Is the airline liable for a maintenance cancellation?

The word maintenance does not settle responsibility. Ask what failed, when it was discovered and what reasonable measures the airline took; the legal test depends on the jurisdiction.

What to check

Start with the airline’s notice, the original schedule, and when you actually reached your final destination. A departure delay and an arrival delay can lead to different answers.

What to do next

Ask the operating airline for its written reason. The rule checker can point you to the conditions worth reviewing.

Official sources

• Court of Justice / EUR-Lex: van der Lans C-257/14
• Korea Consumer Agency: Korea Consumer Agency Published Decision 1001871627
• European Union / Your Europe: Air passenger rights