Quote from Brandon S. Pedersen - Chief Financial Officer & Executive Vice President, Finance. "We'll take delivery of 11 737-900ERs this year, 19 next year and 12 900ERs and our first MAX in 2017. The vast majority of these airplanes will replace the 27 737-400s we're retiring over the next two years. The result is that Mainline fleet will grow by 10 units this year and six units total over the next two years."

This year we grew by 10 aircraft and combined with predicted retirements that came to an estimated 215 new hires. So with 3 aircraft per year growth Im guessing hiring will be around 80 per year.