Hey everybody! I'm planning my first ever road trip for next spring sometime. I'm not going anywhere in particular, just mainly doing a big loop. My original intinerary was to leave my home in Rhode Island and head west. Drive down to Philadelphia and take the PA turnpike to Pittsburgh. After that, take I-70 west to St. Louis. From there, I-29 north to Lincoln, NE and south on I-35 to Dallas. From there, east I-20 to South Carolina and then I-95 north back to Rhode Island. I had budgeted 10 days for this trip.

From talking to a few people, I'm getting the idea that taking the US highways would be more fun. Particularly jumping on US-50 west bound in West Virginia after getting off the turnpike in the Pittsburgh area, and taking that all the way to Kansas City, still trek north on I-29, south on maybe US-75, take the old route 66 from Tulsa to OKC, and then once I get to Dallas, taking US-80 eastbound and perhaps a US highway northbound up the east coast.

Like I mentioned, I'm budgeting 10 days. I think I can stretch it to 12. Can anyone approximate with some certainty how long a trip like this may take (Interstate vs. US highways)? Thanks!