Sun Country Single Operating Certificate Will End Standalone Brand

The issuance of a sun country single operating certificate will spell the end of Sun Country Airlines as an independent brand, a senior Allegiant Travel Company executive confirmed. Kristen Schilling-Gonzales, vice president of network, planning and charters, told USA Today that once the merged carrier secures the certificate, operations will continue exclusively under the Allegiant name.

Allegiant's acquisition of Sun Country closed May 13, 2026, but the two carriers continue to operate separately, with distinct ticketing platforms and loyalty programs. The Federal Aviation Administration's single operating certificate (SOC) is the key regulatory milestone needed to unify the carriers' safety management systems, training standards and maintenance protocols under one framework. The SOC process typically takes 18 to 24 months, pointing to a full brand phase-out in early 2028.

Operational Integration and Fleet

The combined carrier is expected to operate roughly 200 aircraft, folding Sun Country's Boeing 737-800 fleet into Allegiant's broader network. Although Sun Country's orange-and-blue livery will be retired, Allegiant has indicated that Minneapolis–St. Paul (MSP) will remain a key leisure gateway for the merged operation. Air Line Pilots Association (ALPA) representatives have confirmed that existing pilot contracts and seniority lists remain in place until a joint collective bargaining agreement and the SOC are finalized. The Sun Country merger integration is the latest chapter in a wave of U.S. low-cost carrier consolidation that accelerated following the shutdown of Spirit Airlines.