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PHL to FSI: distance & flight time
Philadelphia (Philadelphia International Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
1,320 mi
2,124 km · 1,147 nm
3h 20m
estimated nonstop flight time
-1h
time difference · heading west
See live PHL→FSI fares Phone-only fares on this route — call free
Flight time details
1,320 miles nonstop takes roughly 3h 20m 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
- PHL — Philadelphia International Airport · Philadelphia, 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 PHL
- BBX · Wings Field18 mi away
- PNE · Northeast Philadelphia Airport19 mi away
- LLY · South Jersey Regional Airport22 mi away
- NXX · Willow Grove Naval Air Station/Joint Reserve Base23 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 PHL from FSI?
The flight distance from Philadelphia (PHL) to Fort Sill (FSI) is 1,320 miles (2,124 km, 1,147 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHL to FSI?
A nonstop flight takes about 3h 20m 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 Philadelphia and Fort Sill?
Fort Sill is 1 hour behind Philadelphia.
What is the cheapest way to fly from PHL to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHL–FSI that never appear on search engines, with no booking fees.