Air Miles Calculator

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

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

Time difference and current local times

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

Time Difference

Boston
Seattle

Boston, MA

 EST

Seattle, WA

 PST

Airport information


A 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

B 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

Map

Flight map from Boston to Seattle.

Frequent Flyer Miles Calculator

Boston (BOS) → Seattle (SEA).

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?