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ASE to FSI: distance & flight time
Aspen (Aspen-Pitkin Co/Sardy Field) → Fort Sill (Henry Post Army Air Field (Fort Sill))
564 mi
908 km · 490 nm
1h 42m
estimated nonstop flight time
+1h
time difference · heading southeast
See live ASE→FSI fares Phone-only fares on this route — call free
Flight time details
564 miles nonstop takes roughly 1h 42m 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
- ASE — Aspen-Pitkin Co/Sardy Field · Aspen, 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 ASE
- EGE · Eagle County Regional Airport29 mi away
- GUC · Gunnison Crested Butte Regional Airport48 mi away
- RIL · Garfield County Regional Airport50 mi away
- MTJ · Montrose Regional Airport74 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 ASE from FSI?
The flight distance from Aspen (ASE) to Fort Sill (FSI) is 564 miles (908 km, 490 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASE to FSI?
A nonstop flight takes about 1h 42m 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 Aspen and Fort Sill?
Fort Sill is 1 hour ahead of Aspen.
What is the cheapest way to fly from ASE to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASE–FSI that never appear on search engines, with no booking fees.