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UTH to KOS: distance & flight time
Udon Thani (Udon Thani Airport) → Sihanoukville (Sihanoukville International Airport)
474 mi
762 km · 412 nm
1h 30m
estimated nonstop flight time
Same time
time difference · heading south
See live UTH→KOS fares Phone-only fares on this route — call free
Flight time details
474 miles nonstop takes roughly 1h 30m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- UTH — Udon Thani Airport · Udon Thani, Thailand
- 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 UTH
- VTE · Wattay International Airport44 mi away
- KKC · Khon Kaen Airport64 mi away
- LOE · Loei Airport70 mi away
- SNO · Sakon Nakhon Airport89 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 UTH from KOS?
The flight distance from Udon Thani (UTH) to Sihanoukville (KOS) is 474 miles (762 km, 412 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UTH to KOS?
A nonstop flight takes about 1h 30m 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 cheapest way to fly from UTH to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UTH–KOS that never appear on search engines, with no booking fees.