Omegous, I'm sorry to hear about your loss. It's too bad you couldn't be flying under more pleasant circumstances.
Check the individual airlines' websites, as many of them offer special last-minute fares (far below their normal cost) for booking online only. Another option would be to call the different airlines' reservations 800 numbers and asking if they offer a reduced-rate bereavement fare. Most do, although it's typically a reduction off of their unrestricted last-minute published rates, which are quite high.
Just a question, though...why does everyone feel that airlines are mean for not automatically giving people a break on a last-minute airfare because of an emergency or a death in the family? No other businesses do this!
Can you imagine asking the manager of Macy's to give you 50% off on the price of a suit because you're wearing it to a funeral?
"In this present crisis, government is not the solution to our problem - government IS the problem." - Ronald Reagan
Comments made here are my own and are not intended to represent the official position of Alaska Air Group