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FSI to CLS: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Chehalis (Chehalis Centralia Airport)
1,523 mi
2,451 km · 1,324 nm
3h 27m
estimated nonstop flight time
-2h
time difference · heading northwest
See live FSI→CLS fares Phone-only fares on this route — call free
Flight time details
1,523 miles nonstop takes roughly 3h 27m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- CLS — Chehalis Centralia Airport · Chehalis, 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 FSI
- LAW · Lawton Fort Sill Regional Airport6 mi away
- DUC · Halliburton Field28 mi away
- HBR · Hobart Regional Airport44 mi away
- SPS · Sheppard Air Force Base-Wichita Falls Municipal Airport46 mi away
Near CLS
- OLM · Olympia Regional Airport21 mi away
- SEA · Seattle Tacoma International Airport62 mi away
- GRF · Gray Army Air Field34 mi away
- KLS · Southwest Washington Regional Airport39 mi away
Frequently asked questions
How far is FSI from CLS?
The flight distance from Fort Sill (FSI) to Chehalis (CLS) is 1,523 miles (2,451 km, 1,324 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to CLS?
A nonstop flight takes about 3h 27m 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 Fort Sill and Chehalis?
Chehalis is 2 hours behind Fort Sill.
What is the cheapest way to fly from FSI to CLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–CLS that never appear on search engines, with no booking fees.