Air Miles Calculator

Distance between Seattle, WA (BFI) and Manchester, NH (MHT)

Flight distance from Seattle to Manchester (Seattle Boeing Field – Manchester–Boston Regional Airport) is 2457 miles / 3955 kilometers / 2135 nautical miles. Estimated flight time is 5 hours 9 minutes.

Driving distance from Seattle (BFI) to Manchester (MHT) is 3017 miles / 4855 kilometers and travel time by car is about 51 hours 53 minutes.

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

Shortest flight path between Seattle Boeing Field (BFI) and Manchester–Boston Regional Airport (MHT).

How far is Manchester from Seattle?

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

Vincenty's formula (applied above)
  • 2457.409 miles
  • 3954.816 kilometers
  • 2135.430 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
  • 2450.664 miles
  • 3943.962 kilometers
  • 2129.569 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 Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W

B Manchester–Boston Regional Airport
City: Manchester, NH
Country: United States Flag of United States
IATA Code: MHT
ICAO Code: KMHT
Coordinates: 42°55′57″N, 71°26′8″W

Time difference and current local times

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

Time Difference

Seattle, WA

 PDT

Manchester, NH

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 270 kg (596 pounds).

Frequent Flyer Miles Calculator

Seattle (BFI) → Manchester (MHT).

Distance:
2457
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
2457

Round trip?