It's easy to avoid the DE/MD toll (which is $4 each way) with a slight detour by the U. of Delaware exit in Newark.
However, it's harder avoiding the toll that is by the Susquehanna River (by the Cecil/Harford county line). That is $5 but it's just one-way northbound.
People in SE PA don't have to worry about PA to DE tolls by just staying on I-95 and not going on the Del Mem Bridge.
From Balt County MD to the western suburbs of Philadelphia (e.g. towns like Drexel Hill PA), it's possible to take US-1 up, and avoid the $5 toll but I think it's a longer more tedious way to do so just to avoid the $5 toll.
And, with a final destination most places in NJ, it makes even less sense to take roads like US-1 or I-83. The Del Mem Bridge toll ($3 southbound) if in Southern NJ, and the Susquehanna toll ($5 northbound) are pretty much unavoidable, but most of the other tolls can be avoided.
Last edited by rtalk25; Dec 15, 2010 at 3:59 pm