cmculp

For a 1K, what changes are allowed for day of travel?? is it only earlier or 24 hours either way (no change fee + fee difference??) I ask because I hugely sprained my ankle and would do better to ice and elevate it for 24 a day prior to flying. Pushing 12-18 hours would do it, but change fees ($300 as it is a joined itinerary + changes would be tough). My goal is a change from morning to evening.