From the current rules,
The "pumpkin" rule:
Code:
NOTE -
ITINERARIES MAY BE REBOOKED UP TO ONE YEAR FROM
ORIGINAL TICKET ISSUE DATE PROVIDED THE PASSENGER
CANCELS THE TICKETED FLIGHT RESERVATION PRIOR TO
TICKETED DEPARTURE TIME. IF THE TICKETED FLIGHT
RESERVATION IS NOT CANCELLED PRIOR TO TICKETED
DEPARTURE TIME REBOOKING IS NOT PERMITTED AND THE
TICKET HAS NO VALUE.
Standby rule:
Code:
3.PRIOR TO TICKETED DEPARTURE TIME
PASSENGERS HOLDING CONFIRMED RESERVATIONS AND
TICKETS MAY STANDBY ON NONSTOP AND/OR
CONNECTING CO FLIGHTS ON THE SAME DAY AND
BETWEEN THE SAME ORIGIN AND DESTINATION
AIPORTS. PASSENGERS MAY STANDBY ON SAME DAY
FLIGHTS AFTER THEIR TICKETED DEPARTURE TIME
ONLY IF THEY HAVE CANCELLED THEIR RESERVATION
PRIOR TO THE TICKETED DEPARTURE TIME.
Obviously the airport agents have some discretion, but the rules are pretty clear. A grumpy dude behind the ticket counter could ruin your day.
