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TNN to KLS: distance & flight time
Tainan (Tainan Airport) → Kelso (Southwest Washington Regional Airport)
6,249 mi
10,057 km · 5,430 nm
12h 43m
estimated nonstop flight time
-15h
time difference · heading northeast
See live TNN→KLS fares Phone-only fares on this route — call free
Flight time details
6,249 miles nonstop takes roughly 12h 43m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- TNN — Tainan Airport · Tainan, Taiwan
- 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 TNN
- PIF · Pingtung North Airport25 mi away
- KHH · Kaohsiung International Airport27 mi away
- CYI · Chiayi Airport37 mi away
- WOT · Wang-an Airport53 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 TNN from KLS?
The flight distance from Tainan (TNN) to Kelso (KLS) is 6,249 miles (10,057 km, 5,430 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TNN to KLS?
A nonstop flight takes about 12h 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 Tainan and Kelso?
Kelso is 15 hours behind Tainan.
What is the cheapest way to fly from TNN to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TNN–KLS that never appear on search engines, with no booking fees.