Originally Posted by tanstaafl
Woodcrest station would be the closest one to the turnpike /295.
This would be my recommendation. Get off the Turnpike at Exit 4, take Route 73 North for about 1/2 mile, and jump onto I295 South. Note, when you exit the turnpike onto 73 North, you'll be in the rightmost lane - you want to move over to the 2nd lane fairly quickly, after the light the right lane turns into an exit only onto I295 North. You'll take I295 South for 5 miles to Exit 31, that will put you right at the Woodcrest PATCO station. It's about 20 minutes on the train, I think it's $2.75 each way (I have a swipe card and just never pay attention to the amount).
The link above will give you the schedule. Enjoy!
(Oh, when you're ready to resume your travels, when you leave the station just get back on 295 south. At this end of the state, it parallels the turnpike and will take you right to the DE Memorial Bridge. No tolls on 295.)