Find Cheapest Airlines Flying from Seattle to Austin

Choose from 1 carriers that fly from Seattle to Austin, including Alaska Airlines, Enjoy the cheapest tickets on this route with Delta Air Lines.
Alaska Airlines logo Alaska Airlines
Airlines are determined based on actual purchased flight tickets from Seattle to Austin according to previous 12 months data from Trip.com.

Explore the cheapest flights from Seattle to Austin in the next three months. Based on Trip.com's data from the latest 7 days, one-way direct flights start at AU$ 138, and round-trip direct tickets start at AU$ 214.

Displayed flight fares from Seattle to Austin are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Seattle to Austin Flight Details

The distance between Seattle and Austin is approximately 2,830.87km. It takes around 4 hours 17 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 priceAU$ 80
Cheapest return ticket priceAU$ 214
Off-season for travelNovember
Peak season for travelJuly
Flight distance2,830.87km
Average flight time4 hours 17 minutes
Popular airlineAlaska Airlines
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?

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

According to Trip.com's data, the cheapest month for flights from Seattle to Austin is April, with an average price of AU$ 175. Conversely, the most expensive month is typically March, with an average price of up to AU$ 558.

AU$ 558
AU$ 367
AU$ 175
0
  • AU$ 175
    Apr
  • AU$ 300
    May
  • AU$ 506
    Jun
  • AU$ 340
    Jul
  • AU$ 452
    Aug
  • AU$ 224
    Sep
  • AU$ 417
    Oct
  • AU$ 539
    Nov
  • AU$ 520
    Dec
  • AU$ 276
    Jan
  • AU$ 330
    Feb
  • AU$ 558
    Mar

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

Data is based on the average flight price for each day of the week from Seattle to Austin on Trip.com over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to fly from Seattle to Austin is Tuesday, with average prices lower than on other days. Avoid Sunday, as prices are usually highest then.

AU$ 532
AU$ 424
AU$ 316
AU$ 208
  • AU$ 358
    Mon
  • AU$ 316
    Tue
  • AU$ 328
    Wed
  • AU$ 432
    Thu
  • AU$ 351
    Fri
  • AU$ 439
    Sat
  • AU$ 532
    Sun

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

Data is based on the lowest one-way fares from Seattle to Austin during ANZAC Day Holiday, sourced from the Trip.com database over the last 3 days.

ANZAC Day Holiday runs from Apr 25 to Apr 27. The cheapest flights from Seattle to Austin are available on Apr 27, with fares starting at AU$ 184.

AU$ 528
AU$ 356
AU$ 184
AU$ 12
    Cheapest
  • AU$ 190
    23
    Apr
  • AU$ 186
    24
  • AU$ 528
    25
  • AU$ 187
    26
  • AU$ 184
    27
  • AU$ 188
    28

Flight FAQs

  • Which airlines offer the cheapest flights from Seattle (SEA) to Austin (AUS)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as AU$ 80 on Cheapest nonstop routes (e.g. SEA to AUS on Sat, May 16), while Alaska Airlines offers Cheapest nonstop round-trips from AU$ 214 departing on Sat, May 9 and returning on Fri, May 15.
  • At the moment, you can catch a direct flight from Seattle to Austin with the following airlines, including: 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 17 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.
  • Based on Trip.com data in the past 4 weeks, there is 54 flight per week flying from Seattle to Austin. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/T/W/T/F/S -- AS502 (08:33)
  • To find best deals on flights from Seattle to Austin, 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 Sat, May 16, with one-way flights priced at just AU$ 80.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · 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 Austin travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seattle to Austin is November, when demand for travel is lower.
  • After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Seattle to Austin on April 23, 2026 with Frontier Airlines, with prices starting at AU$ 106.
  • You can land at any one of the following hubs in Austin, with Seattle-Tacoma International Airport to Austin-Bergstrom International Airport (SEA-AUS) is by far the most common option on this route: Austin-Bergstrom International Airport (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.

Trip.com Airline Insights on Flights from Seattle toAustin

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

Data is based on the average price of all nonstop flights from Seattle to Austin on Trip.com in the past 12 months.

Based on Trip.com data from the past 12 months, Frontier Airlines offers the cheapest nonstop flights from Seattle to Austin, with an average price of AU$ 243.

AU$ 127
AU$ 243
AU$ 359
AU$ 475
AU$ 591
Frontier Airlines
AU$ 243
Frontier Airlines
Hawaiian Airlines
AU$ 392
Hawaiian Airlines
Delta Air Lines
AU$ 445
Delta Air Lines
United Airlines
AU$ 448
United Airlines
Alaska Airlines
AU$ 453
Alaska Airlines
American Airlines
AU$ 591
American Airlines

Which airlines operate the most flights from Seattle to Austin?

Data is based on the number of flights from Seattle to Austin operated by each airline on Trip.com in the past month.

Based on Trip.com data from the past month, Delta Air Lines operates the most flights from Seattle to Austin, with 21 flight per week.

12
15
18
21
Delta Air Lines
21
Delta Air Lines
Alaska Airlines
20
Alaska Airlines
Hawaiian Airlines
20
Hawaiian Airlines
American Airlines
20
American Airlines
Air Tahiti Nui
18
Air Tahiti Nui
Korean Air
15
Korean Air

How many flights are there each day from Seattle to Austin?

The data is based on the flight numbers for each day of the week from Seattle to Austin within the Trip.com database over the past month.

Based on Trip.com data from the past month, the most flights from Seattle to Austin depart on Monday, and the fewest flights depart on Friday.

101
93
85
77
Highest
101
Mon
87
Tue
86
Wed
98
Thu
85
Fri
87
Sat
90
Sun

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

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, regulatory fees, etc) with all fees confirmed before payment. Fees for baggage, meals, Wi-Fi, 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.