Trip.com
>
Flights
>
United States
>
Texas
>
Flights to Austin
Hotels in Austin
>
Cheap Flights from Seattle to Austin

Hi, I've summed up all the key info for Seattle to Austin flights

Cheapest one-way

S$ 99
Frontier Airlines Sat, Oct 31

64% below next 30d avg. (S$ 274)

Cheapest return

S$ 248
Frontier Airlines Sat, Oct 24

51% below next 30d avg. (S$ 505)

Best time to book

November Cheapest month
July Peak month

Recommended airlines

With a lowest one-way fare of S$ 99 , travelers can expect an average price of S$ 274 for upcoming trips, while round-trip tickets start at S$ 248 . Flights to Austin can arrive at: Austin-Bergstrom International Airport (AUS) . The most common route connects Seattle-Tacoma International Airport and Austin-Bergstrom International Airport (SEA–AUS). To secure the best rates, booking 40 days in advance is recommended, and the cheapest travel days are Tuesday, Wednesday, and Saturday .

Updated 2d ago · This content is an AI-powered summary based on Trip.com data. Prices and availability are subject to change. Please refer to actual prices, availability, and travel conditions.

Explore the cheapest one-way and round-trip flights from Seattle to Austin over the next 90 days, with one-way fares from S$ 99 and round-trip from S$ 248. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SEA 17:08
        4h 6m
        Direct
        AUS 23:14
        Seattle - Austin | Sat, Oct 17 | Alaska Airlines
        AUS 08:35
        4h 33m
        Direct
        SEA 11:08
        Austin - Seattle | Wed, Oct 21 | Alaska Airlines
        S$ 295 S$ 343
        14% off
        14% off
        S$ 343 S$ 295
      • SEA 11:00
        4h 11m
        Direct
        AUS 17:11
        Seattle - Austin | Sat, Oct 17 | Delta Air Lines
        AUS 06:00
        4h 41m
        Direct
        SEA 08:41
        Austin - Seattle | Wed, Oct 21 | Delta Air Lines
        S$ 297 S$ 343
        13% off
        13% off
        S$ 343 S$ 297
      • SEA 08:15
        4h 20m
        Direct
        AUS 14:35
        Seattle - Austin | Thu, Oct 15 | Alaska Airlines
        AUS 19:07
        4h 35m
        Direct
        SEA 21:42
        Austin - Seattle | Sun, Oct 18 | Alaska Airlines
        S$ 298 S$ 343
        13% off
        13% off
        S$ 343 S$ 298
      • SEA 07:15
        4h 20m
        Direct
        AUS 13:35
        Seattle - Austin | Thu, Oct 15 | Delta Air Lines
        AUS 12:11
        4h 39m
        Direct
        SEA 14:50
        Austin - Seattle | Sun, Oct 18 | Delta Air Lines
        S$ 301
        12% off
        S$ 343 S$ 301
      • SEA 07:16
        4h 11m
        Direct
        AUS 13:27
        Seattle - Austin | Sun, Oct 4 | Delta Air Lines
        AUS 06:00
        4h 41m
        Direct
        SEA 08:41
        Austin - Seattle | Thu, Oct 8 | Delta Air Lines
        S$ 301
        12% off
        S$ 343 S$ 301
      • SEA 07:15
        4h 20m
        Direct
        AUS 13:35
        Seattle - Austin | Thu, Oct 8 | Delta Air Lines
        AUS 06:00
        4h 41m
        Direct
        SEA 08:41
        Austin - Seattle | Mon, Oct 12 | Delta Air Lines
        S$ 301
        12% off
        S$ 343 S$ 301
      • SEA 07:15
        4h 20m
        Direct
        AUS 13:35
        Seattle - Austin | Wed, Oct 7 | Delta Air Lines
        AUS 06:00
        4h 41m
        Direct
        SEA 08:41
        Austin - Seattle | Sun, Oct 11 | Delta Air Lines
        S$ 301
        12% off
        S$ 343 S$ 301
      • SEA 17:40
        4h 10m
        Direct
        AUS 23:50
        Seattle - Austin | Thu, Nov 5 | Delta Air Lines
        AUS 06:00
        4h 41m
        Direct
        SEA 08:41
        Austin - Seattle | Mon, Nov 9 | Delta Air Lines
        S$ 301
        12% off
        S$ 343 S$ 301
      • SEA 16:27
        24h 59m
        1 stop
        AUS 19:26
        Seattle - Austin | Sat, Oct 24 | Frontier Airlines
        AUS 13:17
        23h 42m
        1 stop
        SEA 10:59
        Austin - Seattle | Wed, Oct 28 | Frontier Airlines
        S$ 248
        28% off
        S$ 343 S$ 248
      • SEA 13:00
        17h 25m
        1 stop
        AUS 14:00
        Seattle - Austin | Sun, Sep 13 | Normal Airline
        AUS 15:00
        6h
        Direct
        SEA 16:00
        Austin - Seattle | Tue, Sep 15 | Normal Airline
        Find more flights
        Find more flights
      • SEA 16:27
        24h 59m
        1 stop
        AUS 19:26
        Seattle - Austin | Sat, Oct 31 | Frontier Airlines
        S$ 99 S$ 175
        43% off
        43% off
        S$ 175 S$ 99
      • SEA 16:27
        24h 59m
        1 stop
        AUS 19:26
        Seattle - Austin | Sat, Oct 24 | Frontier Airlines
        S$ 103 S$ 175
        41% off
        41% off
        S$ 175 S$ 103
      • SEA 16:27
        24h 59m
        1 stop
        AUS 19:26
        Seattle - Austin | Sat, Oct 10 | Frontier Airlines
        S$ 125 S$ 175
        28% off
        28% off
        S$ 175 S$ 125
      • SEA 16:27
        24h 59m
        1 stop
        AUS 19:26
        Seattle - Austin | Wed, Oct 21 | Frontier Airlines
        S$ 130
        26% off
        S$ 175 S$ 130
      • SEA 21:45
        11h 30m
        1 stop
        AUS 11:15
        Seattle - Austin | Sun, Sep 13 | Frontier Airlines
        S$ 143
        18% off
        S$ 175 S$ 143
      • SEA 16:27
        25h 2m
        1 stop
        AUS 19:29
        Seattle - Austin | Wed, Oct 7 | Frontier Airlines
        S$ 146
        17% off
        S$ 175 S$ 146
      • SEA 16:27
        25h 2m
        1 stop
        AUS 19:29
        Seattle - Austin | Thu, Oct 1 | Frontier Airlines
        S$ 149
        15% off
        S$ 175 S$ 149
      • SEA 16:27
        25h 2m
        1 stop
        AUS 19:29
        Seattle - Austin | Sat, Oct 3 | Frontier Airlines
        S$ 154
        12% off
        S$ 175 S$ 154
      • SEA 13:00
        17h 25m
        1 stop
        AUS 14:00
        Seattle - Austin | Sun, Sep 13 | Normal Airline
        Find more flights
        Find more flights

