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CMJ to BFI: distance & flight time
Cimei (Chi Mei Airport) → Seattle (Boeing Field King County International Airport)
6,231 mi
10,028 km · 5,415 nm
12h 41m
estimated nonstop flight time
-15h
time difference · heading northeast
See live CMJ→BFI fares Phone-only fares on this route — call free
Flight time details
6,231 miles nonstop takes roughly 12h 41m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- CMJ — Chi Mei Airport · Cimei, Taiwan
- 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 CMJ
- WOT · Wang-an Airport12 mi away
- MZG · Makung Airport28 mi away
- TNN · Tainan Airport53 mi away
- CYI · Chiayi Airport64 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 CMJ from BFI?
The flight distance from Cimei (CMJ) to Seattle (BFI) is 6,231 miles (10,028 km, 5,415 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CMJ to BFI?
A nonstop flight takes about 12h 41m 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 Cimei and Seattle?
Seattle is 15 hours behind Cimei.
What is the cheapest way to fly from CMJ to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CMJ–BFI that never appear on search engines, with no booking fees.