 stop
$195Frontier
Thu, Mar 26 - Wed, Apr 1
Frontier Logo
12:24 pm - 12:16 am
SEA
-
AUS
9h 52m
1 stop
Frontier Logo
7:00 am - 11:37 am
AUS
-
SEA
30h 37m
1 stop
$196Frontier
Booking Insights

KAYAK's insights & trends for Seattle to Austin flights

Get data-powered insights and trends into flights from Seattle to Austin to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all round-trip flights from Seattle to Austin clicked on KAYAK for each day over the last 12 months.

For Seattle to Austin, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Austin back to Seattle, the best deals are generally found on Thursday, with Sunday being the most expensive.

What is the cheapest month to fly from Seattle to Austin?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Austin, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Austin is January, where tickets cost $252 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $362 and $361 respectively.

Can I save money by flying with a layover from Seattle to Austin?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $252 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Austin, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Austin, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to Austin

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
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.

Good to know

Low seasonJanuary
Cheapest flight$109
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 5% increase in price.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Austin

  • 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.

  • What is the cheapest flight from Seattle to Austin?

    In the last 3 days, the lowest price for a flight from Seattle to Austin was $109 for a one-way ticket and $185 for a round-trip.

  • Do I need a passport to fly between Seattle and Austin?

    No

  • Which airports will I be using when flying from Seattle to Austin?

    Seattle airport is called Seattle/Tacoma Intl and the only airport in Austin is Austin Bergstrom.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Austin?

    All the following airlines offer inflight Wi-Fi service on the Seattle to Austin flight route: Alaska Airlines, Delta, American Airlines, Aeromexico, JetBlue, and Hawaiian Airlines.

  • Which aircraft models fly most regularly from Seattle to Austin?

    The Boeing 737 is the aircraft model that flies most regularly on the Seattle to Austin flight route.

  • Which airline alliances offer flights from Seattle to Austin?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Seattle and Austin, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Seattle to Austin?

    There are nonstop flights from Seattle to Austin on a daily basis.

  • Which is the best airline for flights from Seattle to Austin, Alaska Airlines or Southwest?

    The two airlines most popular with KAYAK users for flights from Seattle to Austin are Alaska Airlines and Southwest. With an average price for the route of $339 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Southwest is also a great choice for the route, with an average price of $416 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Seattle to Austin?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Austin.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Austin?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Austin from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Austin?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Austin with an airline and back to Seattle with another airline. Booking your flights between Seattle and AUS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Austin?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Austin from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Austin

  • Looking for a cheap flight? 25% of our users found flights on this route for $153 or less one-way and $228 or less round-trip.
  • 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?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl to Austin Bergstrom.
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

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more direct flights

Direct returns

Austin Bergstrom to Seattle/Tacoma Intl

Monday

Alaska Airlines,Delta

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more direct flights

Reviews of the top 5 airlines serving from Seattle to Austin

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Austin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Austin? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 12027 reviews
8.1Boarding
7.0Entertainment
7.8Comfort
8.5Crew
7.1Food
Airline reviews

The flight was extremely smooth, and so was the landing. Great piloting.

10.0 ExcellentSara, Mar 2026
SEA - LAS
Read more Alaska Airlines reviews

The flight was extremely smooth, and so was the landing. Great piloting.

Plane was clean, staff was professional and flight was on time. No built in tv was still ok, as programs were offered that could synch to smart phones.

J was in the ER x 3...3 protruding discs...contacted Alaska many many days prior to cancel and request a refund or a credjt.. they only gave me 50 % credit....outrageous seeing how i have a doctors letter....just plain inhuman. AI sucks!

The flight was too short. No snacks or drinks offered.

The flight attendant was friendly and attentive. Although our interaction was brief—- it made a difference. The crew was upfront about turbulence. I like the Maui pretzels.

Everything was good. Please have a wheat free option for snacks in the future.

They are always so great! Friendly, on time if not early, organized boarding process. Great price too.

I’m not sure there is anything that can be improved, even the cost was fantastic.

Very good. Easy check in, attentive flight attendant, and on time departure/landing.

It was all good, no delays which was a worry. All great

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

No delays and arrived to destination 30 min early. Staff was super friendly.

Everything a cheap airline should be at normal airline rates.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

First flight out and was 85 minutes delayed. Notification came out way too late

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

Only freetext wifi was available in flight; browsing WiFi required payment. Since the seats had no in flight entertainment, Delta should revisit this policy on this longer flight.

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

It was delayed but other than that it was great.

Because I was moved to an exit row, the snacks in economy comfort, the selection of snacks was better.

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

There was no wifi available at any price -- the plane did not have wifi equipment. Movie choices were blah - hits from the past; nothing recent. The food was blah airplane food. They should have had Mai Tai drinks available as per the Hawaiian Airlines magazine, but they had none onboard.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

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

Information on your arrival and departure airports