Allentown to Chelmsford, Massachusetts: Road Trip Guide & Distance

How far is Allentown from Chelmsford, Massachusetts?

The distance from Allentown to Chelmsford, Massachusetts is 253.5 miles (408 km) as the crow flies. Chelmsford, Massachusetts is located NE of Allentown. By car, the driving distance is approximately 316.9 miles, taking about 6h 23min. A direct flight would take roughly 1h 1min. Both are located in United States — Allentown in Pennsylvania and Chelmsford, Massachusetts in Massachusetts.

For a drive of this length, it's recommended to plan at least one quick rest stop to stretch your legs and grab a coffee. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility.

Coordinates come from public place data for Allentown and Chelmsford, Massachusetts. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.