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MHT to SEA: distance & flight time
Manchester NH (Manchester-Boston Regional Airport) → Seattle (Seattle Tacoma International Airport)
2,452 mi
3,946 km · 2,131 nm
5h 16m
estimated nonstop flight time
-3h
time difference · heading northwest
See live MHT→SEA fares Phone-only fares on this route — call free
Flight time details
2,452 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
- SEA — Seattle Tacoma 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 SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is MHT from SEA?
The flight distance from Manchester NH (MHT) to Seattle (SEA) is 2,452 miles (3,946 km, 2,131 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MHT to SEA?
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 SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MHT–SEA that never appear on search engines, with no booking fees.