|Distance||188 miles (303 km)|
|Train frequency||12 a day|
|Direct train||Yes, there are 12 direct trains a day|
Trains from Philadelphia to Groton, CT cover the 188 miles (303 km) long journey taking on average 4 h 29 min with our travel partners like. Normally, there are 12 trains operating per day, including direct services available.
Here are some other resources that might have the information you need