JetBlue Airways no longer operates flights or has physical offices in Havana, Cuba, as the airline suspended all services to the island effective September 17, 2023, due to unsustainable market conditions and regulatory changes, so any previous office addresses (like Calle 23 or the airport location) are no longer active for ticket services. For current JetBlue information or assistance, you'll need to use their website (JetBlue.com) or call their general customer service line.