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MHT to BFI: distance & flight time
Manchester NH (Manchester-Boston Regional Airport) → Seattle (Boeing Field King County International Airport)
2,451 mi
3,944 km · 2,130 nm
5h 16m
estimated nonstop flight time
-3h
time difference · heading northwest
See live MHT→BFI fares Phone-only fares on this route — call free
Flight time details
2,451 miles nonstop takes roughly 5h 16m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- MHT — Manchester-Boston Regional Airport · Manchester NH, United States
- BFI — Boeing Field King County International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near MHT
- BOS · General Edward Lawrence Logan International Airport45 mi away
- ASH · Boire Field11 mi away
- CON · Concord Municipal Airport19 mi away
- LWM · Lawrence Municipal Airport22 mi away
Near BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Frequently asked questions
How far is MHT from BFI?
The flight distance from Manchester NH (MHT) to Seattle (BFI) is 2,451 miles (3,944 km, 2,130 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MHT to BFI?
A nonstop flight takes about 5h 16m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Manchester NH and Seattle?
Seattle is 3 hours behind Manchester NH.
What is the cheapest way to fly from MHT to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MHT–BFI that never appear on search engines, with no booking fees.