Country star Keith Urban was flying solo to Los Angeles on Tuesday and the absence of his daughters certainly seemed to be taking its toll.

Are Keith Urban's Daughters Becoming Frequent Flyers? 

According to the Daily Mail on Thursday, the "Somewhere In My Car" singer emerged from LAX looking exhausted and even a little disappointed in a pair of sunglasses and black t-shirt as he rolled his suitcase out to the car.

This side of Urban is in stark contrast with the man who was spotted at the airport leaving Los Angeles with his daughters on March 13.

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The Daily Mail reported that the father of two was all smiles as he held four-year-old Faith Margaret's hand, with six-year-old Sunday Rose walking close beside them.

Sunday Rose and Faith Margaret had both donned matching blue and purple dresses, each with a shiny pair of shoes to match. Urban had looked vibrant and happy in the company of his girls and likely misses them now that he's left them behind at their home in Nashville, Tenn.

Urban is in Los Angeles this week to continue filming Fox's American Idol, where he serves as one of the judges.

Though the star often travels in the company of his, actress Nicole Kidman, and their daughters, the singer was definitely by himself as he hopped into a car outside the airport on his way to the set.

So when will they reunite? Could it be soon?

It's uncertain how long the singer expects to stay away from his kids, but one thing's for certain: He's definitely looking forward to their reunion.

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