South Station to Belle Isle Marsh
How to get from South Station to Belle Isle Marsh on public transit, with the stops, times and the last trip of the night.
South Station to Belle Isle Marsh
- Silver Line SL3
- Blue Line
- Take the Silver Line SL3From South Station, toward Chelsea4 stops, about 12 min
- Change at Airport station
- Take the Blue LineToward Wonderland3 stops, about 6 min
- Get off at Suffolk DownsThe stop after Orient Heights
- Walk about 10 min to Belle Isle MarshUse the Bennington St exit
Weekdays, fall 2026 schedule · First and last trips
Quick answer: Take the Silver Line SL3 to Airport station, then the Blue Line toward Wonderland to Suffolk Downs, and walk about 10 min. The trip takes about 35 minutes (32-37 min depending on the connection). On weekdays the Silver Line SL3 runs every 10 min during the day.
Get the live route from South Station to Belle Isle Marsh
Step by step
- At South Station, take the Silver Line SL3 toward Chelsea.
- Ride 4 stops, about 12 min. Get off at Airport station, the stop after Silver Line Way.
- At Airport station, change to the Blue Line toward Wonderland.
- Ride 3 stops, about 6 min, through Wood Island and Orient Heights, and get off at Suffolk Downs.
- Walk about 10 min to Belle Isle Marsh. Use the Bennington St exit.
Times and frequency
| Day | First trip | Last trip | How often (daytime) | Trip time |
|---|---|---|---|---|
| Monday-Thursday | 5:16 am | 12:54 am | Every 10 min | About 35 min |
| Friday | 5:16 am | 1:53 am | Every 10 min | About 35 min |
| Saturday | 5:28 am | 1:53 am | Every 12 min | About 37 min |
| Sunday | 6:27 am | 12:54 am | About every 15 min | About 38 min |
First and last trip are when the first bus of the trip leaves South Station, on the fall 2026 schedule. "How often" is for the Silver Line SL3 (the least frequent part of the trip).
Late at night
On weekdays, the last trip that works leaves South Station at 12:54 am and gets to Belle Isle Marsh around 1:15 am, using Blue Line. On Friday nights it runs later: the last trip leaves at 1:53 am. On Saturday nights the last trip leaves at 1:53 am, and on Sunday nights at 12:54 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 Orient Heights. The next stop is Suffolk Downs. Start a live trip in Cobblehop and it alerts you before your stop.
- Changing at Airport station. You don't leave the station. Follow the signs for Blue Line toward Wonderland.
- Belle Isle Marsh Reservation is in East Boston, near Suffolk Downs and Beachmont stations.
- 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, Airport and Suffolk Downs) 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 Belle Isle Marsh: common questions
How do I get from South Station to Belle Isle Marsh by public transit?
Take the Silver Line SL3 to Airport station, then the Blue Line toward Wonderland to Suffolk Downs, and walk about 10 min. The trip takes about 35 minutes (32-37 min depending on the connection).
How long does it take to get from South Station to Belle Isle Marsh?
About 35 minutes on the main route, or 32-37 minutes depending on the connection.
Do I have to change along the way?
Yes, once: at Airport station. Take the Silver Line SL3 to Airport station, then the Blue Line toward Wonderland to Suffolk Downs, and walk about 10 min.
How often does the Silver Line SL3 run?
Every 10 min on weekdays during the day, every 12 min on Saturdays and about every 15 min on Sundays, on the fall 2026 schedule.
What time is the last bus from South Station to Belle Isle Marsh?
On weekdays, the last trip that works leaves South Station at 12:54 am and gets to Belle Isle Marsh around 1:15 am, using Blue Line. On Friday nights it runs later: the last trip leaves at 1:53 am. On Saturday nights the last trip leaves at 1:53 am, and on Sunday nights at 12:54 am.
Related routes
- South Station to Constitution Beach
- South Station to Revere Beach
- Boston Common to Belle Isle Marsh
- North Station to Belle Isle Marsh
- Never miss your stop (guide)
More routes from South Station
- South Station to Logan Airport
- South Station to Castle Island
- South Station to Leader Bank Pavilion
- South Station to the Seaport
- South Station to New England Aquarium
- 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: Silver Line SL3
- MBTA: Blue Line
- MBTA: South Station station
- MBTA: Airport station
- MBTA: Suffolk Downs 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.