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KOS to SXI: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Siri Island (Sirri Island Airport)
3,369 mi
5,422 km · 2,928 nm
7h 4m
estimated nonstop flight time
-3.5h
time difference · heading northwest
See live KOS→SXI fares Phone-only fares on this route — call free
Flight time details
3,369 miles nonstop takes roughly 7h 4m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.5-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- SXI — Sirri Island Airport · Siri Island, Iran
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 SXI
- DXB · Dubai International Airport69 mi away
- AEU · Abu Musa Island Airport31 mi away
- BDH · Bandar Lengeh Airport47 mi away
- KIH · Kish International Airport55 mi away
Frequently asked questions
How far is KOS from SXI?
The flight distance from Sihanoukville (KOS) to Siri Island (SXI) is 3,369 miles (5,422 km, 2,928 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to SXI?
A nonstop flight takes about 7h 4m 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 Siri Island?
Siri Island is 3.5 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to SXI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–SXI that never appear on search engines, with no booking fees.