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KOS to HIA: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Huai An (Lianshui Airport)
1,880 mi
3,025 km · 1,633 nm
4h 9m
estimated nonstop flight time
+1h
time difference · heading northeast
See live KOS→HIA fares Phone-only fares on this route — call free
Flight time details
1,880 miles nonstop takes roughly 4h 9m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- HIA — Lianshui Airport · Huai An, China
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 HIA
- LYG · Lianyungang Airport56 mi away
- YNZ · Yancheng Airport67 mi away
- XUZ · Xuzhou Guanyin Airport92 mi away
- YTY · Yangzhou Taizhou Airport92 mi away
Frequently asked questions
How far is KOS from HIA?
The flight distance from Sihanoukville (KOS) to Huai An (HIA) is 1,880 miles (3,025 km, 1,633 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to HIA?
A nonstop flight takes about 4h 9m 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 Huai An?
Huai An is 1 hour ahead of Sihanoukville.
What is the cheapest way to fly from KOS to HIA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–HIA that never appear on search engines, with no booking fees.