I agree–as I usually do–with cigroller.
Unless you are someone who really likes to gamble, I would suggest that you get things sorted out with that trans before taking it on a road trip. Being able to select a local, independent trans shop
(NOT a chain operation like AAMCO, Lee Myles, Cottman, or Mr. Transmission), based on recommendations from friends, neighbors, relatives and co-workers is far better than having to rely on whatever unknown trans shops might be available when you break down on the highway.
And, as cigroller pointed out, Honda has been “working” with owners of these defective transmissions, so it might be a good idea to begin at a well-reputed Honda dealership. If they can’t help you with the cost of trans repairs, then you can go to an indy shop–which would most likely be cheaper than a non-discounted price at the dealership.