Frontier Airlines is in search of a thinner seat to enable the low-cost carrier to increase capacity on its 60 Airbus A320-family aircraft.

The airline expects to place an order for new seats this year, Senior VP-Commercial Daniel Shurz said in an interview at the Low-Cost Airlines World, Americas, conference last week in Miami.

Frontier currently is reconfiguring its fleet of 15 A320s to include six more seats, which will raise the total number from 162 to 168, and has already added two seats on its A318s, says Shurz.

The added seating represents the upper limit of seats Frontier can add without an expensive cabin realignment, adds Shurz, so the airline recently issued what he describes as a “request for information” on new seats and has begun to meet with vendors.

The expanded seating would enable Frontier to lower its unit costs further, part of an effort to redefine itself as an “ultra-low-cost carrier.”