Need help booking?
Unpublished phone-only deals available
SLP to UNI: distance & flight time
San Luis Potosi (Ponciano Arriaga International Airport) → Union Island (Union Island International Airport)
2,681 mi
4,314 km · 2,329 nm
5h 43m
estimated nonstop flight time
+2h
time difference · heading east
See live SLP→UNI fares Phone-only fares on this route — call free
Flight time details
2,681 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
- UNI — Union Island International Airport · Union Island, Saint Vincent and the Grenadines
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 UNI
- CIW · Canouan Airport8 mi away
- MQS · Mustique Airport25 mi away
- BQU · J F Mitchell Airport29 mi away
- SVD · Argyle International Airport42 mi away
Frequently asked questions
How far is SLP from UNI?
The flight distance from San Luis Potosi (SLP) to Union Island (UNI) is 2,681 miles (4,314 km, 2,329 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SLP to UNI?
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 Union Island?
Union Island is 2 hours ahead of San Luis Potosi.
What is the cheapest way to fly from SLP to UNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SLP–UNI that never appear on search engines, with no booking fees.