Air Miles Calculator

Distance between Baltimore, MD (BWI) and Seattle, WA (SEA)

Distance from Baltimore–Washington International Airport to Seattle–Tacoma International Airport is 2335 miles / 3757 kilometers / 2029 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 2334.760 miles
  • 3757.432 kilometers
  • 2028.851 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
  • 2328.988 miles
  • 3748.142 kilometers
  • 2023.835 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 Baltimore–Washington International Airport (BWI) to Seattle–Tacoma International Airport (SEA) is 4 hours 55 minutes.

Time difference and current local times

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

Time Difference

Baltimore
Seattle

Baltimore, MD

 EST

Seattle, WA

 PST

Airport information


A Baltimore–Washington International Airport
City: Baltimore, MD
Country: United States Flag of United States
IATA Code: BWI
ICAO Code: KBWI
Coordinates: 39°10′31″N, 76°40′5″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 Baltimore to Seattle.

Frequent Flyer Miles Calculator

Baltimore (BWI) → Seattle (SEA).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
2335
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
2335

Round trip?