Originally Posted by
DanTravels
I know that, for example, UA's web site will tell me what ship number operated a flight today or yesterday (and where it came in from, and so on). But if I want to know what planes I was on EWR-DEN-LAX-ITO (UA 1643/235/1004) on June 23, 2013... I'm not sure if that's info I can find.
If you have the ship number, you can find the tail number and other info at planespotters.net
Eg, Start here,
https://www.planespotters.net/airline/United-Airlines
if you click on the fleet count for the type you want, you'll get a page with a table of all the aircraft, you can sort by fleet number and see the rest of the info.