The pregnant star was pictured with her finger to her lips as she arrived at Los Angeles International Airport with North on Saturday, 5 September.
Kim, 34, carried her sleeping toddler – who was clad in a fluffy black jacket - through arrivals, while husband Kanye West, 38, walked ahead of them. Kim was looking very glam for her flight, teaming skinny ripped black jeans with high heels and one of her favourite, floor-length coats.
The family were en route to New York, where Kim and Kanye attended the wedding of friend Steve Stoute the following day.
North's little Frozen suitcase was nowhere to be seen this time around: it's well known that the two-year-old loves the Disney movie and has been seen on several occasions wheeling her suitcase through terminals.
Kim told Elle earlier this year: "She's always loved to carry—every time I have my big luggage and we're going on vacation, she'll try to take my big luggage and carry it herself, so we got the Frozen suitcase so she has to carry it everywhere. It took us about 30 minutes longer to get through the airport because she had to carry her suitcase herself. She didn't want to be picked up, she didn't want anything. She did ride on it, but other than that, she has to do it. She's very independent."
North will welcome a little brother this December.
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