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DGL to FSI: distance & flight time
Douglas (Douglas Municipal Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
682 mi
1,098 km · 593 nm
1h 57m
estimated nonstop flight time
+2h
time difference · heading northeast
See live DGL→FSI fares Phone-only fares on this route — call free
Flight time details
682 miles nonstop takes roughly 1h 57m gate to gate, flying northeast. 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
- DGL — Douglas Municipal Airport · Douglas, 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 DGL
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 DGL from FSI?
The flight distance from Douglas (DGL) to Fort Sill (FSI) is 682 miles (1,098 km, 593 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DGL to FSI?
A nonstop flight takes about 1h 57m 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 Douglas and Fort Sill?
Fort Sill is 2 hours ahead of Douglas.
What is the cheapest way to fly from DGL to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DGL–FSI that never appear on search engines, with no booking fees.