My FI and I are going to a wedding next month. We are both friends with the other couple but he is closer with the groom then I am with the bride. I called today to book our hotel (it is over an hour away) at their recommended place. The cheapest room is $200/night with a 2 night minimum +fees (not in our budget because we are buying a house and getting married ourselves). It is not in a location where there would be other things to do for the weekend. Even if we booked both nights we couldn't stay both because of other obligations. I called one of our friends to see if we could possibly share a room but haven't heard back.
I looked into other hotels but the ones without the minimum are run down motels. From the beginning my FI has said all he wants to do is go to the ceremony and dinner and leave shortly after saying congrats because he isn't as close with them anymore and doesn't want to go. I told him that it was rude to do that. Now I am wondering how long would we have to stay at the wedding without being rude when we left?
Re: wedding guest etiquette
Most traditionally it is "safe" to leave a reception after the cake is cut. There is nothing wrong with your FI's plan.
Honestly, bride & groom will probably be too busy to really even notice or care, especially if it's a larger wedding with a lot of other guests. But, if it were me, I would just be happy that you came. And I wouldn't be upset at all if you said you had other obligations and couldn't stay late. Now, if you came just for dinner, but didn't come to ceremony, I may be a bit upset. But, to me, I think it would be okay to go to ceremony & dinner, then leave shortly after. I was at a wedding over the weekend where a few guests left within 1/2 hour after dinner because they had long drives home. And several left about an hour or two after dinner, rather than staying late.
And personally, for me, an hour a way is definitely not "stay overnight" territory for me, let alone two nights. That's well within the realm of single day trip territory. Most of the reception "events" are usually done within the first hour and a half of the reception (not including cocktail hour, if they are having one). The order of it will vary though. They'll probably have a program where you can figure out when the best time to leave is.
IMO, the "must attend" portions are ceremony, receiving line, dinner, and cake cutting. Some will argue first dance as well. Once you've seen those, feel free to head home.