Originally Posted by
OhDoctor
Thanks; I know that individual planes don't often stay on the same route, but some do, and given how sporadic and seasonal Mint service is to the Caribbean, I didn't think they would be flying this back to SFO/LAX or even LIR.. but you're right, I don't actually know what the plane is doing. I don't have a paid account on Flightaware or the like, so I can't check the tail (B6 263 on 6/13).
You won't know the registration number of the future plane; certainly not one two months from now. Flightradar24, for example, actually provides the registration number for past flights, today's flights, and the next few days.
I pulled up recent flight history of a B6 plane, tail number N942JB, having landed in JFK last night from Seattle, below is a sample of its flight within the last week or so: