# 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
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
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.

PST

EST

## 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?