Some airlines offer free changes for certain fare classes, particularly for more flexible or refundable tickets. However, most discounted or non-refundable tickets typically incur change fees, and the difference in fare may also apply.To check if you can change your flight for free, go to "My Trips" on Expedia’s website or app. There, you can see your flight details and any options available for changes. If your ticket allows for a change without a fee, you can modify the flight; otherwise, you may need to pay the associated costs. Always review the terms before booking for flexibility.