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KDT to PSM: distance & flight time
Nakhon Pathom (Kamphaeng Saen Airport) → Portsmouth (Portsmouth International at Pease Airport)
8,443 mi
13,587 km · 7,337 nm
17h 1m
estimated nonstop flight time
-11h
time difference · heading north
See live KDT→PSM fares Phone-only fares on this route — call free
Flight time details
8,443 miles nonstop takes roughly 17h 1m 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
- KDT — Kamphaeng Saen Airport · Nakhon Pathom, 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 KDT
- DMK · Don Mueang International Airport48 mi away
- BKK · Suvarnabhumi Airport63 mi away
- TKH · Takhli Airport85 mi away
- HHQ · Hua Hin Airport101 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 KDT from PSM?
The flight distance from Nakhon Pathom (KDT) to Portsmouth (PSM) is 8,443 miles (13,587 km, 7,337 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KDT to PSM?
A nonstop flight takes about 17h 1m 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 Pathom and Portsmouth?
Portsmouth is 11 hours behind Nakhon Pathom.
What is the cheapest way to fly from KDT to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KDT–PSM that never appear on search engines, with no booking fees.