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FSI to ORD: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Chicago (Chicago O'Hare International Airport)
761 mi
1,224 km · 661 nm
2h 7m
estimated nonstop flight time
Same time
time difference · heading northeast
See live FSI→ORD fares Phone-only fares on this route — call free
Flight time details
761 miles nonstop takes roughly 2h 7m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- ORD — Chicago O'Hare International Airport · Chicago, 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 ORD
- PWK · Chicago Executive Airport9 mi away
- MDW · Chicago Midway International Airport15 mi away
- CGX · Chicago Meigs Airport17 mi away
- DPA · Dupage Airport18 mi away
Frequently asked questions
How far is FSI from ORD?
The flight distance from Fort Sill (FSI) to Chicago (ORD) is 761 miles (1,224 km, 661 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to ORD?
A nonstop flight takes about 2h 7m 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 cheapest way to fly from FSI to ORD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–ORD that never appear on search engines, with no booking fees.