Are there nonstop flights from Naples (NAP) to Marseille (MRS)?

Yes. Ryanair fly this route. Flight time is about 1h 26m.

What is the fastest connection from Naples (NAP) to Marseille (MRS)?

via Rome ≈ 1h 57m, via Olbia ≈ 2h, via Cagliari ≈ 2h 14m (estimated flying time, excluding layovers).

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

Naples International Airport (NAP) to Marseille Provence Airport (MRS)・800 km

Nonstop flights available (1 airline). Flight time about 1h 26m. Nonstop return flights also operate.

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

33 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.