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SLP to SLU: distance & flight time
San Luis Potosi (Ponciano Arriaga International Airport) → Castries (George F. L. Charles Airport)
2,675 mi
4,305 km · 2,325 nm
5h 43m
estimated nonstop flight time
+2h
time difference · heading east
See live SLP→SLU fares Phone-only fares on this route — call free
Flight time details
2,675 miles nonstop takes roughly 5h 43m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- SLP — Ponciano Arriaga International Airport · San Luis Potosi, Mexico
- 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 SLP
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 SLP from SLU?
The flight distance from San Luis Potosi (SLP) to Castries (SLU) is 2,675 miles (4,305 km, 2,325 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SLP to SLU?
A nonstop flight takes about 5h 43m 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 San Luis Potosi and Castries?
Castries is 2 hours ahead of San Luis Potosi.
What is the cheapest way to fly from SLP to SLU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SLP–SLU that never appear on search engines, with no booking fees.