Originally Posted by makingwAAves

I've seen a couple people mention to others to watch flights for a couple of days to see what the reliability rate is for them arriving and leaving on time. I'm flying from ORD-SFO the second week of July and i wanted to check out when would be the best time to depart, see if i want to fly an MD80 or a 763, etc etc. Can anyone provide me with any info on how to do this?