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SEA to KFS: distance & flight time
Seattle (Seattle Tacoma International Airport) → Kastamonu (Kastamonu Airport)
6,132 mi
9,868 km · 5,328 nm
12h 29m
estimated nonstop flight time
+10h
time difference · heading north
See live SEA→KFS fares Phone-only fares on this route — call free
Flight time details
6,132 miles nonstop takes roughly 12h 29m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- KFS — Kastamonu Airport · Kastamonu, Turkey
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 SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Near KFS
- NOP · Sinop Airport82 mi away
- ONQ · Zonguldak Airport89 mi away
- ESB · Esenboğa International Airport92 mi away
- MZH · Amasya Merzifon Airport96 mi away
Frequently asked questions
How far is SEA from KFS?
The flight distance from Seattle (SEA) to Kastamonu (KFS) is 6,132 miles (9,868 km, 5,328 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to KFS?
A nonstop flight takes about 12h 29m 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 Seattle and Kastamonu?
Kastamonu is 10 hours ahead of Seattle.
What is the cheapest way to fly from SEA to KFS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–KFS that never appear on search engines, with no booking fees.