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PSM to KTM: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Kathmandu (Tribhuvan International Airport)
7,318 mi
11,777 km · 6,359 nm
14h 49m
estimated nonstop flight time
+9.8h
time difference · heading north
See live PSM→KTM fares Phone-only fares on this route — call free
Flight time details
7,318 miles nonstop takes roughly 14h 49m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9.8-hour time gain when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- KTM — Tribhuvan International Airport · Kathmandu, Nepal
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 KTM
- SIF · Simara Airport44 mi away
- RHP · Ramechhap Airport48 mi away
- BHR · Bharatpur Airport57 mi away
- MEY · Meghauli Airport70 mi away
Frequently asked questions
How far is PSM from KTM?
The flight distance from Portsmouth (PSM) to Kathmandu (KTM) is 7,318 miles (11,777 km, 6,359 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to KTM?
A nonstop flight takes about 14h 49m 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 Kathmandu?
Kathmandu is 9.8 hours ahead of Portsmouth.
What is the cheapest way to fly from PSM to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–KTM that never appear on search engines, with no booking fees.