South Station to Boston Public Library
The T route from South Station to Boston Public Library: where to board, where to change, where to get off and how late it runs.
South Station to Boston Public Library
- Red Line
- Green Line
- Take the Red LineFrom South Station, toward Alewife2 stops, about 3 min
- Change at Park Street
- Take any Green Line train3 stops, about 7 min
- Get off at CopleyThe stop after Arlington
- Walk about 4 min to Boston Public LibraryUse the Boylston St exit
Weekdays, fall 2026 schedule · First and last trips
Quick answer: Take the Red Line toward Alewife to Park Street, then any Green Line train to Copley, and walk about 4 min. The trip takes about 20 minutes. On weekdays the Red Line runs every 5 min during the day. Walking takes about 28 minutes, so on a nice day you may not need the T at all.
Get the live route from South Station to the BPL
Step by step
- At South Station, take the Red Line toward Alewife.
- Ride 2 stops, about 3 min, through Downtown Crossing, and get off at Park Street.
- At Park Street, change to any Green Line train.
- Ride 3 stops, about 7 min, through Boylston and Arlington, and get off at Copley.
- Walk about 4 min to Boston Public Library. Use the Boylston St exit.
Other ways to go
- Take the Providence/Stoughton Line toward Stoughton to Back Bay, and walk about 8 min: about 13 min.
- Take the Framingham/Worcester Line toward Framingham to Back Bay, and walk about 6 min: about 12 min.
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
| Day | First trip | Last trip | How often (daytime) | Trip time |
|---|---|---|---|---|
| Monday-Thursday | 4:20 am | 1:13 am | Every 5 min | About 20 min |
| Friday | 4:20 am | 2:07 am | Every 5 min | About 20 min |
| Saturday | 5:00 am | 2:01 am | Every 6 min | About 21 min |
| Sunday | 5:00 am | 12:59 am | Every 6 min | About 21 min |
First and last trip are when the first train of the trip leaves South Station, on the fall 2026 schedule. "How often" is for the Red Line (the least frequent part of the trip).
Late at night
On weekdays, the last trip that works leaves South Station at 1:13 am and gets to Boston Public Library around 1:23 am, using Green Line. On Friday nights it runs later: the last trip leaves at 2:07 am. On Saturday nights the last trip leaves at 2:01 am, and on Sunday nights at 12:59 am. Late at night, ask Cobblehop for the last trip. It checks live times and tells you when to leave.
Tips for this trip
- Know your stop. Get to the door after Arlington. The next stop is Copley. Start a live trip in Cobblehop and it alerts you before your stop.
- Changing at Park Street. You don't leave the station. Follow the signs for any Green Line.
- The Central Library faces Copley Square. The McKim Building entrance is on Dartmouth Street.
- South Station has the Red Line and Silver Line underground, Commuter Rail and Amtrak on the main concourse, and the intercity bus terminal upstairs next door.
Step-free access
MBTA data lists every station on this route (South Station, Park Street and Copley) 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
- Subway. $2.40 one way. Changing between subway lines is free.
- How to pay. Tap a contactless credit or debit card, phone or watch at the fare gate or bus door, or use a CharlieCard or CharlieTicket.
- Kids. Children 11 and under ride the MBTA free.
Fares as of October 2026. Check the MBTA's fares page before you ride.
South Station to Boston Public Library: common questions
How do I get from South Station to Boston Public Library by public transit?
Take the Red Line toward Alewife to Park Street, then any Green Line train to Copley, and walk about 4 min. The trip takes about 20 minutes.
How long does it take to get from South Station to Boston Public Library?
About 20 minutes on the main route. Walking takes about 28 minutes.
Do I have to change along the way?
Yes, once: at Park Street. Take the Red Line toward Alewife to Park Street, then any Green Line train to Copley, and walk about 4 min.
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 South Station to Boston Public Library?
On weekdays, the last trip that works leaves South Station at 1:13 am and gets to Boston Public Library around 1:23 am, using Green Line. On Friday nights it runs later: the last trip leaves at 2:07 am. On Saturday nights the last trip leaves at 2:01 am, and on Sunday nights at 12:59 am.
Related routes
- South Station to Copley Square
- South Station to Back Bay Station
- North Station to Boston Public Library
- Logan Airport to Boston Public Library
- Never miss your stop (guide)
More routes from South Station
- South Station to Prudential Center
- South Station to Hatch Shell
- South Station to Berklee College of Music
- South Station to Symphony Hall
- South Station to South End
- All routes from South Station
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:
- MBTA: Red Line
- MBTA: Green Line
- MBTA: South Station station
- MBTA: Park Street station
- MBTA: Copley station
- MBTA: fares
- MBTA: elevator and accessibility alerts
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.
Leaving now? Cobblehop gives you one clear plan with live times and alerts you before your stop. No sign-up, nothing to install.