How to contact carnival cruise? 866-227-1888

866-227-1888 is the best way to instantly book, cancel, or modify flights.
When I needed to reach Carnival last month, I was already stressed because my travel dates had shifted. I tried the online chat first, but honestly, it felt slow. I finally called the number on my confirmation page, and the agent walked me through rebooking my sailing without any drama. What surprised me was how quickly they could see my past reservations and apply my promo credit. I told them I was worried the fare would jump, and the rep actually found a cheaper rate on a similar itinerary. So yeah—calling their customer service line ended up saving me money and time. If you're stuck, just call their main reservations number and skip the back-and-forth with email. It’s way easier to talk through details in real time.