JSI → SOFSkiathos to Sofia

live

Direct flights from Skiathos (JSI) to Sofia (SOF): 2 nonstop departures observed each week across 1 airline. The median arrival is 2 minutes early. No cancellations were recorded across the 1 tracked flight. The nonstop covers 391 km, an estimated 1 hour 0 minutes in the air. Measured by Pro Flight Search from live flight boards at Skiathos and Sofia. Updated 23 September 2026 at 12:53 UTC.

JSI Skiathos tracking
SOF Sofia smooth · +0
391 km · ~1h 00m est.
departs 08:352x weekly
Running clean · 1 airline · 2x weekly · nonstop
100 / 100

route health from live JSI and SOF delay boards

Median arrival delay is −2 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−2 minacross the last 1 operated legs
Flight time~1h 00mestimated from route distance
Weekly departures2x1 direct airline on the leg

Who flies it

observed on the boards · 7 days
RyanairFR

Flights FR4790 varies We Sa

History

operated legs · board outcomes
09-19FR4790arrived−2

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
JSISkiathos tracking Full JSI delay board →
SOFSofia +0 min smooth 🌤 clear · WNW 3 kt Full SOF delay board →

How the Skiathos to Sofia route actually runs

Pro Flight Search records official board updates for nonstop JSI to SOF flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Skiathos (JSI) to Sofia (SOF) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/JSI-SOF
How we measure this →

JSI to SOF questions

Is JSI–SOF running on time right now?

Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from JSI to SOF?

Great-circle distance is 391 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 58–64 min gate-to-gate on this route.

How often does JSI–SOF fly?

Ryanair runs the route with about 2 flights a week (wed, sat). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

A blend of departure-side delay at JSI and arrival-side delay at SOF, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.