Hello
Which way would be the "best" to drive to WDW in July?
There is only 1 hour difference between I77 through Buffalo and I75 via Detroit (as per google maps).
I'm looking more for which would have less traffic/construction.
Also are most I series highways 70mph?
thanks
mark
First of all

to the DISBoards.
I-75 is the easiest route, there is a lot more small town, rest areas to stop over night. But it is definitely longer, and it really feels it especially driving through Georgia.
I-77/I-79 route through Buffalo is shorter (and I personally prefer it), and more direct. It's also quite mountainy at spots. With rough winter weather, I would avoid this route. There are not as many places to stop as I-75, but you will likely only stop 1 or 2 nights, so you will definitely find somewhere.
Traffic: Cincinnati and Atlanta are bottlenecks down 1-75, Pittsburgh and Charlotte NC on I-77.
Construction: Any given day both routes may have lane closures. Not enough difference to really influence the trip.
As for speed limit... both routes have ups and downs. It's NOT always 70 on either.
I-75 you HAVE to watch your speed through Georgia (about 500 miles).
I-79 / I-77 there is a stretch of about 100 miles that connects I-79 to I-77, it is HWY 19, speed limit drops there, and you really have to watch it there as well.
I would make my choice based on time of year and weather.
Good Weather = I-79 / I-77
Poor Weather = I-75
In either case, drive with care and caution, and be safe.
