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FSI to HIO: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Hillsboro (Portland Hillsboro Airport)
1,491 mi
2,399 km · 1,296 nm
3h 42m
estimated nonstop flight time
-2h
time difference · heading northwest
See live FSI→HIO fares Phone-only fares on this route — call free
Flight time details
1,491 miles nonstop takes roughly 3h 42m 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
- HIO — Portland Hillsboro Airport · Hillsboro, 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 HIO
- PDX · Portland International Airport17 mi away
- TTD · Portland Troutdale Airport27 mi away
- KLS · Southwest Washington Regional Airport40 mi away
- OTK · Tillamook Airport43 mi away
Frequently asked questions
How far is FSI from HIO?
The flight distance from Fort Sill (FSI) to Hillsboro (HIO) is 1,491 miles (2,399 km, 1,296 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to HIO?
A nonstop flight takes about 3h 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 Fort Sill and Hillsboro?
Hillsboro is 2 hours behind Fort Sill.
What is the cheapest way to fly from FSI to HIO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–HIO that never appear on search engines, with no booking fees.