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KLS to CAT: distance & flight time
Kelso (Southwest Washington Regional Airport) → Cascais (Cascais Airport)
5,280 mi
8,497 km · 4,588 nm
10h 49m
estimated nonstop flight time
+8h
time difference · heading northeast
See live KLS→CAT fares Phone-only fares on this route — call free
Flight time details
5,280 miles nonstop takes roughly 10h 49m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- CAT — Cascais Airport · Cascais, Portugal
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 CAT
- LIS · Humberto Delgado Airport (Lisbon Portela Airport)12 mi away
- AVR · Alverca Air Base21 mi away
- QLR · Monte Real Air Base80 mi away
- BYJ · Beja Airport / Airbase89 mi away
Frequently asked questions
How far is KLS from CAT?
The flight distance from Kelso (KLS) to Cascais (CAT) is 5,280 miles (8,497 km, 4,588 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to CAT?
A nonstop flight takes about 10h 49m 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 Cascais?
Cascais is 8 hours ahead of Kelso.
What is the cheapest way to fly from KLS to CAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–CAT that never appear on search engines, with no booking fees.