Need help booking?
Unpublished phone-only deals available
KLS to SJU: distance & flight time
Kelso (Southwest Washington Regional Airport) → San Juan (Luis Munoz Marin International Airport)
3,734 mi
6,010 km · 3,245 nm
7h 47m
estimated nonstop flight time
+3h
time difference · heading east
See live KLS→SJU fares Phone-only fares on this route — call free
Flight time details
3,734 miles nonstop takes roughly 7h 47m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- SJU — Luis Munoz Marin International Airport · San Juan, Puerto Rico
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 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
Near SJU
- SIG · Fernando Luis Ribas Dominicci Airport6 mi away
- FAJ · Diego Jimenez Torres Airport24 mi away
- NRR · José Aponte de la Torre Airport27 mi away
- VQS · Vieques Airport44 mi away
Frequently asked questions
How far is KLS from SJU?
The flight distance from Kelso (KLS) to San Juan (SJU) is 3,734 miles (6,010 km, 3,245 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to SJU?
A nonstop flight takes about 7h 47m 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 Kelso and San Juan?
San Juan is 3 hours ahead of Kelso.
What is the cheapest way to fly from KLS to SJU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–SJU that never appear on search engines, with no booking fees.