Spirit Airlines has announced that it has been ranked third among the 10 largest US carriers for domestic flight punctuality . The ranking is based on US Department Of Transportation (DOT) data covering June, July, and August 2025. The airline operated over 51,000 domestic flights during this time period, and outperformed many legacy carriers in on-time performance.

Spirit Airlines

IATA Code

NK

ICAO Code

NKS

Airline Type

Ultra-Low-Cost Carrier

IATA/ICAO Code

NK/NKS

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This performance comes even while Spirit is facing serious financial headwinds, with two bankruptcies, debt pressure, and a poor public brand image severely hindering the carrier's future prospects. Despite those challenges, the company says its operational reliability has improve

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