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HLH to KOS: distance & flight time
Ulanhot (Ulanhot Airport) → Sihanoukville (Sihanoukville International Airport)
2,688 mi
4,325 km · 2,335 nm
5h 44m
estimated nonstop flight time
-1h
time difference · heading southwest
See live HLH→KOS fares Phone-only fares on this route — call free
Flight time details
2,688 miles nonstop takes roughly 5h 44m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- HLH — Ulanhot Airport · Ulanhot, China
- 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 HLH
- DBC · Baicheng Chang'an Airport68 mi away
- NDG · Qiqihar Sanjiazi Airport116 mi away
- NZL · Chengjisihan Airport121 mi away
- YIE · Arxan Yi'ershi Airport126 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 HLH from KOS?
The flight distance from Ulanhot (HLH) to Sihanoukville (KOS) is 2,688 miles (4,325 km, 2,335 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLH to KOS?
A nonstop flight takes about 5h 44m 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 Ulanhot and Sihanoukville?
Sihanoukville is 1 hour behind Ulanhot.
What is the cheapest way to fly from HLH to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLH–KOS that never appear on search engines, with no booking fees.