Stay as far away as you can
You have no idea the horrors that await you at 21Air. It IS the bottom feeder of all bottom feeders. Clapped out rust buckets from Sanford and Son. Go to the webitse and scroll down to "Meet Our Leaders". MM will want to fire you everyday if you even say the word Maintenance. Capt DNR will make you want to quit day one of training. He is hostile, overbearing, rude and weak. The turnover is 100% because it's so bad. Anything Miami has cockroaches crawling out of it. AND if you have not spent any quality time on an old 767 freighter in the middle of the night going to South America, no rest area, 3 crew, get ready to be so fatigued you won't believe it. CVG you say, the slop you'll have to eat would kill a Moose! Of course if you're lucky enough to get a bunk you can listen to the Kalitta guys yammer in the middle of the night right out side your room.
There is nothing good in anyones life going anywhere near 21Air.