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HIO to FSI: distance & flight time
Hillsboro (Portland Hillsboro Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
1,491 mi
2,399 km · 1,296 nm
3h 42m
estimated nonstop flight time
+2h
time difference · heading east
See live HIO→FSI fares Phone-only fares on this route — call free
Flight time details
1,491 miles nonstop takes roughly 3h 42m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- HIO — Portland Hillsboro Airport · Hillsboro, 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 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
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 HIO from FSI?
The flight distance from Hillsboro (HIO) to Fort Sill (FSI) 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 HIO to FSI?
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 Hillsboro and Fort Sill?
Fort Sill is 2 hours ahead of Hillsboro.
What is the cheapest way to fly from HIO to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HIO–FSI that never appear on search engines, with no booking fees.