Are there nonstop flights from Santorini (JTR) to Olbia (OLB)?

No. The fastest connection is via Naples, about 2h 45m of total flying time.

What is the fastest connection from Santorini (JTR) to Olbia (OLB)?

via Naples ≈ 2h 45m, via Athens ≈ 2h 45m, via Bari ≈ 2h 48m (estimated flying time, excluding layovers).

from 15,000 ANA miles, from 23,000 JAL miles (economy, one way, based on the published award charts).

Santorini International Airport (JTR) to Olbia Costa Smeralda Airport (OLB)・1,471 km

No nonstop flights. The fastest connection is via Naples (NAP), about 2h 45m of flying time (layover not included).

With milesANA 15,000 miles+ (via ATH)JAL 23,000 miles+ (via CDG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

27 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.