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FSI to RIA: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Santa Maria (Santa Maria Airport)
5,316 mi
8,556 km · 4,620 nm
10h 53m
estimated nonstop flight time
+2h
time difference · heading southeast
See live FSI→RIA fares Phone-only fares on this route — call free
Flight time details
5,316 miles nonstop takes roughly 10h 53m gate to gate, flying southeast. 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
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- RIA — Santa Maria Airport · Santa Maria, Brazil
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 RIA
- GEL · Santo Ângelo Airport103 mi away
- BGX · Comandante Gustavo Kraemer Airport119 mi away
- PFB · Lauro Kurtz Airport131 mi away
- SRA · Santa Rosa Airport134 mi away
Frequently asked questions
How far is FSI from RIA?
The flight distance from Fort Sill (FSI) to Santa Maria (RIA) is 5,316 miles (8,556 km, 4,620 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to RIA?
A nonstop flight takes about 10h 53m 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 Fort Sill and Santa Maria?
Santa Maria is 2 hours ahead of Fort Sill.
What is the cheapest way to fly from FSI to RIA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–RIA that never appear on search engines, with no booking fees.