Need help booking?
Unpublished phone-only deals available
BTV to KLU: distance & flight time
Burlington (Burlington International Airport) → Klagenfurt (Klagenfurt Airport)
4,003 mi
6,443 km · 3,479 nm
8h 19m
estimated nonstop flight time
+6h
time difference · heading northeast
See live BTV→KLU fares Phone-only fares on this route — call free
Flight time details
4,003 miles nonstop takes roughly 8h 19m 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
- BTV — Burlington International Airport · Burlington, 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 BTV
- PBG · Plattsburgh International Airport20 mi away
- MVL · Morrisville Stowe State Airport27 mi away
- MPV · Edward F Knapp State Airport35 mi away
- LKP · Lake Placid Airport42 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 BTV from KLU?
The flight distance from Burlington (BTV) to Klagenfurt (KLU) is 4,003 miles (6,443 km, 3,479 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BTV to KLU?
A nonstop flight takes about 8h 19m 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 Burlington and Klagenfurt?
Klagenfurt is 6 hours ahead of Burlington.
What is the cheapest way to fly from BTV to KLU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BTV–KLU that never appear on search engines, with no booking fees.