JetBlue Night Override is $13/hr between 0100-0500 base local time. If a flight is scheduled into that time all of the block will have the night override. If a flight is late and goes into that time frame, then it rounds up to the hour. So if you block in at 0100 base local time, you get one hour of night override.
I forget what international pay is, but it's only for foreign destinations that require special training. So that's just Lima, Quito, Mexico City, Bogota, Medellin, Liberia, and San Jose County. Flights to any other international destinations don't qualify for international override.
That basically means only FLL based crews have the chance for international pay.