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MDT to BFI: distance & flight time
Harrisburg (Harrisburg International Airport) → Seattle (Boeing Field King County International Airport)
2,290 mi
3,685 km · 1,990 nm
4h 57m
estimated nonstop flight time
-3h
time difference · heading northwest
See live MDT→BFI fares Phone-only fares on this route — call free
Flight time details
2,290 miles nonstop takes roughly 4h 57m 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
- MDT — Harrisburg International Airport · Harrisburg, 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 MDT
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 MDT from BFI?
The flight distance from Harrisburg (MDT) to Seattle (BFI) is 2,290 miles (3,685 km, 1,990 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MDT to BFI?
A nonstop flight takes about 4h 57m 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 Harrisburg and Seattle?
Seattle is 3 hours behind Harrisburg.
What is the cheapest way to fly from MDT to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MDT–BFI that never appear on search engines, with no booking fees.