in General The longest non-stop commercial flight… by Chirag Chauhan May 1, 2018, 8:52 pm 24 Views The longest non-stop commercial flight was 18 hours and 50 minutes long. It went from Singapore to Newark. FlightSingapore to Newark Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website By using this form you agree with the storage and handling of your data by this website. *