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Flights from Austin to Seattle

Flight Info | Austin to Seattle

The distance between Austin and Seattle is approximately 2,830.87 km. It takes around 4 hours 31 minutes on average to fly from Austin to Seattle. Based on Trip.com's data, travel demand peaks in July. The cheapest month to book is November.

Cheapest one-way
$85
Frontier Airlines Frontier Airlines AUS-SEA 20h 51m · 1 stop Tue, Oct 13
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Cheapest round-trip
$172
Frontier Airlines Frontier Airlines AUS-SEA 12h 38m · 2 stops Thu, Sep 24 - Sat, Sep 26
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Recommended airlines
Frontier Airlines Frontier Airlines Cheapest · From $85 Alaska Airlines Alaska Airlines Most booked
When to travel
January
Cheapest
July
Peak season for travel
Route details
2,830.87 km
Flight distance
4h 31m
Average flight time

Find flight deals from Austin to Seattle for the next 3 months. Book one way flights from $85 or round trip flights from $172.

      • AUS 11:04 PM
        12h 38m
        1 stop
        SEA 9:42 AM
        Austin - Seattle | Thu, Sep 24 | Frontier Airlines
        SEA 9:45 PM
        11h 30m
        1 stop
        AUS 11:15 AM
        Seattle - Austin | Sat, Sep 26 | Frontier Airlines
        $172 $292
        41% off
        41% off
        $292 $172
      • AUS 3:32 PM
        20h 10m
        1 stop
        SEA 9:42 AM
        Austin - Seattle | Wed, Sep 16 | Frontier Airlines
        SEA 4:27 PM
        25h 2m
        1 stop
        AUS 7:29 PM
        Seattle - Austin | Wed, Sep 23 | Frontier Airlines
        $173 $292
        41% off
        41% off
        $292 $173
      • AUS 3:32 PM
        20h 10m
        1 stop
        SEA 9:42 AM
        Austin - Seattle | Wed, Sep 9 | Frontier Airlines
        SEA 4:27 PM
        25h 2m
        1 stop
        AUS 7:29 PM
        Seattle - Austin | Wed, Sep 16 | Frontier Airlines
        $173 $292
        41% off
        41% off
        $292 $173
      • AUS 11:04 PM
        12h 38m
        1 stop
        SEA 9:42 AM
        Austin - Seattle | Thu, Oct 1 | Frontier Airlines
        SEA 4:27 PM
        25h 2m
        1 stop
        AUS 7:29 PM
        Seattle - Austin | Tue, Oct 6 | Frontier Airlines
        $173
        41% off
        $292 $173
      • AUS 8:15 PM
        15h 4m
        1 stop
        SEA 9:19 AM
        Austin - Seattle | Sat, Sep 5 | Frontier Airlines
        SEA 8:48 PM
        15h 49m
        1 stop
        AUS 2:37 PM
        Seattle - Austin | Tue, Sep 8 | Frontier Airlines
        $173
        41% off
        $292 $173
      • AUS 1:25 PM
        27h 43m
        1 stop
        SEA 3:08 PM
        Austin - Seattle | Fri, Sep 11 | Frontier Airlines
        SEA 4:27 PM
        25h 2m
        1 stop
        AUS 7:29 PM
        Seattle - Austin | Wed, Sep 16 | Frontier Airlines
        $184
        37% off
        $292 $184
      • AUS 6:15 AM
        29h 4m
        1 stop
        SEA 9:19 AM
        Austin - Seattle | Mon, Sep 7 | Frontier Airlines
        SEA 4:27 PM
        18h 3m
        1 stop
        AUS 12:30 PM
        Seattle - Austin | Thu, Sep 10 | Frontier Airlines
        $185
        37% off
        $292 $185
      • AUS 6:15 AM
        9h 7m
        1 stop
        SEA 1:22 PM
        Austin - Seattle | Wed, Sep 2 | Frontier Airlines
        SEA 7:06 PM
        26h 35m
        1 stop
        AUS 11:41 PM
        Seattle - Austin | Wed, Sep 2 | Frontier Airlines
        $189
        35% off
        $292 $189
      • AUS 1:25 PM
        27h 43m
        1 stop
        SEA 3:08 PM
        Austin - Seattle | Mon, Sep 14 | Frontier Airlines
        SEA 4:27 PM
        25h 2m
        1 stop
        AUS 7:29 PM
        Seattle - Austin | Fri, Sep 18 | Frontier Airlines
        $195
        33% off
        $292 $195
      • AUS 8:24 PM
        20h 44m
        1 stop
        SEA 3:08 PM
        Austin - Seattle | Sat, Sep 26 | Frontier Airlines
        SEA 2:40 PM
        4h 5m
        Nonstop
        AUS 8:45 PM
        Seattle - Austin | Sat, Oct 3 |
        $206
        28% off
        $292 $206
      • AUS 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Austin - Seattle | Thu, Aug 20 | Normal Airline
        SEA 3:00 PM
        6h
        Nonstop
        AUS 4:00 PM
        Seattle - Austin | Sat, Aug 22 | Normal Airline
        Find more flights
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      • AUS 8:21 PM
        20h 51m
        1 stop
        SEA 3:12 PM
        Austin - Seattle | Tue, Oct 13 | Frontier Airlines
        $85 $146
        42% off
        42% off
        $146 $85
      • AUS 6:15 AM
        29h 4m
        1 stop
        SEA 9:19 AM
        Austin - Seattle | Mon, Aug 31 | Frontier Airlines
        $89 $146
        39% off
        39% off
        $146 $89
      • AUS 8:21 PM
        20h 51m
        1 stop
        SEA 3:12 PM
        Austin - Seattle | Mon, Oct 12 | Frontier Airlines
        $108 $146
        26% off
        26% off
        $146 $108
      • AUS 9:24 AM
        7h 28m
        1 stop
        SEA 2:52 PM
        Austin - Seattle | Tue, Oct 13 | American Airlines
        $113
        23% off
        $146 $113
      • AUS 1:25 PM
        27h 43m
        1 stop
        SEA 3:08 PM
        Austin - Seattle | Mon, Sep 14 | Frontier Airlines
        $115
        21% off
        $146 $115
      • AUS 6:15 AM
        9h 7m
        1 stop
        SEA 1:22 PM
        Austin - Seattle | Wed, Sep 2 | Frontier Airlines
        $115
        21% off
        $146 $115
      • AUS 11:04 PM
        12h 38m
        1 stop
        SEA 9:42 AM
        Austin - Seattle | Thu, Sep 17 | Frontier Airlines
        $115
        21% off
        $146 $115
      • AUS 8:15 PM
        20h 53m
        1 stop
        SEA 3:08 PM
        Austin - Seattle | Tue, Sep 8 | Frontier Airlines
        $118
        19% off
        $146 $118
      • AUS 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Austin - Seattle | Thu, Aug 20 | Normal Airline
        Find more flights
        Find more flights

