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PSM to RBE: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Ratanakiri (Ratanakiri Airport)
8,509 mi
13,694 km · 7,394 nm
17h 9m
estimated nonstop flight time
+11h
time difference · heading north
See live PSM→RBE fares Phone-only fares on this route — call free
Flight time details
8,509 miles nonstop takes roughly 17h 9m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time gain when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- 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 PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 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 PSM from RBE?
The flight distance from Portsmouth (PSM) to Ratanakiri (RBE) is 8,509 miles (13,694 km, 7,394 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to RBE?
A nonstop flight takes about 17h 9m 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 Portsmouth and Ratanakiri?
Ratanakiri is 11 hours ahead of Portsmouth.
What is the cheapest way to fly from PSM to RBE?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–RBE that never appear on search engines, with no booking fees.