The photo caption on the pics of Harry at the airport on the pic site are hilarious:
EXCLUSIVE: Harry Styles was spotted flying out of NYC after being stuck due to a Snow Storm. The former One Direction singer spent a few days in the Big Apple, attending meetings at Columbia Records and dining at swanky steakhouse, Smith and Wollensky , on the Upper East Side. Harry was in great spirits as he met fans at JFK airport on Wednesday, as he raced to get back to London. Reports have begun to swirl that Liam Payne and Cheryl Fernandez-Versini have given birth to their baby, and could be the reason for Harry's early departure from NY. He carried a duffle bag over his shoulder and gave a Peace sign as he headed into the security checkpoint.
So basically they work in promo for his rumored Columbia solo deal, Smith and Wollensky where he ate twice, the stalker fans he met at the airport, and the Chiam baby. Not to mention, the pics seem to indicate he's at Newark (the EWR on the stanchion), but the caption says JFK.