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KKS to BFI: distance & flight time
Kashan (Kashan Airport) → Seattle (Boeing Field King County International Airport)
6,798 mi
10,940 km · 5,907 nm
13h 48m
estimated nonstop flight time
-10.5h
time difference · heading north
See live KKS→BFI fares Phone-only fares on this route — call free
Flight time details
6,798 miles nonstop takes roughly 13h 48m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10.5-hour time set-back when reading arrival times on your ticket.
The two airports
- KKS — Kashan Airport · Kashan, Iran
- 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 KKS
- IFH · Hesa Airport67 mi away
- IFN · Esfahan Shahid Beheshti International Airport81 mi away
- AJK · Arak Airport100 mi away
- IKA · Imam Khomeini International Airport108 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 KKS from BFI?
The flight distance from Kashan (KKS) to Seattle (BFI) is 6,798 miles (10,940 km, 5,907 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KKS to BFI?
A nonstop flight takes about 13h 48m 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 Kashan and Seattle?
Seattle is 10.5 hours behind Kashan.
What is the cheapest way to fly from KKS to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KKS–BFI that never appear on search engines, with no booking fees.