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UNN to BFI: distance & flight time
Ranong (Ranong Airport) → Seattle (Boeing Field King County International Airport)
7,752 mi
12,476 km · 6,736 nm
15h 40m
estimated nonstop flight time
-14h
time difference · heading northeast
See live UNN→BFI fares Phone-only fares on this route — call free
Flight time details
7,752 miles nonstop takes roughly 15h 40m 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
- UNN — Ranong Airport · Ranong, 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 UNN
- KAW · Kawthoung Airport19 mi away
- URT · Surat Thani Airport58 mi away
- CJM · Chumphon Airport83 mi away
- VBP · Bokpyinn Airport95 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 UNN from BFI?
The flight distance from Ranong (UNN) to Seattle (BFI) is 7,752 miles (12,476 km, 6,736 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UNN to BFI?
A nonstop flight takes about 15h 40m 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 Ranong and Seattle?
Seattle is 14 hours behind Ranong.
What is the cheapest way to fly from UNN to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UNN–BFI that never appear on search engines, with no booking fees.