Dallas - Airlines now get one-fourth of their revenue from fees, and one of the biggest is a charge of up to $200 to change or cancel a ticket.

The fee galls consumers who find themselves with an unexpected need to change their travel plans. In some cases, the fee is more than the price they paid for the ticket.

When all the receipts are counted, it is likely that consumers paid the airlines more than $3 billion in fees to cancel or change a flight in 2015. That is triple what they paid in change fees in 2007.

Avoiding these hefty fees will take a bit of planning before you book your flight. Once you pay for the ticket, you’re at the mercy of the airline. Experts have some tips:... Read More: VIN