Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Watertown, New York to Dublin as you normally would.
Watertown
Dublin
1 stop
8h 57mDublin
Watertown
1 stop
30h 18mAmerican Airlines
Watertown
Dublin
1 stop
8h 57mDublin
Watertown
2 stops
19h 42mAmerican Airlines
Watertown
Dublin
1 stop
8h 35mDublin
Watertown
1 stop
13h 02mAmerican Airlines
Watertown
Dublin
1 stop
8h 57mDublin
Watertown
1 stop
30h 18mAmerican Airlines
Watertown
Dublin
1 stop
8h 57mDublin
Watertown
2 stops
19h 42mAmerican Airlines
Watertown
Dublin
1 stop
8h 35mDublin
Watertown
1 stop
13h 02mAmerican Airlines
Watertown
Dublin
1 stop
8h 57mDublin
Watertown
1 stop
30h 18mAmerican Airlines
Watertown
Dublin
1 stop
8h 57mDublin
Watertown
2 stops
19h 42mAmerican Airlines
Yes, there are multiple flights from Watertown, New York to Dublin for under $800. The cheapest flight booked recently is on American Airlines for just $703, but on average you can expect to pay $724.