Domestic route
Cheap flights from Austin to Seattle
Austin-Bergstrom International Airport (AUS) to Seattle-Tacoma International Airport (SEA). 1,769 miles, 4h 10m nonstop.
AUS to SEA at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 1,769 milesgreat-circle
- Typical flight time
- 4h 10mnonstop, gate to gate
- Nonstop airlines
- DLWNASNK5 airlinesDelta, Southwest, Alaska
- Nonstop flights per day
- 22all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday18% less than Friday
- Time difference
- 2h behindSeattle vs Austin
Austin to Seattle
Round trips from $139
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 12.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppAustin to Seattle fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Austin to Seattle
5 airlines fly nonstop with 22 departures a day combined, plus 4 more with one stop.
- ASAlaska AirlinesoneworldNonstop · 7 flights a day · first checked bag from $35
- DLDelta Air LinesSkyTeamNonstop · 7 flights a day · first checked bag from $35
- WNSouthwest AirlinesLow-costNonstop · 4 flights a day · first checked bag from $35
- F9Frontier AirlinesLow-costNonstop · 2 flights a day · first checked bag from $55
- NKSpirit AirlinesLow-costNonstop · 2 flights a day · first checked bag from $55
- AAAmerican AirlinesoneworldConnecting via DFW, ORD, PHX, LAX · first checked bag from $40
- B6JetBlueConnecting via LAX · first checked bag from $40
- SYSun Country AirlinesLow-costConnecting via MSP · first checked bag from $45
- UAUnited AirlinesStar AllianceConnecting via ORD, DEN, IAH, SFO, LAX · first checked bag from $40
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Los Angeles (LAX)AAUAB63 airlines
- Chicago (ORD)AAUA2 airlines
- Dallas (DFW)AA1 airline
- Phoenix (PHX)AA1 airline
- Denver (DEN)UA1 airline
Tips for this route
- Delta, Southwest, Alaska and Spirit all fly AUS to SEA nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $139; September 2026 is the most expensive at $185 and up, a difference of $46 per traveler.
- Departing on a Tuesday averages 18% less than a Friday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.
- Seattle is 2 hours behind Austin. A morning departure lands in Seattle with most of the day left; an evening flight arrives close to local dinner time.
Destination guide
Seattle: Coffee, mountains and Puget Sound
Seattle is the Pacific Northwest's gateway: Pike Place Market, the Space Needle and ferries across Puget Sound, with Mount Rainier and the Olympic Peninsula a couple of hours away. Sea-Tac is a Delta and Alaska hub with light rail downtown.
Best time to visit: July–September is dry, sunny and gorgeous — and the most expensive. May–June and late September are good compromises. October–April is gray and drizzly but cheap.
Flying the other way? Seattle to AustinFares, airlines and tips for SEA to AUS.Ready to compare live fares?
See every airline on AUS–SEA side by side with bags and seat rules spelled out.
Search Austin to SeattleAustin to Seattle: common questions
How long is the flight from Austin to Seattle?
A nonstop flight from Austin (AUS) to Seattle (SEA) takes about 4h 10m gate to gate, covering 1,769 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.
Which airlines fly nonstop from AUS to SEA?
Delta Air Lines, Southwest Airlines, Alaska Airlines, Spirit Airlines and Frontier Airlines operate nonstop flights from Austin (AUS) to Seattle (SEA), with 22 nonstop departures a day between them. One-stop options connect through LAX, ORD and DFW.
What is the cheapest month to fly from Austin to Seattle?
Over the next six months, January 2027 has the lowest round-trip fares from Austin (AUS) to Seattle (SEA), starting at $139 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Austin to Seattle flights?
Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Austin and Seattle?
Seattle is 2 hours behind Austin. AUS is on America/Chicago time and SEA on America/Los Angeles time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
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