My father just passed away early last month.
I did not go to the funeral; in fact I was told by my mother not to come because she had enough to worry about in terms of dealing with funeral arrangements, finances, etc. that she didn't want to have to worry about me flying on a plane over the Atlantic.
My feeling (and my family's) is that the relationship you had with someone when they were alive is much more important than what happens at their funeral.
In retrospect, with all that was going on around that time regarding terrorist threats/security at airports, it was probably a good thing that I stayed here.
Because I didn't get the chance to go to a funeral and get my thoughts out of the way that way, for the first couple of weeks I would just give myself about 15 to 30 minutes of quiet time in bed every night to just think about things. That way I could function normally the rest of the day.
My husband spoke to my father a few times on the phone, but has never met him, or anyone else in my family, in person. He did say, after my father died, when he was speaking to my mother that he felt sad when she didn't put my father on to speak to him afterwards, which is what she often did.
Other than that, my husband just gave me hugs. That's really all I needed.
Of course, that's just my experience. Everyone is different.
(To clarify, for those who don't know me, my husband and I are in the UK, my family is in the US).