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KLS to MSS: distance & flight time
Kelso (Southwest Washington Regional Airport) → Massena (Massena International Richards Field)
2,291 mi
3,688 km · 1,991 nm
4h 58m
estimated nonstop flight time
+3h
time difference · heading east
See live KLS→MSS fares Phone-only fares on this route — call free
Flight time details
2,291 miles nonstop takes roughly 4h 58m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- MSS — Massena International Richards Field · Massena, 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 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 MSS
- YCC · Cornwall Regional Airport18 mi away
- OGS · Ogdensburg International Airport35 mi away
- YOW · Ottawa Macdonald-Cartier International Airport48 mi away
- SLK · Adirondack Regional Airport49 mi away
Frequently asked questions
How far is KLS from MSS?
The flight distance from Kelso (KLS) to Massena (MSS) is 2,291 miles (3,688 km, 1,991 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to MSS?
A nonstop flight takes about 4h 58m 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 Massena?
Massena is 3 hours ahead of Kelso.
What is the cheapest way to fly from KLS to MSS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–MSS that never appear on search engines, with no booking fees.