Thanks Mike!
Fair enough. What a silly question lol

Incidentally, how do you guys find the lowest fare on AA.com?
I'm planning to go to Los Angeles and London for summer break(from now until the end of Aug.) and I've found the lowest fare, as of today, $330 to LA and $800 to London by using the dates flex option. But the problematic thing is my instinct tells me that the fares can be changed and cheaper as time goes on!
Would you tell me, please, whether I ought to buy tickets now?

How come JFK-LHR is always costly