You can book 𝕂𝕃M 𝔸𝕚𝕣𝕝𝕚nes flights up to 11 months in advance. How far in advance can you book a 𝕂𝕃M flight? 𝕂𝕃M Flight Booking Timeline: +1-804\\853\\9001] You can typically book a 𝕂𝕃M flight up to 11 months (or about 330 days) in advance of your intended travel date +1-804\\853\\9001].