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BOI to KOS: distance & flight time
Boise (Boise Air Terminal/Gowen Field) → Sihanoukville (Sihanoukville International Airport)
7,935 mi
12,771 km · 6,896 nm
16h 2m
estimated nonstop flight time
+13h
time difference · heading northwest
See live BOI→KOS fares Phone-only fares on this route — call free
Flight time details
7,935 miles nonstop takes roughly 16h 2m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- BOI — Boise Air Terminal/Gowen Field · Boise, United States
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
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 BOI
- MUO · Mountain Home Air Force Base40 mi away
- ONO · Ontario Municipal Airport50 mi away
- MYL · McCall Municipal Airport92 mi away
- SUN · Friedman Memorial Airport97 mi away
Near KOS
- PQC · Phu Quoc International Airport37 mi away
- PNH · Phnom Penh International Airport106 mi away
- VKG · Rach Gia Airport110 mi away
- KZC · Kampong Chhnang Airport132 mi away
Frequently asked questions
How far is BOI from KOS?
The flight distance from Boise (BOI) to Sihanoukville (KOS) is 7,935 miles (12,771 km, 6,896 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BOI to KOS?
A nonstop flight takes about 16h 2m 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 Boise and Sihanoukville?
Sihanoukville is 13 hours ahead of Boise.
What is the cheapest way to fly from BOI to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BOI–KOS that never appear on search engines, with no booking fees.