Need help booking?

Unpublished phone-only deals available

XSI to KOS: distance & flight time

South Indian Lake (South Indian Lake Airport) → Sihanoukville (Sihanoukville International Airport)

7,607 mi
12,242 km · 6,610 nm
15h 23m
estimated nonstop flight time
+12h
time difference · heading northwest
See live XSIKOS fares Phone-only fares on this route — call free

Flight time details

7,607 miles nonstop takes roughly 15h 23m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.

The two airports

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.

Frequently asked questions

How far is XSI from KOS?

The flight distance from South Indian Lake (XSI) to Sihanoukville (KOS) is 7,607 miles (12,242 km, 6,610 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from XSI to KOS?

A nonstop flight takes about 15h 23m 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 South Indian Lake and Sihanoukville?

Sihanoukville is 12 hours ahead of South Indian Lake.

What is the cheapest way to fly from XSI to KOS?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on XSI–KOS that never appear on search engines, with no booking fees.
Keep exploring:KOS to XSI Airports near XSI Airports near KOS Time difference XSIKOS Distance calculator