Are there nonstop flights from Kos (KGS) to Skiathos (JSI)?

No. The fastest connection is via Athens, about 1h 32m of total flying time.

What is the fastest connection from Kos (KGS) to Skiathos (JSI)?

via Athens ≈ 1h 32m (estimated flying time, excluding layovers).

Kos International Airport "Ippokratis" (KGS) to Skiathos Island National Airport (JSI)・411 km

No nonstop flights. The fastest connection is via Athens (ATH), about 1h 32m of flying time (layover not included).

None.

1 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.