An awkward, reclusive, unusual young man with a wealth of trust fund money strikes up a friend with a hapless anti-obesity crusader who comes knocking on his door for donations.
American Airlines has a whopping $200 change fee on paid fares (other than full fare refundable tickets) for domestic flights, and up to $450 for international flights. Same day changes are $75 in economy and free for business and first class passengers on paid fares.
For travel outside the United States, Canada, Puerto Rico, and the U.S. Virgin Islands, the change fee for Delta-marketed flights is typically $200 to $500, but can vary based on location and type of fare. Changes are usually permitted only to the return portion of an international itinerary.