via I-95
The drive from Boston to Portsmouth Nh takes approximately 1h 6min, covering 61 miles via I-95. Under normal conditions, expect to spend around $7 on gas.
Travel time can vary — during peak hours, weekends, or holidays, the journey may take 2–3+ hours. For the fastest trip, leave early morning (before 7 AM) or travel on weekday evenings.
Traffic is usually worst during weekday rush hours (7–9 AM, 4–7 PM) and holiday weekends.
For this shorter drive, the best time to go is mid-morning (9-11 am). Rush hour (7-9 AM and 4-7 PM) can add significant time on this route. Weekends are generally smoother unless it's a holiday.
One of the busiest highways on the East Coast. Expect congestion near major cities like New York, Philadelphia, and Washington DC.
This trip can typically be done on a single tank of gas.
Planning a trip from Boston to Portsmouth NH? The most common route runs along I-95, covering 61 miles in about 1h 6min. Gas will set you back roughly $7 for the one-way trip. For the best experience, hit the road during mid-morning (9-11 am) when traffic is lightest.
Covering only 61 miles, this quick trip is ideal for a day outing. Most drivers find the route straightforward, with no need for rest stops unless you prefer a leisurely pace.