Finally, if you need to Qatar airways modify bookings, you can log into your Qatar Airways account. Once logged in, you can select the ‘Manage Booking’ option and then select the ‘Modify Booking’ option. From here, you’ll be able to make any necessary changes to your booking. For further information on how to change flight on Qatar Airways, dial Qatar airway’s customer care number at OTA: +1-866-901-7017. Changing your flight date with Qatar Airways is easy if you follow the steps above. Whether you choose to do it online, over the phone, or by modifying your booking, you’ll be able to make the changes you need in no time.