Malaysia Airlines will change over to a new passenger reservations system on the weekend of 10 June 2017. This new technology will enable Malaysia Airlines to meet passengers’ changing travel needs.
Ticket purchases, any changes to existing tickets, and online check-ins will be unavailable for 9 hours from 9pm on 10th June until 6am on 11th June.
Flight schedules will not be affected by the transition.
Do note the important information below:
Source: Malaysia Airlines