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HDN to FSI: distance & flight time
Hayden (Yampa Valley Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
628 mi
1,011 km · 546 nm
1h 50m
estimated nonstop flight time
+1h
time difference · heading southeast
See live HDN→FSI fares Phone-only fares on this route — call free
Flight time details
628 miles nonstop takes roughly 1h 50m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- HDN — Yampa Valley Airport · Hayden, 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 HDN
- SBS · Steamboat Springs Bob Adams Field19 mi away
- EGE · Eagle County Regional Airport60 mi away
- SAA · Shively Field70 mi away
- RIL · Garfield County Regional Airport71 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 HDN from FSI?
The flight distance from Hayden (HDN) to Fort Sill (FSI) is 628 miles (1,011 km, 546 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HDN to FSI?
A nonstop flight takes about 1h 50m 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 Hayden and Fort Sill?
Fort Sill is 1 hour ahead of Hayden.
What is the cheapest way to fly from HDN to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HDN–FSI that never appear on search engines, with no booking fees.