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YKN to FSI: distance & flight time
Yankton (Chan Gurney Municipal Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
574 mi
923 km · 499 nm
1h 43m
estimated nonstop flight time
Same time
time difference · heading south
See live YKN→FSI fares Phone-only fares on this route — call free
Flight time details
574 miles nonstop takes roughly 1h 43m gate to gate, flying south. 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
- YKN — Chan Gurney Municipal Airport · Yankton, United States
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, 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 YKN
- FSD · Joe Foss Field Airport56 mi away
- SUX · Sioux Gateway Col. Bud Day Field62 mi away
- OFK · Karl Stefan Memorial Airport64 mi away
- MHE · Mitchell Municipal Airport68 mi away
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
Frequently asked questions
How far is YKN from FSI?
The flight distance from Yankton (YKN) to Fort Sill (FSI) is 574 miles (923 km, 499 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YKN to FSI?
A nonstop flight takes about 1h 43m 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 YKN to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YKN–FSI that never appear on search engines, with no booking fees.