Need help booking?
Unpublished phone-only deals available
SLU to KLU: distance & flight time
Castries (George F. L. Charles Airport) → Klagenfurt (Klagenfurt Airport)
4,825 mi
7,765 km · 4,193 nm
9h 56m
estimated nonstop flight time
+6h
time difference · heading northeast
See live SLU→KLU fares Phone-only fares on this route — call free
Flight time details
4,825 miles nonstop takes roughly 9h 56m 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
- SLU — George F. L. Charles Airport · Castries, Saint Lucia
- 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 SLU
- UVF · Hewanorra International Airport20 mi away
- FDF · Martinique Aimé Césaire International Airport39 mi away
- SVD · Argyle International Airport61 mi away
- BQU · J F Mitchell Airport74 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 SLU from KLU?
The flight distance from Castries (SLU) to Klagenfurt (KLU) is 4,825 miles (7,765 km, 4,193 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SLU to KLU?
A nonstop flight takes about 9h 56m 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 Castries and Klagenfurt?
Klagenfurt is 6 hours ahead of Castries.
What is the cheapest way to fly from SLU to KLU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SLU–KLU that never appear on search engines, with no booking fees.