Need help booking?
Unpublished phone-only deals available
REP to UBP: distance & flight time
Siem-reap (Siem Reap International Airport) → Ubon Ratchathani (Ubon Ratchathani Airport)
146 mi
234 km · 126 nm
51m
estimated nonstop flight time
Same time
time difference · heading northeast
See live REP→UBP fares Phone-only fares on this route — call free
Flight time details
146 miles nonstop takes roughly 51m gate to gate, flying northeast. 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
- REP — Siem Reap International Airport · Siem-reap, Cambodia
- UBP — Ubon Ratchathani Airport · Ubon Ratchathani, Thailand
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 REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Near UBP
- PKZ · Pakse International Airport61 mi away
- ZVK · Savannakhet Airport90 mi away
- ROI · Roi Et Airport94 mi away
- PXR · Surin Airport95 mi away
Frequently asked questions
How far is REP from UBP?
The flight distance from Siem-reap (REP) to Ubon Ratchathani (UBP) is 146 miles (234 km, 126 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from REP to UBP?
A nonstop flight takes about 51m 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 REP to UBP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on REP–UBP that never appear on search engines, with no booking fees.