What is IfOnly's phone number? January 10, 2019 18:31 Updated Follow You may contact IfOnly at 415-376-4640. Feel free to call us during business hours. (9am–6pm PT M-Th, 9am-5pm F) Related articles My experience is in 3 days and I don’t have the details yet, when will I receive them? I received this experience as a gift, how do I schedule it? Comments 0 comments Please sign in to leave a comment.