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Distance between Boston, MA (BOS) and Seattle, WA (SEA)

Flight distance from Boston to Seattle (Logan International Airport – Seattle–Tacoma International Airport) is 2496 miles / 4016 kilometers / 2169 nautical miles. Estimated flight time is 5 hours 13 minutes.

Driving distance from Boston (BOS) to Seattle (SEA) is 2997 miles / 4823 kilometers and travel time by car is about 54 hours 35 minutes.

Boston – Seattle

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2496
Miles
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4016
Kilometers
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2169
Nautical miles

How far is Seattle from Boston?

There are several ways to calculate distances between Los Angeles and Chicago. Here are two common methods:

Vincenty's formula (applied above)
  • 2495.684 miles
  • 4016.415 kilometers
  • 2168.690 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 2488.911 miles
  • 4005.514 kilometers
  • 2162.805 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

Flight Duration

Estimated flight time from Logan International Airport to Seattle–Tacoma International Airport is 5 hours 13 minutes.

Time difference

The time difference between Boston and Seattle is 3 hours. Seattle is 3 hours behind Boston.
Boston time to Seattle time converter

Carbon dioxide emissions

On average flying from Boston to Seattle generates about 275 kg of CO2 per passenger, 275 kilograms is equal to 606 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Boston to Seattle

Shortest flight path between Logan International Airport (BOS) and Seattle–Tacoma International Airport (SEA).

Airport information

Origin Logan International Airport
City: Boston, MA
Country: United States Flag of United States
IATA Code: BOS
ICAO Code: KBOS
Coordinates: 42°21′51″N, 71°0′18″W
Destination Seattle–Tacoma International Airport
City: Seattle, WA
Country: United States Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W

Airlines flying from Boston (BOS) to Seattle (SEA)

Alaska Airlines
American Airlines
JetBlue Airways