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FLF to SLU: distance & flight time
Flensburg (Flensburg-Schäferhaus Airport) → Castries (George F. L. Charles Airport)
4,650 mi
7,484 km · 4,041 nm
9h 35m
estimated nonstop flight time
-6h
time difference · heading west
See live FLF→SLU fares Phone-only fares on this route — call free
Flight time details
4,650 miles nonstop takes roughly 9h 35m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- FLF — Flensburg-Schäferhaus Airport · Flensburg, Germany
- SLU — George F. L. Charles Airport · Castries, Saint Lucia
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 FLF
- SGD · Sønderborg Airport21 mi away
- WBG · Schleswig Air Base22 mi away
- SKS · Skrydstrup Air Base31 mi away
- KEL · Kiel-Holtenau Airport41 mi away
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
Frequently asked questions
How far is FLF from SLU?
The flight distance from Flensburg (FLF) to Castries (SLU) is 4,650 miles (7,484 km, 4,041 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FLF to SLU?
A nonstop flight takes about 9h 35m 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 Flensburg and Castries?
Castries is 6 hours behind Flensburg.
What is the cheapest way to fly from FLF to SLU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FLF–SLU that never appear on search engines, with no booking fees.