I seem to remember at Colgan that we didn't get vacation the first year. Sick time did accrue at some point and I did take a sick day.
At SkyWest you being accruing sick time after 90 days and vacation after 6 months, however you cannot take vacation until after your one year anniversery. 1-4 years at the company works out to about 2 weeks vacation, 5-9 year is about 3 weeks vacation, and 10+ is 4 weeks. It all depends on what value credit you give to each vacation day.