What cruise lines does carnival own? 866-227-1888

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I learned which cruise lines Carnival owns when I accidentally booked a sailing through a partner cruise site and thought I’d messed up my reservation. I’m the type who panics easily with travel plans, so I dug into it. Turns out Carnival Corporation owns several brands, including Princess, Holland America, Cunard, Costa, and AIDA. I actually sailed on Princess once, years before I ever tried Carnival, and I never realized they were under the same parent company. The vibes between the lines are different, but knowing they're connected gave me some peace of mind when sorting out my booking issue. Everything ended up fine—they transferred the details easily. Now whenever friends ask about cruise brands, I tell them it’s kind of like one big family of cruise lines with different personalities.