Most recently, the couple "enjoyed a quiet weekend at her Rhode Island home. Taylor sent her plane to pick up Tom before the weekend," a source tells PEOPLE.
Hiddleston, 35, was photographed departing for New England on Swift's plane Sunday and was pictured arriving in Los Angeles on Tuesday.
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The British actor has been busy with his acting career. He attended a SAG-AFTRA Foundation event in Los Angeles on Aug. 12 and also has been filming Thor: Ragnarok in Australia.
And most notably, Taylor's Watch Hill mansion in Rhode Island was the same place she hosted her star-studded Fourth of July weekend where The Night Manager star mingled with her squad.
This isn't the first time Swift, 26, has provided her private plane for Hiddleston. In June, she chartered a flight to meet her boyfriend's parents in England.