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HFD to KLU: distance & flight time
Hartford (Hartford Brainard Airport) → Klagenfurt (Klagenfurt Airport)
4,095 mi
6,591 km · 3,559 nm
8h 30m
estimated nonstop flight time
+6h
time difference · heading northeast
See live HFD→KLU fares Phone-only fares on this route — call free
Flight time details
4,095 miles nonstop takes roughly 8h 30m 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
- HFD — Hartford Brainard Airport · Hartford, 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 HFD
- BDL · Bradley International Airport14 mi away
- BAF · Westfield-Barnes Regional Airport29 mi away
- OXC · Waterbury Oxford Airport31 mi away
- CEF · Westover ARB/Metropolitan Airport32 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 HFD from KLU?
The flight distance from Hartford (HFD) to Klagenfurt (KLU) is 4,095 miles (6,591 km, 3,559 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HFD to KLU?
A nonstop flight takes about 8h 30m 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 Hartford and Klagenfurt?
Klagenfurt is 6 hours ahead of Hartford.
What is the cheapest way to fly from HFD to KLU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HFD–KLU that never appear on search engines, with no booking fees.