Frontier Airlines, which is adding crew bases as part of a network restructuring, will open a San Juan crew base in June.
The base, which will be the airline's 13th, will employ up to 90 pilots and 200 flight attendants within year of opening, Frontier estimates.
The Puerto Rico opening will follow planned crew base openings in Cleveland in March and Cincinnati in May as well as the May reopening of a Chicago crew base.
Frontier is adding bases to facilitate a plan to increase out-and-back flying to nearly 90% of its network by the spring, up from 50% just a few months ago. By flying more out-and-back routes and fewer complex point-to-point itineraries, the discount carrier aims to improve operational reliability and cut costs.
Along with San Juan, Frontier flies to Aguadilla and Ponce in Puerto Rico. Frontier is flying 18 routes to Puerto Rico this month, Cirium flight schedule data shows. The airline has more than doubled its Puerto Rico seat capacity since 2019.