Passengers of Qantas and Virgin America had difficulties checking in this weekend after the system supporting both airlines experienced problems.
The Amadeus ALTEA platform went awry briefly on Sunday morning, causing queues for Qantas passengers trying to check in for flights around the worldwide.
The outage also hit passengers on Virgin Australia's international flights.
It is the second time in the space of six months that Qantas has been on the receiving end of technical problems after a widespread incident in January this year with ALTEA system.
In a statement, Amadeus confirms the problems with the ALTEA system and says it is investigating the cause of the crash and will "take any appropriate steps to avoid this reoccurring".
In an unrelated incident, Room 77 was one of a number of websites across many industries on the receiving end of problems which hit Amazon-owned cloud-hosting services.
The hotel search service, alongside other web brands such as Pinterest and Netflix, was taken out when a powerful electrical storm affected a data centre belonging to Amazon in the Washington DC area of the US.
A Room 77 statement says:
"We are taking several measures to ensure that this does not happen again. For example, we will be investing in greater data center redundancy across geographical regions, improving monitoring and alert systems, and providing better customer support."