Cheap flights from Austin-Bergstrom International to Seattle-Tacoma from $169
Updated 2026-07-07
1770 miles great-circle distance, typically flown in 3h 58m with 8 airlines operating direct service from Austin-Bergstrom International (AUS) to Seattle-Tacoma (SEA). 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 Austin-Bergstrom International
Austin-Bergstrom International sits about 5 miles southeast of downtown Austin on a former air force base. Southwest carries the most passengers, with American, Delta and United running large operations and British Airways, Lufthansa and KLM flying nonstop to Europe. The single Barbara Jordan Terminal is served by CapMetro Route 20 and the faster Route 100 Airport Flyer, reaching downtown in about 30 minutes for $1.25 — far below the roughly $30 rideshare fare. Fares spike around SXSW in March, ACL in October and the Formula 1 weekend, so avoid those windows for the lowest prices.
Arriving in Seattle
Seattle-Tacoma is 14 miles south of downtown Seattle, with the Link Light Rail Red Line running directly from the airport station to Westlake in 38 minutes for $3.25 — possibly the simplest big-city airport transfer in the United States. Fares peak in mid-summer (June–August) and around Bumbershoot/Labor Day; January and February are the cheapest months despite winter rain.
Who flies AUS to SEA?
| Airline | IATA | Flight time | Cabin |
| Southwest Airlines | WN | 3h 58m | Economy |
| American Airlines | AA | 3h 58m | Economy |
| Delta Air Lines | DL | 3h 58m | Economy |
| United Airlines | UA | 3h 58m | Economy |
| Spirit Airlines | NK | 3h 58m | Economy |
| Frontier Airlines | F9 | 3h 58m | Economy |
| JetBlue Airways | B6 | 3h 58m | Economy |
| Alaska Airlines | AS | 3h 58m | Economy |
8 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Austin to Seattle FAQs
Direct flights from Austin-Bergstrom International (AUS) to Seattle-Tacoma (SEA) take approximately 3h 58m for the 1770-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 Austin-Bergstrom International (AUS) to Seattle-Tacoma (SEA): Southwest Airlines, American Airlines, Delta Air Lines, United Airlines, Spirit Airlines and 3 more. Frequencies vary by season and carrier — Southwest 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.
Seattle-Tacoma (SEA) is the primary international airport for Seattle. 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.