ATLANTA — Travelers flying with Frontier Airlines can now book first-class seats as the low-cost carrier prepares to introduce upgraded seating on flights beginning next spring.

Reservations opened Tuesday for the new first-class option, with the first flights featuring the upgraded seats scheduled to begin March 5, 2027.

The new seating arrangement will feature two-by-two seating in the first two rows of the aircraft, offering passengers additional legroom and headroom.

First-class bundles will start at an introductory rate of $129 one way, which includes two checked bags, a carry-on bag and priority boarding.

Frontier also plans to add six additional rows of extra-legroom seating.

The airline has been expanding its presence in the Atlanta market, increasing its available seats by 40% from last summer to this summer.

The expansion comes as Southwest Airlines has been reducing its presence in the Atlanta market.

WSB Radio’s Ashley Simmons & Cheryl Castro contributed to this story.