Cheap flights from Seattle-Tacoma to Austin-Bergstrom from $172
Updated 2026-09-21
1769 miles great-circle distance, typically flown in 3h 58m with 8 airlines operating direct service from Seattle-Tacoma (SEA) to Austin-Bergstrom (AUS). Fares on this corridor stay relatively stable across the year — booking 4–8 weeks ahead and choosing a midweek departure typically secures the best price.
Flying from Seattle-Tacoma
Seattle-Tacoma is Alaska Airlines' principal hub and Delta's growing Pacific Northwest base. The Link Light Rail Red Line runs from the airport's elevated station directly to Westlake in downtown Seattle in 38 minutes for $3.25 — possibly the easiest big-city transfer in the country. International long-haul has expanded sharply post-2023 with new direct service to Tokyo, Seoul, Frankfurt, London Heathrow and Auckland. Weather delays are rare; SEA is one of the most operationally reliable winter airports in the US.
Arriving in Austin
Austin-Bergstrom International is 6 miles southeast of downtown Austin. CapMetro Route 20 runs every 30 minutes between the airport and downtown for $1.25. Fares to Austin peak sharply for South by Southwest (mid-March), the Austin City Limits Festival (early October) and University of Texas football weekends; January and late summer are the cheapest. ULCC carriers Spirit and Frontier run heavy capacity.
Who flies SEA to AUS?
| Airline | IATA | Flight time | Cabin |
| Alaska Airlines | AS | 3h 58m | Economy |
| Delta Air Lines | DL | 3h 58m | Economy |
| Southwest Airlines | WN | 3h 58m | Economy |
| American Airlines | AA | 3h 58m | Economy |
| United Airlines | UA | 3h 58m | Economy |
| JetBlue Airways | B6 | 3h 58m | Economy |
| Spirit Airlines | NK | 3h 58m | Economy |
| Hawaiian Airlines | HA | 3h 58m | Economy |
8 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Seattle to Austin FAQs
Direct flights from Seattle-Tacoma (SEA) to Austin-Bergstrom (AUS) take approximately 3h 58m for the 1769-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
8 carriers operate direct service from Seattle-Tacoma (SEA) to Austin-Bergstrom (AUS): Alaska Airlines, Delta Air Lines, Southwest Airlines, American Airlines, United Airlines and 3 more. Frequencies vary by season and carrier — Alaska Airlines typically operates the highest weekly count on this corridor.
No — United States is domestic travel for US citizens. A US passport is not required for the 50 states, DC or US territories (Puerto Rico, US Virgin Islands, Guam, American Samoa, Northern Mariana Islands), though Real ID-compliant ID is required at TSA from May 2025.
Austin-Bergstrom (AUS) is the primary international airport for Austin. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.