I recently learned that if you have to fly on short notice due to a medical emergency or a funeral, there is something called a “bereavement fare” or “compassion fare”. The rules differ between all the airlines, but basically if you qualify you get around 50% off the highest non-restricted airfare available. You’ll need to call each airline directly for details. These full fares can be extremely high, and even at half-off still way more than what you would get at a site like Expedia.com. The main benefit to these fares is that you can usually change your arrival and departure dates much more easily and without penalty fees. Here is a good article at SmarterLiving that goes into more detail ...