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KOP to PSM: distance & flight time
Nakhon Phanom (Nakhon Phanom Airport) → Portsmouth (Portsmouth International at Pease Airport)
8,249 mi
13,276 km · 7,169 nm
16h 39m
estimated nonstop flight time
-11h
time difference · heading north
See live KOP→PSM fares Phone-only fares on this route — call free
Flight time details
8,249 miles nonstop takes roughly 16h 39m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time set-back when reading arrival times on your ticket.
The two airports
- KOP — Nakhon Phanom Airport · Nakhon Phanom, Thailand
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
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 KOP
- SNO · Sakon Nakhon Airport37 mi away
- ZVK · Savannakhet Airport58 mi away
- ROI · Roi Et Airport105 mi away
- VII · Vinh Airport115 mi away
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
Frequently asked questions
How far is KOP from PSM?
The flight distance from Nakhon Phanom (KOP) to Portsmouth (PSM) is 8,249 miles (13,276 km, 7,169 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOP to PSM?
A nonstop flight takes about 16h 39m 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 Nakhon Phanom and Portsmouth?
Portsmouth is 11 hours behind Nakhon Phanom.
What is the cheapest way to fly from KOP to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOP–PSM that never appear on search engines, with no booking fees.