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CNX to BFI: distance & flight time
Chiang Mai (Chiang Mai International Airport) → Seattle (Boeing Field King County International Airport)
7,191 mi
11,573 km · 6,249 nm
14h 34m
estimated nonstop flight time
-14h
time difference · heading northeast
See live CNX→BFI fares Phone-only fares on this route — call free
Flight time details
7,191 miles nonstop takes roughly 14h 34m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- CNX — Chiang Mai International Airport · Chiang Mai, Thailand
- 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 CNX
- LPT · Lampang Airport49 mi away
- PYY · Mae Hong Son Airport54 mi away
- HGN · Mae Hong Son Airport74 mi away
- PRH · Phrae Airport90 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 CNX from BFI?
The flight distance from Chiang Mai (CNX) to Seattle (BFI) is 7,191 miles (11,573 km, 6,249 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CNX to BFI?
A nonstop flight takes about 14h 34m 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 Chiang Mai and Seattle?
Seattle is 14 hours behind Chiang Mai.
What is the cheapest way to fly from CNX to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CNX–BFI that never appear on search engines, with no booking fees.