I say day. Safety issue with falling asleep. We actually drive at night. But My DH works the overnight shift, so he is able to drive all night. He is used to staying awake and alert during those times. Since he works night, he sleeps the day we leave, and I try to get everything packed and loaded, get the house ready then wake him up for a shower and off we go. Then I try to stay awake with him, to give directions until we get to a highway we will be on for a long stretch. Once we get to 95 I doze. Usually stop early for breakfast then continue. I usually try to schedule a night at a motel, that we get to anytime after breakfast until about noon. Then we check in, have lunch (I pack stuff), DH sleeps, and I take the kids to the pool. Hang out there until dinner. Go get DH, eat, more swimming, then early bed. This works for to reasons: One, I am dragging by then, and two, it puts DH back on a sleep at night/awake during the day schedule. If we do have anymore driving, we get up the next morning and drive to our destination. DH usually drives the whole trip, he gets carsick and loves to drive long stretches. We have been doing it this way for the past few years with stopping at a motel. It adds a day, but before, it used to take DH 2 days to recover from the drive. Now he is able to enjoy "the whole" vacation.
Now, about that plane. We drove to Disney from Pittsburgh, the first time we went. We swore we would never drive that again. This time we flew. Only 2 Hours!! Loved it. DH didn't like the flight. Was a good flight, but he has always had problems with his ears. The altitude and pressure on his eardrums. So he was in pain for a couple days after the flights, each way.

He is back to wanting to drive next time.

So, he can drive and I will fly. The DD's can decide what they want to do, ride or fly.
Check the flights at surrounding airports. You may have to drive a little ways to get there, and back but it might be worth it for a good price. Check Columbus, or even Pittsburgh. Not sure wyou would dive that far for a plane ticket, but I got 4 tickets with Airtran during "primetime for flights"(8am flight, 10:15 arrival, non-stop both ways on Fridays) for $500 total, for 4. That was tickets both ways, taxes, and all fees etc. To me, it was worth it. Now with gas so high, probably cheaper.
JMHO
