- Most people don't fly often enough to justify Statistics significance (I for one only flied maybe less than 10 flights in my whole life)
- One flight is going to cover a huge amount of mileage anyway
Edit: Just realized that issue 1 is not an issue, we are going to do an average here anyway, so not individual.
Is there actual reason to think they are less safe per hour of time being spend in them as OP claimed?
By these metrics commercial flying isn't as safe as you think.
Furthest you can go in a straight land on land is about 7000 miles :).