Cathay Group exceeded the 100,000-passenger mark on eight days during the year-end travel peak.
The landmark marked the completion of a two-year recovery from the pandemic.
Sister airlines Cathay Pacific and HK Express carried a combined total of 100,856 passengers on December 15, the most on a single day since the start of its rebuild.
The group went on to surpass the 100,000-passenger mark on a total of eight days before the end of the year.
Together Cathay Pacific and HK Express will have reached 100% of pre-pandemic flights from January 2025.
The two airlines are projected to operate passenger services to 100 destinations around the world this year.
Cathay Group chief executive Ronald Lam said: “We are thrilled to have concluded the year 2024 on a high note with yet another milestone.
“The past year saw unprecedented progress and expansion for the Cathay Group, thanks to our people’s dedication and efforts.
“In particular, I would like to extend my heartfelt thanks to our global frontline teams, who have been working tirelessly over the holiday period to ensure that our customers enjoy a smooth journey as they explore new destinations or reunite with their friends and families during the holidays.
“We are pleased to have successfully completed our two-year rebuilding journey, during which we were firmly focused on adding more flights and destinations for our customers and our home hub. A new chapter has now begun for Cathay.”
Cathay Pacific recently resumed a seasonal service to Cairns, Australia from Hong Kong and will start several long-haul routes in 2025, including Hyderabad, Dallas, Munich and Brussels. In addition, HK Express added Shizuoka, Japan to its network and starts a new service to Sendai, Japan later this month.