How long is the drive?

It typically takes about 3 hours and 45 minutes.

No direct train service exists between Groton and Portland.

Yes, there are tolls on I-95 in several states.

What is the best highway?

Interstate 95 North is the primary route.

Is it a scenic drive?

Yes, especially as you approach Maine.

Groton

Portland

Driving

Groton to Portland

Updated: 28 May 2026

The drive from Groton to Portland is a long journey heading north through Connecticut, Rhode Island, Massachusetts, and New Hampshire into Maine. The most direct route is via I-95 North. The trip covers approximately 300 kilometers and typically takes about 3.5 to 4 hours. You will pass through several major cities, including Providence and Boston, which can be points of congestion. This route is a major artery for travel along the New England coast. It is a straightforward drive with plenty of service options along the way.

Total Distance: 300 km driving, 260 km air distance.

Fastest Way

Driving via I-95 North is the fastest and most reliable route.

Cheapest Way

Driving your own vehicle is the most cost-effective way to reach Portland.

Compare Groton to Portland Routes

Driving

Direct

Duration

3 hours 45 mins

Avg Price

$50-$70 in fuel

Operator

Personal Vehicle

Route

I-95 North through Providence, Boston, and Portsmouth.

The I-95 corridor through Boston can be very busy during rush hour.

Travel Tips

Traffic
Avoid the I-95 corridor through Boston during peak hours.
Parking
Portland has several parking garages near the Old Port area.
Navigation
Use GPS to navigate the busy highway system.
Rest Stops
There are many service plazas along I-95 in all the states you will pass through.
Timing
The drive is very consistent, but check for road work on I-95.