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FSI to SJU: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → San Juan (Luis Munoz Marin International Airport)
2,279 mi
3,668 km · 1,981 nm
4h 56m
estimated nonstop flight time
+1h
time difference · heading east
See live FSI→SJU fares Phone-only fares on this route — call free
Flight time details
2,279 miles nonstop takes roughly 4h 56m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-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
- SJU — Luis Munoz Marin International Airport · San Juan, Puerto Rico
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 SJU
- SIG · Fernando Luis Ribas Dominicci Airport6 mi away
- FAJ · Diego Jimenez Torres Airport24 mi away
- NRR · José Aponte de la Torre Airport27 mi away
- VQS · Vieques Airport44 mi away
Frequently asked questions
How far is FSI from SJU?
The flight distance from Fort Sill (FSI) to San Juan (SJU) is 2,279 miles (3,668 km, 1,981 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to SJU?
A nonstop flight takes about 4h 56m 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 San Juan?
San Juan is 1 hour ahead of Fort Sill.
What is the cheapest way to fly from FSI to SJU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–SJU that never appear on search engines, with no booking fees.