Are there nonstop flights from New Delhi (DEL) to Skiathos (JSI)?

No. The fastest connection is via Athens, about 7h 2m of total flying time.

What is the fastest connection from New Delhi (DEL) to Skiathos (JSI)?

via Athens ≈ 7h 2m, via Vienna ≈ 8h 51m, via Rome ≈ 9h 9m (estimated flying time, excluding layovers).

from 29,500 ANA miles (economy, one way, based on the published award charts).

Indira Gandhi International Airport (DEL) to Skiathos Island National Airport (JSI)・5,013 km

No nonstop flights. The fastest connection is via Athens (ATH), about 7h 2m of flying time (layover not included).

With milesANA 29,500 miles+ (via VIE)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

10 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.