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FRD to FSI: distance & flight time
Friday Harbor (Friday Harbor Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
1,581 mi
2,545 km · 1,374 nm
3h 34m
estimated nonstop flight time
+2h
time difference · heading southeast
See live FRD→FSI fares Phone-only fares on this route — call free
Flight time details
1,581 miles nonstop takes roughly 3h 34m 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
- FRD — Friday Harbor Airport · Friday Harbor, 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 FRD
- LPS · Lopez Island Airport5 mi away
- YVR · Vancouver International Airport47 mi away
- ESD · Orcas Island Airport14 mi away
- YWH · Victoria Harbour Seaplane Base18 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 FRD from FSI?
The flight distance from Friday Harbor (FRD) to Fort Sill (FSI) is 1,581 miles (2,545 km, 1,374 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FRD to FSI?
A nonstop flight takes about 3h 34m 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 Friday Harbor and Fort Sill?
Fort Sill is 2 hours ahead of Friday Harbor.
What is the cheapest way to fly from FRD to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FRD–FSI that never appear on search engines, with no booking fees.