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HIO to KLU: distance & flight time
Hillsboro (Portland Hillsboro Airport) → Klagenfurt (Klagenfurt Airport)
5,560 mi
8,947 km · 4,831 nm
11h 22m
estimated nonstop flight time
+9h
time difference · heading northeast
See live HIO→KLU fares Phone-only fares on this route — call free
Flight time details
5,560 miles nonstop takes roughly 11h 22m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- HIO — Portland Hillsboro Airport · Hillsboro, 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 HIO
- PDX · Portland International Airport17 mi away
- TTD · Portland Troutdale Airport27 mi away
- KLS · Southwest Washington Regional Airport40 mi away
- OTK · Tillamook Airport43 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 HIO from KLU?
The flight distance from Hillsboro (HIO) to Klagenfurt (KLU) is 5,560 miles (8,947 km, 4,831 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HIO to KLU?
A nonstop flight takes about 11h 22m 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 Hillsboro and Klagenfurt?
Klagenfurt is 9 hours ahead of Hillsboro.
What is the cheapest way to fly from HIO to KLU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HIO–KLU that never appear on search engines, with no booking fees.