Originally Posted by
SPN Lifer
Because the stay has exceeded the maximum, the already-flown segment must be re-calculated at a new (higher) fare basis, for which the new stay is permissible under the fare rules.
So the former ~$480 value of the return ticket is most assuredly not the current remaining value of the ticket on the new date.
Sorry that I wasn’t clear. The stay has not yet exceeded the maximum. The return flight is currently scheduled for next week, which is within the maximum allowed stay. However, his preferred return date would be beyond the maximum allowed stay.