Harrison Ford kisses wife Calista Flockhart on New York City Subway Platform

Harrison Ford and his wife Calista Flockhart are still going strong … because they’re packing on the PDA while packing into a commuter train in the Big Apple.

The “Indiana Jones” star trekked out to New York City to see his wife amid rumors of possible trouble in paradise … and they looked like two lovebirds as they rode the subway.

Harrison and Calista kissed and hugged on the subway platform … then she caught a train to her Off-Broadway play “Curse of the Starving Class,” and he took a separate train to Columbus Circle.

It’s pretty rare to see someone as famous as Harrison riding the NYC subway system … and he even chatted up a fellow straphanger, telling her it had been years since he’s taken the train.

Harrison and Calista have been living on separate coasts — he’s in California and she’s in NY — as she performs her play … but it looks like the distance between them isn’t hurting their marriage … at least based on what we’re seeing here.

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Check out the photos … seems the sparks are still flying, 15 years into their marriage.

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