Cobblehop / Routes / Boston Common to the Seaport

Boston Common to the Seaport

The T route from Boston Common to the Seaport: where to board, where to change, where to get off and how late it runs.

Boston Common to the Seaport

Trip timeabout24min
How oftenEvery 5 min
  • Red Line
  1. Walk about 4 min to Park StreetFrom Boston Common
  2. Take the Red LineToward Braintree2 stops, about 3 min
  3. Get off at South StationThe stop after Downtown Crossing
  4. Walk about 17 min to the SeaportUse the 7 | Summer St exit

Weekdays, fall 2026 schedule · First and last trips

Quick answer: Walk about 4 min to Park Street, then take the Red Line toward Braintree to South Station, and walk about 17 min. The trip takes about 24 minutes. On weekdays the Red Line runs every 5 min during the day.

Get the live route from Boston Common to Seaport

Step by step

  1. From Boston Common, walk about 4 min to Park Street.
  2. At Park Street, take the Red Line toward Braintree.
  3. Ride 2 stops, about 3 min, through Downtown Crossing, and get off at South Station.
  4. Walk about 17 min to the Seaport. Use the 7 | Summer St exit.

Other ways to go

Which one is faster depends on when you leave. Cobblehop compares them with live times and gives you the one that gets you there first.

Times and frequency

DayFirst tripLast tripHow often (daytime)Trip time
Monday-Thursday4:21 am1:09 amEvery 5 minAbout 24 min
Friday4:21 am1:57 amEvery 5 minAbout 24 min
Saturday4:58 am1:58 amEvery 6 minAbout 24 min
Sunday5:30 am1:10 amEvery 6 minAbout 24 min

First and last trip are when the first train of the trip leaves Park Street, on the fall 2026 schedule. "How often" is for the Red Line.

Late at night

On weekdays, the last trip that works leaves Park Street at 1:09 am and gets to the Seaport around 1:30 am, using bus 11. On Friday nights it runs later: the last trip leaves at 1:57 am. On Saturday nights the last trip leaves at 1:58 am, and on Sunday nights at 1:10 am. Late at night, ask Cobblehop for the last trip. It checks live times and tells you when to leave.

Tips for this trip

Step-free access

MBTA data lists every station on this route (Park Street and South Station) as accessible. South Station has 9 elevators in MBTA data. Elevators do break, so check the MBTA's elevator alerts before you go.

What it costs

Fares as of October 2026. Check the MBTA's fares page before you ride.

Boston Common to the Seaport: common questions

How do I get from Boston Common to the Seaport by public transit?

Walk about 4 min to Park Street, then take the Red Line toward Braintree to South Station, and walk about 17 min. The trip takes about 24 minutes.

How long does it take to get from Boston Common to the Seaport?

About 24 minutes on the main route. Walking takes about 32 minutes.

Do I have to change trains?

No. The Red Line goes all the way, so it's one ride.

How often does the Red Line run?

Every 5 min on weekdays during the day, every 6 min on Saturdays and every 6 min on Sundays, on the fall 2026 schedule.

What time is the last train from Boston Common to the Seaport?

On weekdays, the last trip that works leaves Park Street at 1:09 am and gets to the Seaport around 1:30 am, using bus 11. On Friday nights it runs later: the last trip leaves at 1:57 am. On Saturday nights the last trip leaves at 1:58 am, and on Sunday nights at 1:10 am.

More routes from Boston Common

Official sources

Cobblehop is independent and isn't affiliated with these agencies or operators. Schedules on this page come from MBTA/MassDOT public data. Check their pages for the latest schedules and service changes:

Published October 30, 2026. Times were computed from the fall 2026 MBTA schedule (2026-11-04 for weekdays). Service changes, so check Cobblehop for live times before you go.

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