Are there nonstop flights from Olbia (OLB) to Santander (SDR)?

No. The fastest connection is via Barcelona, about 2h 22m of total flying time.

What is the fastest connection from Olbia (OLB) to Santander (SDR)?

via Barcelona ≈ 2h 22m, via Madrid ≈ 2h 41m, via Milan ≈ 2h 49m (estimated flying time, excluding layovers).

from 12,000 JAL miles (economy, one way, based on the published award charts).

Olbia Costa Smeralda Airport (OLB) to Seve Ballesteros-Santander Airport (SDR)・1,133 km

No nonstop flights. The fastest connection is via Barcelona (BCN), about 2h 22m of flying time (layover not included).

With milesJAL 12,000 miles+ (via MAD)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.