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SDU to FSI: distance & flight time
Rio De Janeiro (Santos Dumont Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
5,378 mi
8,655 km · 4,673 nm
11h 1m
estimated nonstop flight time
-2h
time difference · heading northwest
See live SDU→FSI fares Phone-only fares on this route — call free
Flight time details
5,378 miles nonstop takes roughly 11h 1m 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
- SDU — Santos Dumont Airport · Rio De Janeiro, Brazil
- 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 SDU
- GIG · Rio Galeão – Tom Jobim International Airport9 mi away
- QNV · Aeroclube Airport22 mi away
- SNZ · Santa Cruz Air Force Base35 mi away
- CFB · Cabo Frio Airport69 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 SDU from FSI?
The flight distance from Rio De Janeiro (SDU) to Fort Sill (FSI) is 5,378 miles (8,655 km, 4,673 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDU to FSI?
A nonstop flight takes about 11h 1m 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 Rio De Janeiro and Fort Sill?
Fort Sill is 2 hours behind Rio De Janeiro.
What is the cheapest way to fly from SDU to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDU–FSI that never appear on search engines, with no booking fees.