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KLS to UTP: distance & flight time
Kelso (Southwest Washington Regional Airport) → Pattaya (U-Tapao International Airport)
7,546 mi
12,144 km · 6,557 nm
15h 16m
estimated nonstop flight time
+14h
time difference · heading northwest
See live KLS→UTP fares Phone-only fares on this route — call free
Flight time details
7,546 miles nonstop takes roughly 15h 16m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- UTP — U-Tapao International Airport · Pattaya, Thailand
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 UTP
- HHQ · Hua Hin Airport71 mi away
- BKK · Suvarnabhumi Airport71 mi away
- DMK · Don Mueang International Airport89 mi away
- TDX · Trat Airport93 mi away
Frequently asked questions
How far is KLS from UTP?
The flight distance from Kelso (KLS) to Pattaya (UTP) is 7,546 miles (12,144 km, 6,557 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to UTP?
A nonstop flight takes about 15h 16m 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 Pattaya?
Pattaya is 14 hours ahead of Kelso.
What is the cheapest way to fly from KLS to UTP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–UTP that never appear on search engines, with no booking fees.