OK to board is an airline requirement that is required to board your flight to the Emirates. The very first step, in order to visit the ok to board Emirates, is obviously to Apply Emirates Visa. Once your Emirates Visa is approved and is granted to you, it is shared with the airline authorities, with whom you have booked your flight tickets. The airline further scans your Emirates Visa and if no objections are raised, then they mark OK to Board on your flight PNR. Emirates Ok to Board is a process where passengers traveling to certain countries must have their visa and other travel documents checked and approved by the airline before they are allowed to board the flight. The OTB process is mandatory for travelers from certain countries, such as India and Pakistan, who are traveling to the UAE, Qatar, Oman, and Kuwait, among others.