Air Miles Calculator

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

Distance from Seattle–Tacoma International Airport to Logan International Airport is 2496 miles / 4016 kilometers / 2169 nautical miles.

Calculations with different 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).

Flight duration

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

Time difference and current local times

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

Time Difference

Seattle
Boston

Seattle, WA

 PST

Boston, MA

 EST

Airport information


A 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

B 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

Map

Flight map from Seattle to Boston.

Frequent Flyer Miles Calculator

Seattle (SEA) → Boston (BOS).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
2496
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
2496

Round trip?