Flight.News
Over the past 7 days, flights from Seattle to Austin have operated an average of 18 times per day, with 37.7% on-time departure rate and 87.2% on-time arrival rate.

Which airlines are the most popular for Seattle to Austin flights?

You can choose from 2 airlines that fly from Seattle to Austin, including Alaska Airlines, American Airlines, Frontier Airlines offers the lowest prices on this route.
Alaska Airlines logo Alaska Airlines
American Airlines logo American Airlines
Airlines are determined based on actual purchased flight tickets from Seattle to Austin according to previous 12 months data from Trip.com.

Flying from Seattle to Austin

The distance between Seattle and Austin is approximately 2,830.87km. It takes around 4 hours 23 minutes on average to fly from Seattle to Austin. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is November.

Cheapest one-way flight price S$ 99
Cheapest return ticket price S$ 248
Off-season for travel November
Peak season for travel July
Flight distance 2,830.87km
Average flight time 4 hours 23 minutes
Popular airline Alaska Airlines
Frequency ～30/week
Flight statistics for the Seattle–Austin route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Seattle to Austin.

What is the cheapest month for one-way flights from Seattle to Austin?

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

Based on Trip.com’s data, the cheapest month for flights from Seattle to Austin is September, with an average price of S$ 204, and the most expensive month is March, with an average price of up to S$ 515.

S$ 515
S$ 360
S$ 204
S$ 49
  • S$ 204
    Sep
  • S$ 384
    Oct
  • S$ 497
    Nov
  • S$ 480
    Dec
  • S$ 255
    Jan
  • S$ 305
    Feb
  • S$ 515
    Mar
  • S$ 493
    Apr
  • S$ 370
    May
  • S$ 411
    Jun
  • S$ 487
    Jul
  • S$ 395
    Aug

Frequently Asked Questions

  • Which airlines offer the cheapest flights from Seattle to Austin?

    Based on Trip.com data, Frontier Airlines offers Cheapest nonstop one-way flights from S$ 99 (for example, SEA–AUS on Sat, Oct 31). For a Cheapest nonstop return flight, Frontier Airlines offers fares from S$ 248, departing on Sat, Oct 24 and returning on Wed, Oct 28.
  • At the moment, you can catch a direct flight from Seattle to Austin with the following airlines, including: American Airlines Alaska Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 4 hours 23 minutes to fly from Seattle (SEA) to Austin (AUS).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Austin 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.
  • On average, 46 direct flights operate each week between Seattle and Austin. See below the schedules of the main airlines serving this route:
    Alaska Airlines: S/M/T/W/T/F/S – AS352 (departure at 09:19) American Airlines: S/M/T/W/T/F/S – AA7476 (departure at 09:19)
  • Here are some tips for finding the best flight deals from Seattle to Austin on Trip.com:
    · Be flexible with your travel dates. The cheapest flight is currently on Sat, Oct 31, with one-way fares from just S$ 99.
    · Compare airlines. Frontier Airlines currently offers the lowest fares on this route.
    · Set up a price alert to track fare changes without searching every day.
    · Check Trip.com regularly for flight deals and available promo codes.
    · Avoid peak season or book early. July is generally the busiest month for travel to Austin.
    · Get exclusive promo codes on the Trip.com app.
  • The cheapest month to book a flight from Seattle to Austin is usually November, when demand is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Seattle to Austin on September 11, 2026 with Frontier Airlines, with prices starting at S$ 112.
  • Flights to Austin can arrive at: Austin-Bergstrom International Airport (AUS). The most common route connects Seattle-Tacoma International Airport and Austin-Bergstrom International Airport (SEA–AUS).
  • The time difference between Austin and Seattle is 2h.
  • Tickets can only be changed or cancelled 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 Seattle to Austin is S$ 274. 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 Seattle to Austin is S$ 505. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter Seattle and Austin, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

Find Cheap Flights & Deals on Trip.com

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

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.