The former Hills and Laguna Beach star was casual and chic at LAX airport on Wednesday (9 April) in a simple monochrome ensemble.
Kristin, 26, teamed black leggings with a black T-shirt and unusual white jacket for her flight, proving you definitely can be stylish and comfortable in the air.
There's no word on where Kristin was jetting off to but we imagine she was on her way home to husband Jay Cutler and their son Camden Jack in Chicago.
California-born Kristin's husband is a quarterback with American football team Chicago Bears, so the family are based there.
But as the presenter of new E! show The Fabulist, blonde Kristin has been jetting between LA and New York in recent weeks working on the series and promoting it.
Chatting to Reveal, Kristin said: "With the new show I have to travel to New York once a week, but it's only an hour-and-a-half away and I'm usually only there for one or two nights, so it's not too bad. It's all worth it, as I have a ton of fun doing the show. We talk about everything that I love talking about and, ultimately, I believe that when you're doing what makes you happy, you're a better wife and a better mother."
As for keeping the spark alive with Jay, she told us: "Luckily we are never gone for more than a couple of nights, so that helps. When we are away, we FaceTime so we can still see each other. Then, when we are together, we make time for the relationship and time for each other."
Kristin announced her second pregnancy in October 2013.
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