How long is the flight to Shannon?
The below times are for non stop flight segments to Shannon Airport (SNN). From John F Kennedy International Airport (JFK), the flight time is roughly 5 hours and 36 minutes. From Newark Liberty International Airport (EWR), the flight time is roughly 5 hours and 41 minutes.
Please keep in mind that the above are time in the air; most travel sites will quote a ramp to ramp time which is about a 1/2 hour greater than the air time.