Popular airlines from Austin to Seattle

You can choose from 3 airlines that fly from Austin to Seattle, including Alaska Airlines, Frontier Airlines, and Delta Air Lines. Frontier Airlines has lowest fares on this route.
Alaska Airlines logo Alaska Airlines
Frontier Airlines logo Frontier Airlines
Delta Air Lines logo Delta Air Lines
Airlines are determined based on actual purchased flight tickets from Austin to Seattle according to previous 12 months data from Trip.com.

Trip.com price insights on flights from Austin to Seattle

Which month has the cheapest one-way flights from Austin to Seattle?

The average price of one-way flights from Austin to Seattle purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Austin to Seattle is January, with an average price of $178; while the month with the highest flight price is usually October, with an average price of up to $379.

$379
$279
$178
$78
    Cheapest
  • $319
    Aug
  • $214
    Sep
  • $379
    Oct
  • $227
    Nov
  • $347
    Dec
  • $178
    Jan
  • $204
    Feb
  • $288
    Mar
  • $255
    Apr
  • $284
    May
  • $333
    Jun
  • $253
    Jul

When is the cheapest day to fly from Austin to Seattle during Labor Day?

Data is based on the lowest one-way price from Austin to Seattle during Labor Day on Trip.com in the past 3 days.

Labor Day is scheduled for Sep 7. The cheapest flights from Austin to Seattle are available on Sep 8, with fares starting at $129.

$167
$148
$129
$110
    Cheapest
  • $167
    4
    Sep
  • $131
    5
  • $148
    6
  • $148
    7
  • $129
    8
  • $166
    9

Frequently Asked Questions

  • What are the cheapest flights from Austin to Seattle (AUS-SEA)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as $85 on Cheapest nonstop routes (e.g. AUS to SEA on Tue, Oct 13), while Frontier Airlines offers Cheapest nonstop round-trips from $172 departing on Thu, Sep 24 and returning on Sat, Sep 26.
  • At the moment, you can catch a nonstop flight from Austin to Seattle with the following airlines, including: Alaska Airlines Frontier Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 4 hours 31 minutes to fly from Austin (AUS) to Seattle (SEA).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Austin to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 45 flight per week flying from Austin to Seattle. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: -/M/-/-/-/-/- -- AS215 (08:37)
  • To find best deals on flights from Austin to Seattle, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Oct 13, with one-way flights priced at just $85.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Austin to Seattle is November, when demand for travel is lower.
  • After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Austin to Seattle on August 27, 2026 with Frontier Airlines, with prices starting at $120.
  • You can land at any one of the following hubs in Seattle, with Austin-Bergstrom International Airport to Seattle-Tacoma International Airport (AUS-SEA) is by far the most common option on this route: Seattle-Tacoma International Airport (SEA) King County (Boeing Field) International Airport (BFI) Kenmore Air Harbor Seaplane Base (LKE).
  • The time difference between Seattle and Austin is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Austin to Seattle is $203. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Austin to Seattle is $416. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter Austin and Seattle, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.
  • Frontier Airlinesare the most popular budget airlines flying from Austin to Seattle. Check baggage, seat and payment fees before comparing the final price.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.