Are there nonstop flights from Miami (MIA) to Olbia (OLB)?

No. The fastest connection is via Barcelona, about 10h 37m of total flying time.

What is the fastest connection from Miami (MIA) to Olbia (OLB)?

via Barcelona ≈ 10h 37m, via Madrid ≈ 10h 40m, via Paris ≈ 10h 53m (estimated flying time, excluding layovers).

from 27,500 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Miami International Airport (MIA) to Olbia Costa Smeralda Airport (OLB)・8,152 km

No nonstop flights. The fastest connection is via Barcelona (BCN), about 10h 37m of flying time (layover not included).

With milesANA 27,500 miles+ (via FRA)JAL 37,000 miles+ (via MAD)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

16 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.