三大航司：中日航线免费退改签延长至明年3月28日

Group 1 - Major airlines including Air China, China Eastern Airlines, and China Southern Airlines have announced special handling for tickets related to flights to and from Japan, allowing free cancellations and changes for travel until March 28, 2026 [1] - The previous policy for free cancellations and changes was set to end on December 31, 2025 [1]