Air Miles Calculator logo

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

Flight distance from Seattle to Boston (Seattle Boeing Field – Logan International Airport) is 2494 miles / 4014 kilometers / 2167 nautical miles. Estimated flight time is 5 hours 13 minutes.

Driving distance from Seattle (BFI) to Boston (BOS) is 2995 miles / 4820 kilometers and travel time by car is about 54 hours 37 minutes.

Seattle – Boston

Distance arrow
2494
Miles
Distance arrow
4014
Kilometers
Distance arrow
2167
Nautical miles

How far is Boston from Seattle?

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

Vincenty's formula (applied above)
  • 2494.268 miles
  • 4014.135 kilometers
  • 2167.460 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
  • 2487.498 miles
  • 4003.240 kilometers
  • 2161.577 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 Seattle Boeing Field to Logan International Airport is 5 hours 13 minutes.

Time difference

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

Carbon dioxide emissions

On average flying from Seattle to Boston generates about 275 kg of CO2 per passenger, 275 kilograms is equal to 605 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 Boeing Field (BFI) and Logan International Airport (BOS).

Airport information

Origin Seattle Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″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