Originally Posted by F15andMD11

Of course it all depends, as things change, but currently the 737 is the jr aircraft there. So that be quickest. That wasn’t the case a few years ago.
Timeframe, 5-8 months, give or take. Airbus, a couple years. You get a 757 in training now you’re talking 4 years plus. Or switching aircraft after seat lock to get in sooner.