Order number has been discontinued beginning with flights departing April 12, 2023.
Order Number is an 8 or 12 digit unique number issued for each passenger* after the domestic flight ticket is purchased. Order Number is one of the authentication codes for verifying the holder's rights of boarding the flight, making changes or refunding the e-ticket. Order Numbers for all passengers will be required for the ticket change or refund.
The digit of Order Number depends on the services that you have used.