• Allegiant has acquired Sun Country for $1.5 billion.
• The deal includes $400 million of Sun Country's net debt.
• Allegiant shareholders own 67% of the company, while Sun Country shareholders own 33%.
• The merger aims to create a leading leisure-focused airline.

This merger may indicate a trend towards consolidation in the US airline industry, particularly among leisure carriers. The combination of Allegiant and Sun Country could create a more competitive and efficient airline, which suggests potential benefits for customers and shareholders, but may also lead to increased labor costs.