Are there nonstop flights from Rome (FCO) to Cancún (CUN)?

Yes. Neos fly this route. Flight time is about 11h 18m.

What is the fastest connection from Rome (FCO) to Cancún (CUN)?

via Miami ≈ 11h 48m, via Havana ≈ 11h 50m, via Barcelona ≈ 11h 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).

Rome–Fiumicino Leonardo da Vinci International Airport (FCO) to Cancún International Airport (CUN)・9,183 km

Nonstop flights available (1 airline). Flight time about 11h 18m. Nonstop return flights also operate.

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

43 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.