Distance between Seattle, WA (BFI) and Masset (ZMT)

Flight distance from Seattle to Masset (Seattle Boeing Field – Masset Airport) is 621 miles / 999 kilometers / 540 nautical miles. Estimated flight time is 1 hour 40 minutes.

Driving distance from Seattle (BFI) to Masset (ZMT) is 1197 miles / 1926 kilometers and travel time by car is about 28 hours 33 minutes.

Map of flight path and driving directions from Seattle to Masset.

Shortest flight path between Seattle Boeing Field (BFI) and Masset Airport (ZMT).

How far is Masset from Seattle?

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

Vincenty's formula (applied above)
• 621.034 miles
• 999.457 kilometers
• 539.664 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
• 619.968 miles
• 997.741 kilometers
• 538.737 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).

Airport information

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

B Masset Airport
City: Masset
IATA Code: ZMT
ICAO Code: CZMT
Coordinates: 54°1′39″N, 132°7′30″W

Time difference and current local times

There is no time difference between Seattle and Masset.

PST

PST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 115 kg (254 pounds).

Frequent Flyer Miles Calculator

Seattle (BFI) → Masset (ZMT).

Distance:
621
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
621

Round trip?