The Bureau of Transportation Statistics keeps delay/cancellation statistics. That's how I convinced flying DFW to Aspen was a reasonable choice (DEN to Aspen is cancelled a lot more, I think for someone disingenuous reasons).
So go in here and poke around till you get the stats you need:
https://www.transtats.bts.gov/OT_Delay/ot_delaycause1.asp?type=1&pn=1
So go in here and poke around till you get the stats you need:
https://www.transtats.bts.gov/OT_Delay/ot_delaycause1.asp?type=1&pn=1