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PSM to PNH: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Phnom-penh (Phnom Penh International Airport)
8,653 mi
13,925 km · 7,519 nm
17h 26m
estimated nonstop flight time
+11h
time difference · heading north
See live PSM→PNH fares Phone-only fares on this route — call free
Flight time details
8,653 miles nonstop takes roughly 17h 26m 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
- PNH — Phnom Penh International Airport · Phnom-penh, 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 PNH
- KZC · Kampong Chhnang Airport52 mi away
- KTI · Kratie Airport105 mi away
- KOS · Sihanoukville International Airport106 mi away
- PQC · Phu Quoc International Airport111 mi away
Frequently asked questions
How far is PSM from PNH?
The flight distance from Portsmouth (PSM) to Phnom-penh (PNH) is 8,653 miles (13,925 km, 7,519 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to PNH?
A nonstop flight takes about 17h 26m 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 Phnom-penh?
Phnom-penh is 11 hours ahead of Portsmouth.
What is the cheapest way to fly from PSM to PNH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–PNH that never appear on search engines, with no booking fees.