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HSK to SLU: distance & flight time
Huesca (Huesca/Pirineos Airport) → Castries (George F. L. Charles Airport)
4,077 mi
6,561 km · 3,542 nm
8h 28m
estimated nonstop flight time
-6h
time difference · heading west
See live HSK→SLU fares Phone-only fares on this route — call free
Flight time details
4,077 miles nonstop takes roughly 8h 28m 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
- HSK — Huesca/Pirineos Airport · Huesca, Spain
- 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 HSK
- ZAZ · Zaragoza Air Base47 mi away
- ILD · Lleida-Alguaire Airport50 mi away
- LDE · Tarbes-Lourdes-Pyrénées Airport78 mi away
- PNA · Pamplona Airport83 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 HSK from SLU?
The flight distance from Huesca (HSK) to Castries (SLU) is 4,077 miles (6,561 km, 3,542 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HSK to SLU?
A nonstop flight takes about 8h 28m 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 Huesca and Castries?
Castries is 6 hours behind Huesca.
What is the cheapest way to fly from HSK to SLU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HSK–SLU that never appear on search engines, with no booking fees.