Https://mechatronics.ucmerced.edu/sites/g/files/ufvvjh1226/f/webform/direct-contact-how-early-can-you-check-in-for-qatar-airways.pdf https://mechatronics.ucmerced.edu/sites/g/files/ufvvjh1226/f/webform/direct-contact-how-early-can-you-check-in-for-qatar-airways.pdf