Man, it's tough duty when your wife's father passes. The hospitals grief counselor will be a great help, if he was a church going man his pastor will be a great help too. Most airlines will extend a pretty deep discount for bereavement travel; I've had to use that more than once. I'm in the cremation camp, too, because that allows time to gather family and friends for a memorial and you don't have to rush.
You need to be with her when she starts going through his personal things, she'll need the support as it alternates between poignant and traumatic. And, expect it to be messy, even the best laid plans have unseen flaws. Hang in there man, you're going to be her strength. We'll be here for you.
