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ASH to FSI: distance & flight time
Nashua (Boire Field) → Fort Sill (Henry Post Army Air Field (Fort Sill))
1,546 mi
2,489 km · 1,344 nm
3h 30m
estimated nonstop flight time
-1h
time difference · heading west
See live ASH→FSI fares Phone-only fares on this route — call free
Flight time details
1,546 miles nonstop takes roughly 3h 30m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- ASH — Boire Field · Nashua, 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 ASH
- BOS · General Edward Lawrence Logan International Airport39 mi away
- MHT · Manchester-Boston Regional Airport11 mi away
- LWM · Lawrence Municipal Airport20 mi away
- BED · Laurence G Hanscom Field24 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 ASH from FSI?
The flight distance from Nashua (ASH) to Fort Sill (FSI) is 1,546 miles (2,489 km, 1,344 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASH to FSI?
A nonstop flight takes about 3h 30m 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 Nashua and Fort Sill?
Fort Sill is 1 hour behind Nashua.
What is the cheapest way to fly from ASH to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASH–FSI that never appear on search engines, with no booking fees.