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KOS to IAG: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Niagara Falls (Niagara Falls International Airport)
8,724 mi
14,040 km · 7,581 nm
17h 34m
estimated nonstop flight time
-11h
time difference · heading north
See live KOS→IAG fares Phone-only fares on this route — call free
Flight time details
8,724 miles nonstop takes roughly 17h 34m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- IAG — Niagara Falls International Airport · Niagara Falls, 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 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
Near IAG
- YYZ · Lester B. Pearson International Airport52 mi away
- YCM · Niagara District Airport13 mi away
- BUF · Buffalo Niagara International Airport16 mi away
- DU9 · Dunnville Airport37 mi away
Frequently asked questions
How far is KOS from IAG?
The flight distance from Sihanoukville (KOS) to Niagara Falls (IAG) is 8,724 miles (14,040 km, 7,581 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to IAG?
A nonstop flight takes about 17h 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 Sihanoukville and Niagara Falls?
Niagara Falls is 11 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to IAG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–IAG that never appear on search engines, with no booking fees.