Allegiant and Sun Country Airlines today announced a definitive merger agreement under which Allegiant will acquire Sun Country in a cash and stock transaction at an implied value of $18.89 per Sun Country share. Sun Country shareholders will receive 0.1557 shares of Allegiant common stock and $4.10 in cash for each Sun Country share owned, representing a premium of 19.8% over Sun Country’s closing share price of $15.77 on January 9, 2026, and 18.8% based on the 30-day volume-weighted average price. The transaction values Sun Country at approximately $1.5 billion, inclusive of $0.4 billion of Sun Country’s net debt. Upon closing, Allegiant and Sun Country shareholders will own approximately 67% and 33%, respectively, of the combined company on a fully diluted basis.