Are there nonstop flights from Milan (LIN) to Porto (OPO)?

Yes. easyJet fly this route. Flight time is about 2h 17m.

What is the fastest connection from Milan (LIN) to Porto (OPO)?

via Geneva ≈ 2h 50m, via Madrid ≈ 2h 54m, via Barcelona ≈ 2h 55m (estimated flying time, excluding layovers).

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

Milano Linate Airport (LIN) to Francisco de Sá Carneiro Airport (OPO)・1,521 km

Nonstop flights available (1 airline). Flight time about 2h 17m. Nonstop return flights also operate.

With milesJAL 15,000 miles+ (via MAD)ANA 15,000 miles+ (via FRA)Economy, one way, estimate. Tap a connection for miles by cabin.

32 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.