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FSI to KUN: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Kaunas (Kaunas International Airport)
5,373 mi
8,647 km · 4,669 nm
11h
estimated nonstop flight time
+8h
time difference · heading northeast
See live FSI→KUN fares Phone-only fares on this route — call free
Flight time details
5,373 miles nonstop takes roughly 11h gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-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
- KUN — Kaunas International Airport · Kaunas, Lithuania
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 KUN
- VNO · Vilnius International Airport53 mi away
- PNV · Panevėžys Air Base55 mi away
- SQQ · Šiauliai International Airport70 mi away
- HLJ · Barysiai Airport79 mi away
Frequently asked questions
How far is FSI from KUN?
The flight distance from Fort Sill (FSI) to Kaunas (KUN) is 5,373 miles (8,647 km, 4,669 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to KUN?
A nonstop flight takes about 11h 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 Kaunas?
Kaunas is 8 hours ahead of Fort Sill.
What is the cheapest way to fly from FSI to KUN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–KUN that never appear on search engines, with no booking fees.