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USM to RBE: distance & flight time
Ko Samui (Samui Airport) → Ratanakiri (Ratanakiri Airport)
550 mi
886 km · 478 nm
1h 40m
estimated nonstop flight time
Same time
time difference · heading northeast
See live USM→RBE fares Phone-only fares on this route — call free
Flight time details
550 miles nonstop takes roughly 1h 40m 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
- USM — Samui Airport · Ko Samui, Thailand
- RBE — Ratanakiri Airport · Ratanakiri, 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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Near RBE
- TNX · Stung Treng Airport67 mi away
- PXU · Pleiku Airport72 mi away
- AOU · Attopeu Airport76 mi away
- BMV · Buon Ma Thuot Airport106 mi away
Frequently asked questions
How far is USM from RBE?
The flight distance from Ko Samui (USM) to Ratanakiri (RBE) is 550 miles (886 km, 478 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to RBE?
A nonstop flight takes about 1h 40m 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 USM to RBE?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–RBE that never appear on search engines, with no booking fees.