How much do airlines charge for changing your flight back to one week earlier?

Approx. one week. I'm going on to visit family with my mom and cousin, and its for a month and a week, and we dont get back to very close to the time school starts. I dont want my whole summer to be spent in a village, which is basically where I'll be :/ I'd like to go home at least a week earlier, how much would that cost?How much do airlines charge for changing your flight back to one week earlier?
It depends on which airliners you choose, some are free and some charge you from a couple hundred to a few hundred because your fixing your schedule and messing they're seating up.How much do airlines charge for changing your flight back to one week earlier?
Depends on the airline. But it can cost up to $150 plus the difference in fare.
It does depend on the specific airline and also how much the ticket cost. Some tickets, depending on how low the fare was, aren't changeable at all. Others are fully flexible and you can call daily to get it changed. Most airlines charge up to $250 plus the difference in fare if applicable to make changes to a ticket.