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RNT to FSI: distance & flight time
Renton (Renton Municipal Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
1,515 mi
2,438 km · 1,317 nm
3h 26m
estimated nonstop flight time
+2h
time difference · heading southeast
See live RNT→FSI fares Phone-only fares on this route — call free
Flight time details
1,515 miles nonstop takes roughly 3h 26m 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
- RNT — Renton Municipal Airport · Renton, 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 RNT
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 RNT from FSI?
The flight distance from Renton (RNT) to Fort Sill (FSI) is 1,515 miles (2,438 km, 1,317 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RNT to FSI?
A nonstop flight takes about 3h 26m 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 Renton and Fort Sill?
Fort Sill is 2 hours ahead of Renton.
What is the cheapest way to fly from RNT to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RNT–FSI that never appear on search engines, with no booking fees.