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How far is Boston, MA, from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Boston (Logan International Airport) is 2496 miles / 4016 kilometers / 2169 nautical miles. The estimated flight time is 5 hours and 13 minutes.

Driving distance from Seattle (SEA) to Boston (BOS) is 2942 miles / 4734 kilometers and travel time by car is about 54 hours 27 minutes.

Seattle–Tacoma International Airport – Logan International Airport

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2496
Miles
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4016
Kilometers
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2169
Nautical miles

Distance from Seattle to Boston

There are several ways to calculate the distance from Seattle to Boston. Here are two standard 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 planet.

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).

How long does it take to fly from Seattle to Boston?

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

What is the time difference between Seattle and Boston?

The time difference between Seattle and Boston is 3 hours. Boston is 3 hours ahead of Seattle.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Logan International Airport (BOS)

On average, flying from Seattle to Boston generates about 275 kg of CO2 per passenger, and 275 kilograms equals 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 Seattle to Boston

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

Airport information

Origin 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
Destination 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

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

Alaska Airlines
American Airlines
JetBlue Airways