It's a correct and valid answer -- that's for sure. Just not very helpful. The problem I have with such non-answering answers is that they can be applied to many air-travel questions.
Problems with toddlers? Get a private jet.
Too little luggage on the flight? Get a private jet.
Inconvenient transfers? Get a private jet.
.. and many more.
You probably see where I'm going with this. Travel-SE is supposed to be helpful towards its users. Put yourself in OP's shoes and see how you will react to such an answer if you are a first-time user. Would you come back and answer another question that you might have? Unlikely, if you are met with such "help" the first time around.
Allowing such answers implicitly says they are okay, which may (or may not -- I'm not willing to test this theory) lead to many more in the future, citing as precedent this particular answer.
In case it's not obvious, it was me who deleted the post.
Edit: It seems many people disagree with my decision, and it is your prerogative as a community to question moderators' actions. For those of you who disagree, I suggest flagging the question to ask for the post be undeleted, and explaining your reasoning. I will not take any action with such flags, and if another moderator disagrees with my decision, I'm sure they will undelete the post.
Edit 2: After some discussion with the post author, they agreed to edit and expand it so it doesn't sound so sarcastic (which I'm sure wasn't the intention in the first place). The answer is now undeleted.