Air Miles Calculator

Distance between Seattle, WA (BFI) and Key West, FL (EYW)

Distance from Seattle to Key West (Boeing Field – Key West International Airport) is 2721 miles / 4379 kilometers / 2365 nautical miles.

How far is Key West from Seattle?

There are several ways to calculate distances between Seattle and Key West. Here are two common methods:

Vincenty's formula (applied above)
  • 2721.230 miles
  • 4379.395 kilometers
  • 2364.684 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
  • 2719.094 miles
  • 4375.957 kilometers
  • 2362.828 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 Boeing Field (BFI) to Key West International Airport (EYW) is 5 hours 39 minutes.

Time difference and current local times

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

Time Difference

Seattle
Key West

Seattle, WA

 PDT

Key West, FL

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 306 kg (674 pounds).

Airport information


A 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

B Key West International Airport
City: Key West, FL
Country: United States Flag of United States
IATA Code: EYW
ICAO Code: KEYW
Coordinates: 24°33′21″N, 81°45′34″W

Seattle to Key West flight path

Shortest flight path between Boeing Field (BFI) and Key West International Airport (EYW).

Frequent Flyer Miles Calculator

Seattle (BFI) → Key West (EYW).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
2721
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
2721

Round trip?