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RTM to KLS: distance & flight time
Rotterdam (Rotterdam The Hague Airport) → Kelso (Southwest Washington Regional Airport)
4,977 mi
8,009 km · 4,325 nm
10h 13m
estimated nonstop flight time
-9h
time difference · heading northwest
See live RTM→KLS fares Phone-only fares on this route — call free
Flight time details
4,977 miles nonstop takes roughly 10h 13m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- RTM — Rotterdam The Hague Airport · Rotterdam, Netherlands
- 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 RTM
- AMS · Amsterdam Airport Schiphol28 mi away
- LID · Valkenburg Naval Air Base14 mi away
- GLZ · Gilze Rijen Air Base34 mi away
- WOE · Woensdrecht Air Base35 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 RTM from KLS?
The flight distance from Rotterdam (RTM) to Kelso (KLS) is 4,977 miles (8,009 km, 4,325 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RTM to KLS?
A nonstop flight takes about 10h 13m 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 Rotterdam and Kelso?
Kelso is 9 hours behind Rotterdam.
What is the cheapest way to fly from RTM to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RTM–KLS that never appear on search engines, with no booking fees.