What is the halacha regarding traveling on airlines that have known security vulnerabilities, especially when safer alternatives exist? Is it considered putting yourself in danger, which is forbidden by the Torah?

The Torah forbids placing oneself in *unnecessary* danger. While flying is statistically safe, halacha dictates choosing a genuinely safer alternative *only if* an airline has *substantiated serious safety problems* and such an option exists. Do not rely on rumors or anxiety; baseless fear is a sin, reflecting a lack of emunah. Take reasonable precautions, trust HaShem, and let halacha, not emotions, guide your decisions.