- When should I buy a ticket, what is the punishment for not buying right now?
Kayak has a "when to buy" feature, but I can't think of anyone else. Microsoft Travel stopped doing it and even then there's was only for US.
- How often is the flight I'm booking delayed? For how long? Airport or Airline fault?
Some Airlines show you the delay/arrival percentage but its not aggregated anywhere AFAICT. Also I believe airplanes have a lot of leeway before a flight is considered "delayed" Also people suggest never to land/fly out of O'Hare in Chicago if possible but is there evidence for this? Would someone outside the US who is not a frequent flyer even know about this?
- How much space does this airline's seat provide?
I'm willing to spend a little more for more space on longer flights...
- Does this plane have power outlets? And not the ones that EmPower plugs, those don't count. I'm looking at you United!
The problem is there's actually very little accurate information except the cost of the flight, and thats what most people choose to pick their flight. Sometimes even willing to take weird layovers/extra stops to do it. If it can be shown that your comfort and stress would be better cared for by purchasing a ticket that cost $50 by next Wednesday.... well no one has done that.