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CEI to KLS: distance & flight time
Chiang Rai (Chiang Rai International Airport) → Kelso (Southwest Washington Regional Airport)
7,146 mi
11,501 km · 6,210 nm
14h 29m
estimated nonstop flight time
-14h
time difference · heading northeast
See live CEI→KLS fares Phone-only fares on this route — call free
Flight time details
7,146 miles nonstop takes roughly 14h 29m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- CEI — Chiang Rai International Airport · Chiang Rai, Thailand
- 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 CEI
- THL · Tachileik Airport37 mi away
- HOE · Ban Huoeisay Airport42 mi away
- MOG · Mong Hsat Airport56 mi away
- KET · Kengtung Airport95 mi away
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 CEI from KLS?
The flight distance from Chiang Rai (CEI) to Kelso (KLS) is 7,146 miles (11,501 km, 6,210 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CEI to KLS?
A nonstop flight takes about 14h 29m 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 Chiang Rai and Kelso?
Kelso is 14 hours behind Chiang Rai.
What is the cheapest way to fly from CEI to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CEI–KLS that never appear on search engines, with no booking fees.