Originally Posted by Flyby1206

If you have a reserve schedule where you work the last 5 days in a row of the month, then bid a schedule working the first 4 days of the next month crew sched will have to give you an extra day off (can't work 7 days in a row). You can also put in a request to drop a day of reserve duty, but you will lose pay if they grant your request.

To really get 15+ days off you have to have a regular line of flying, not reserve. The regular lines can be built up to about 90 hrs of work, then you could pick up OT on top of that. Manipulating your schedule can get real tricky, but you'll learn how once you get on the line.