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KMG to BFI: distance & flight time
Kunming (Kunming Changshui International Airport) → Seattle (Boeing Field King County International Airport)
6,685 mi
10,759 km · 5,809 nm
13h 35m
estimated nonstop flight time
-15h
time difference · heading northeast
See live KMG→BFI fares Phone-only fares on this route — call free
Flight time details
6,685 miles nonstop takes roughly 13h 35m 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
- KMG — Kunming Changshui International Airport · Kunming, China
- 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 KMG
- YUA · Yuanmou Air Base79 mi away
- PZI · Bao'anying Airport122 mi away
- ACX · Xingyi Airport127 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 KMG from BFI?
The flight distance from Kunming (KMG) to Seattle (BFI) is 6,685 miles (10,759 km, 5,809 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KMG to BFI?
A nonstop flight takes about 13h 35m 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 Kunming and Seattle?
Seattle is 15 hours behind Kunming.
What is the cheapest way to fly from KMG to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KMG–BFI that never appear on search engines, with no booking fees.