[Paladin2]

How do airlinesget to vary the price of seats so widely on a given flight?

[Dilbert San Diego]

Not sure what this has to do with the issue of a governor possibly exceeding his authority. Airlines are private businesses and can do variable pricing to try to increase business. Sounds like apples and oranges, not sure what you are getting at.

[Pecos]

Part of it is based on supply and demand. If you buy the seat too close to the flight date, you must want it badly, right? Another part may be the desirability of a given seat. Who wants to sit in the middle of a row? Beyond that, I would only be guessing.

If, OTOH, you are asking how they GET to do so - it's called free enterprise. No one is forcing you to buy that ticket, unlike Obamacare and the IRS.