OP - my hats off to you for making this "demand appearance" work for you and your DH. I don't think I would have been nearly as gracious.
I've heard it is hard to us FF miles to HI. And, the flights for November have porblem been "open" since mid-December. Once you've got the wedding dates nailed down, I would get the flights booked ASAP. And, try to be a little flexible with the dates you are flying, that may help with the availability of FF seats.
I cannot offer any advice...I've not been to HI.
I've heard it is hard to us FF miles to HI. And, the flights for November have porblem been "open" since mid-December. Once you've got the wedding dates nailed down, I would get the flights booked ASAP. And, try to be a little flexible with the dates you are flying, that may help with the availability of FF seats.
I cannot offer any advice...I've not been to HI.