A tourist accused of becoming violent because he couldn't do yoga on a plane is pleading guilty to interfering with a flight crew.

Hyongtae Pae pleaded guilty Thursday in federal court in Honolulu.

Pae was headed home to South Korea after a Hawaii vacation to celebrate his 40th wedding anniversary when his actions last month forced the pilot to turn the plane around. Court documents say he didn't want to sit in his seat during the meal service, so he went to the back of the plane to do yoga and meditate. Authorities say he refused to return to his seat, threatened crew members and shoved his wife.

He's expected to be sentenced to time served, which was about 12 days. He must also pay $43,600 restitution to United Airlines.