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SLP to KLS: distance & flight time
San Luis Potosi (Ponciano Arriaga International Airport) → Kelso (Southwest Washington Regional Airport)
2,058 mi
3,311 km · 1,788 nm
4h 30m
estimated nonstop flight time
-1h
time difference · heading northwest
See live SLP→KLS fares Phone-only fares on this route — call free
Flight time details
2,058 miles nonstop takes roughly 4h 30m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- SLP — Ponciano Arriaga International Airport · San Luis Potosi, Mexico
- KLS — Southwest Washington Regional Airport · Kelso, United States
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 KLS
- PDX · Portland International Airport39 mi away
- CLS · Chehalis Centralia Airport39 mi away
- HIO · Portland Hillsboro Airport40 mi away
- TTD · Portland Troutdale Airport46 mi away
Frequently asked questions
How far is SLP from KLS?
The flight distance from San Luis Potosi (SLP) to Kelso (KLS) is 2,058 miles (3,311 km, 1,788 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SLP to KLS?
A nonstop flight takes about 4h 30m 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 Kelso?
Kelso is 1 hour behind San Luis Potosi.
What is the cheapest way to fly from SLP to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SLP–KLS that never appear on search engines, with no booking fees.