Originally Posted by
sbm12
Yup, which is why the DOT data linked above matters for comparison.
Nope. No one can answer OP's question on the basis of the published DOT data cited in this thread (and your post) b/c it doesn't break out mx. Carrier caused will include causes other than mx.
Originally Posted by
sbm12
Many people book travel with the expectation of safely getting from A to B at the advertised times.
Perhaps. From a safety perspective, I personally would rather fly UA than WN , regardless of their mx cancel percentages. As noted above, WN does have a history of getting busted for flying with unsafe aircraft. So comparing mx cancel rates would not tell you which carrier is "safer."