Need help booking?
Unpublished phone-only deals available
SEP to KSO: distance & flight time
Stephenville (Stephenville Clark Regional Airport) → Kastoria (Kastoria National Airport)
6,103 mi
9,822 km · 5,303 nm
12h 26m
estimated nonstop flight time
+8h
time difference · heading northeast
See live SEP→KSO fares Phone-only fares on this route — call free
Flight time details
6,103 miles nonstop takes roughly 12h 26m 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
- SEP — Stephenville Clark Regional Airport · Stephenville, United States
- KSO — Kastoria National Airport · Kastoria, Greece
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 SEP
- MWL · Mineral Wells Airport40 mi away
- DFW · Dallas Fort Worth International Airport81 mi away
- BKD · Stephens County Airport54 mi away
- FWH · NAS Fort Worth JRB/Carswell Field57 mi away
Near KSO
- KZI · Filippos Airport31 mi away
- IOA · Ioannina Airport57 mi away
- OHD · Ohrid St. Paul the Apostle Airport58 mi away
- LRA · Larisa Airport83 mi away
Frequently asked questions
How far is SEP from KSO?
The flight distance from Stephenville (SEP) to Kastoria (KSO) is 6,103 miles (9,822 km, 5,303 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEP to KSO?
A nonstop flight takes about 12h 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 Stephenville and Kastoria?
Kastoria is 8 hours ahead of Stephenville.
What is the cheapest way to fly from SEP to KSO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEP–KSO that never appear on search engines, with no booking fees.