I know that the Cowboys have used 757s flown by AA
, since a friend of mine once worked a charter from ORD
Back in the 80s, the University of Michigan used to charter UA
DC-8s for away football games.
I also remember once hearing John Robinson, when he was coaching the Rams, say that they had about 4500 pounds of equipment to take to an away game, but that if they expected brutally cold weather, the team would take an extra 1800 pounds of cold-weather gear.
Add in all of the bags for 45 players plus coaches, trainers, media, etc., and that winds up being a lot of stuff going into the cargo hold.