Distance From Sourdough Airport to Seattle–Tacoma International Airport

The distance from Sourdough Airport () to Seattle–Tacoma International Airport (SEA) is 169 miles or 271 kilometers or 147 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Tonasket ( United States ) to Seattle ( United States )?

A one-way nonstop (direct) flight between Tonasket and Seattle takes around 0 hours 23 minutes.

Estimated flight time from Sourdough Airport, Tonasket, United States to Seattle–Tacoma International Airport, Seattle, United States is 0 hours 23 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - SEA

Kilometers		271 km
Statute Miles		169 miles
Nautical Miles		147 nm
Avg. Time of Flight		0 hours 23 minutes

Sourdough Airport to Seattle–Tacoma International Airport Flight Route Map - to SEA Flight Path

Location of Sourdough Airport & Seattle–Tacoma International Airport is given below.
Click the map to view Tonasket to Seattle nonstop flight path and travel direction.

Click to see flight route on Google Map between Tonasket, United States and Seattle, United States. .

Nonstop flight route between Tonasket, United States and Seattle, United States.

Time Difference Between the Airports • - SEA

Time difference between Tonasket (United States) and Seattle (United States) is 0 Hours.

Location	Local Time
Tonasket (United States)	2026-06-20, 00:55:16 MDT
Seattle (United States)	2026-06-20, 00:55:16 MDT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Sourdough Airport ( / 5WA0) Tonasket, United States

Destination

Seattle–Tacoma International Airport (SEA / KSEA) Seattle, United States