# How might one obtain aircraft registration numbers for past flights (months ago)?

I am trying to obtain tail numbers for some flights to retrospectively complete my 5 month old's new passenger flight log book. Antonakis, FlightRadar24 and FlightAware sites are not giving me the answers since the flights took place too long ago.

This is the flight information that I have:

Flight No.    Date          Route

AC 8036       29/10/2015    YYZ-PIT
AC 8037       02/11/2015    PIT-YYZ
AC 7508       05/12/2015    YTZ-YUL
AC 7521       12/12/2015    YUL-YTZ


Any help or instructions on where to obtain info would be greatly appreciated.

Note that this question is not a duplicate. This question is not answered by the question, How to determine the aircraft tail number on a particular flight?, since these flights occured too long ago to be found through the methods discussed in the answers to that question.

• Try checking the airline's site, they may or may not not be there though. – SMS von der Tann Feb 2 '16 at 18:36
• Try this site – TomMcW Feb 2 '16 at 19:22
• @TomMcW It looks like he already checked there. – SMS von der Tann Feb 2 '16 at 21:12
• A note, those flights were likely not operated by Air Canada, but probably another airline. The high flight numbers are a good sign of that. If you can figure out the airline, it could help you quite a bit. – Zizouz212 Feb 4 '16 at 2:46
• In fact, AC8036 was a flight operated by Jazz Aviation. The aircraft seems to be a Bombardier CRJ. That should help you narrow down things, would it not? (Of course, this is for the latest flight that happened) – Zizouz212 Feb 4 '16 at 2:48