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UTH to REP: distance & flight time
Udon Thani (Udon Thani Airport) → Siem-reap (Siem Reap International Airport)
283 mi
456 km · 246 nm
1h 13m
estimated nonstop flight time
Same time
time difference · heading south
See live UTH→REP fares Phone-only fares on this route — call free
Flight time details
283 miles nonstop takes roughly 1h 13m 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
- REP — Siem Reap International Airport · Siem-reap, 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 REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Frequently asked questions
How far is UTH from REP?
The flight distance from Udon Thani (UTH) to Siem-reap (REP) is 283 miles (456 km, 246 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UTH to REP?
A nonstop flight takes about 1h 13m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from UTH to REP?
Nonstop service on UTH–REP depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 13m nonstop estimate.
What is the cheapest way to fly from UTH to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UTH–REP that never appear on search engines, with no booking fees.
Why are some UTH to REP fares phone-only?
Consolidator contracts let us sell certain UTH–REP tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.