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RIV to KLS: distance & flight time
Riverside (March ARB Airport) → Kelso (Southwest Washington Regional Airport)
896 mi
1,442 km · 779 nm
2h 25m
estimated nonstop flight time
Same time
time difference · heading north
See live RIV→KLS fares Phone-only fares on this route — call free
Flight time details
896 miles nonstop takes roughly 2h 25m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- RIV — March ARB Airport · Riverside, United States
- 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 RIV
- RAL · Riverside Municipal Airport12 mi away
- SBD · San Bernardino International Airport15 mi away
- RBK · French Valley Airport22 mi away
- ONT · Ontario International Airport23 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 RIV from KLS?
The flight distance from Riverside (RIV) to Kelso (KLS) is 896 miles (1,442 km, 779 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RIV to KLS?
A nonstop flight takes about 2h 25m 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 cheapest way to fly from RIV to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RIV–KLS that never appear on search engines, with no booking fees.