Need help booking?
Unpublished phone-only deals available
PSM to KLU: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Klagenfurt (Klagenfurt Airport)
3,965 mi
6,382 km · 3,446 nm
8h 15m
estimated nonstop flight time
+6h
time difference · heading northeast
See live PSM→KLU fares Phone-only fares on this route — call free
Flight time details
3,965 miles nonstop takes roughly 8h 15m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- KLU — Klagenfurt Airport · Klagenfurt, Austria
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 KLU
- LJU · Ljubljana Jože Pučnik Airport29 mi away
- GRZ · Graz Airport57 mi away
- MBX · Maribor Airport65 mi away
- TRS · Trieste–Friuli Venezia Giulia Airport70 mi away
Frequently asked questions
How far is PSM from KLU?
The flight distance from Portsmouth (PSM) to Klagenfurt (KLU) is 3,965 miles (6,382 km, 3,446 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to KLU?
A nonstop flight takes about 8h 15m 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 Klagenfurt?
Klagenfurt is 6 hours ahead of Portsmouth.
What is the cheapest way to fly from PSM to KLU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–KLU that never appear on search engines, with no booking fees.