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"No waiting at the airport for bags, no worry about them getting lost. My colleague seems reasonably pleased," he said.

Baggage fees brought in nearly $2 billion in revenue for the 10 largest airlines that collected them during the first nine months of 2009, according to the Transportation Department.

Standing at a luggage carousel at Pittsburgh International, Harry Kammerer said he's willing to consider shipping bags.

"If a baggage service is available at a comparable price, I would think about using it," said Kammerer of Moon. "Since flights aren't direct anymore, all you do is fool around with your bags."

Baggage-related problems are a major headache for air travelers. Department of Transportation figures from November show that baggage complaints trailed only flight-related problems in garnering the most complaints from the flying public.

"People are creatures of habit when it comes to using the airlines to ship their baggage," Tarshis said. "Those who use our service rave about it -- especially if they are traveling with kids."