I’ve never tried a plane trip and honestly would hesitate to unless your bunnies were very tolerant of travel and could be in the cabin with you. But that’s just me.
On a more reassuring note, I’ve had surprisingly good luck moving my two travel-averse bunnies via long drives! We had to move from Chicago to DC and made the trip in a U-Haul (with them in their carrier next to me in the cab). We did it in two days with frequent stops for water/food for them, since they were generally too nervous to eat/drink with the truck moving, and I got a pet-friendly hotel for the overnight and brought in some of their favorite things (hidey houses, litterboxes of course, a couple toys). And packed their normal dinner ingredients. You can also give them wet greens in their carrier in case they’ll eat them during the drive.
This went so much better than I thought it would! I was so nervous about moving them so far that I was even considering for a minute if I should rehome them instead (!!). They always got super stressed out just driving to the vet and I wasn’t sure they could survive the trip. But breaking up the drive and doing lots of stops, they actually did great! I don’t even think they got much stasis to speak of. So if driving is an option for wherever you pick, that could work out well! Best of luck to you.