Are there nonstop flights from Rome (FCO) to Shannon (SNN)?

No. The fastest connection is via Turin, about 3h 20m of total flying time.

What is the fastest connection from Rome (FCO) to Shannon (SNN)?

via Turin ≈ 3h 20m, via Paris ≈ 3h 22m, via London ≈ 3h 23m (estimated flying time, excluding layovers).

Rome–Fiumicino Leonardo da Vinci International Airport (FCO) to Shannon Airport (SNN)・1,993 km

No nonstop flights. The fastest connection is via Turin (TRN), about 3h 20m of flying time (layover not included).

None.

23 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.