Distance From Logan International Airport to Seattle–Tacoma International Airport, BOS - SEA Distance

The distance from Logan International Airport (BOS) to Seattle–Tacoma International Airport (SEA) is 2489 miles or 4006 kilometers or 2162 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 Boston ( United States ) to Seattle ( United States )?

A one-way nonstop (direct) flight between Boston and Seattle takes around 5 hours 43 minutes.

Estimated flight time from Logan International Airport, Boston, United States to Seattle–Tacoma International Airport, Seattle, United States is 5 hours 43 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 • BOS - SEA

Kilometers		4006 km
Statute Miles		2489 miles
Nautical Miles		2162 nm
Avg. Time of Flight		5 hours 43 minutes

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

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

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

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

Time Difference Between the Airports • BOS - SEA

Time difference between Boston (United States) and Seattle (United States) is 2 Hours.
Seattle time is 2 Hours behind Boston.

Location	Local Time
Boston (United States)	2025-12-05, 23:21:03 EST
Seattle (United States)	2025-12-05, 21:21:03 MST

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

Logan International Airport (BOS / KBOS) Boston, United States

Destination

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