Yes, the MBTA Red Line is heavily used and generally safe during operating hours.

How long does it take?

The train ride between Kendall/MIT and Park Street takes about 12 minutes.

Yes, walking across the Longfellow Bridge takes about 30 to 40 minutes.

Yes, several bus routes cross the river, but the subway is faster.

A single subway ride costs $2.40 with a CharlieCard.

Cambridge

Boston

Train

Cambridge to Boston

Updated: 28 May 2026

The journey from Cambridge to Boston spans approximately 5 kilometers across the Charles River. The most efficient method is the MBTA Red Line subway, connecting Kendall/MIT to Park Street in under 15 minutes. Alternatively, you can cycle across the Longfellow Bridge for scenic views of the Esplanade. Traffic on the Mass Ave Bridge can be heavy during rush hours. This short transit connects the academic hub of Cambridge to the historic downtown core of Boston.

Total Distance: 5 km driving, 4 km air distance.

Fastest Way

MBTA Red Line subway taking 12 minutes.

Cheapest Way

MBTA Red Line subway at $2.40 per ride.

Compare Cambridge to Boston Routes

Train

Direct

Duration

12 mins

Avg Price

$2.40

Operator

MBTA

Route

Red Line from Kendall/MIT to Park Street.

Use a CharlieCard for the lowest fare.

Travel Tips

CharlieCard
Purchase a reusable CharlieCard at any station kiosk to save on fares.
Rush Hour
Avoid traveling between 8:00 AM and 9:30 AM to escape peak commuter crowds.
Walking
Walking across the Longfellow Bridge is a great way to see the city architecture.
Apps
Download the Transit app for real-time arrival updates on trains and buses.
Biking
Bluebikes stations are located throughout both cities for easy short-term rentals.

Safety Tips

Platform Safety
Stand behind the yellow tactile strip while waiting for the train.
Late Night
Stay in well-lit areas when walking from stations at night.
Personal Belongings
Keep your bag in front of you in crowded subway cars.
Emergency
Use the emergency intercoms located on subway platforms if you feel unsafe.