Even if the % of control you personally have is small, as long as it's > 0%, you feel like you're in control of the situation. In a plane, it's 0%.
The chances of your plane running into another plane piloted by a drunk is pretty slim in comparison.
I also have almost no fear of being in a car wreck because I still find it highly unlikely a wreck would kill or seriously injure me. I have a safe car and have lost (and regained!) control of cars plenty of times in my life without incident. Hell, I even choose to race cars in circle for fun! I only fly because I HAVE to.
Motorcycles obviously feel more dangerous to me and I have greater reservations whenever I ride one.
Ironically, I am posting this from a UA flight.
I was once on a flight that lost an engine. That was fun. We took a "normal single-engined" tour of LA, and a "normal single-engined landing" 45 minutes later. The lack of concern was both reassuring and terrifying. I expected the pilots to spin the plane on a dime and drop it back down the runway the same way we came, emergency landing, rather than keep the thing flying on one engine.
Your ability to influence outcome in a plane accident are minuscule but they do technically exist.
Here's a list of things you can do to increase your personal safety while flying:
* Sit as close as possible to an emergency exit.
* RTF(safety)M
* Know how to assume a brace position, including ideally the particular brace position which is optimal for your body shape/size in your given seat.
* If you're particularly paranoid like me, you can preemptively assume the brace position on takeoff and final approach/landing. Full disclosure: I don't have any evidence that this is beneficial and people may think you're crazy, so there's that, but it makes me feel better.
* Wear sneakers and keep them on or at least in reach at all times.
* Wear layers, preferably made from less flammable materials.
* Don't be intoxicated. I break this rule by having some drinks to ease my anxiety, but the point is to not get to anywhere near the point of incapacitation.
Traffic fatalities do occur to people who were not 'at-fault', and despite there being lots of good statistics on driving accidents [1][2], I can't any good ones on the ratio of serious injury or death for non-"at-fault" drivers vs. at-fault ones.
Meanwhile, it would be illuminating to interview people who never drive themselves -- rather, they are always passengers -- whether they feel safer being driven, vs. flying, and the like.
[1] https://crashstats.nhtsa.dot.gov/#/ [2] http://www.iii.org/issue-update/auto-crashes