Originally Posted by
Redhead
I assume you do not have status with the airline. But generally it is around a $150 fee to change the date, plus any difference in fare if the price has gone up. The exact fee varies by airline.
This is generally the fee for changes to domestic USA tickets. For international tickets exUSA, the fees are typically $250 but sometimes $400 to change the dates. Note that if you try to change the date before the outbound journey, the airline is likely to reprice the ticket and make you pay any increase in fare in addition to the change fee. So the OP wouldn't be able to change the return until the fall.