Commuter rail fares are on a zone-based system, with fares dependent on the distance from downtown.
Rides between Zone 1A stations – South Station, Back Bay, most of the Fairmount Line, and eight other stations within several miles of downtown – cost $2.10, the same as a subway fare with a CharlieCard.
Fares for other stations range from $5.75 from Zone 1 (~5–10 miles from downtown) to $14.50 from Zone 10 (~60 miles).
All Massachusetts stations are Zone 8 or closer; only T.F. Green Airport and Wickford Junction in Rhode Island are Zone 9 and 10.

Interzone fares – for trips that do not go to Zone 1A – are offered at a substantial discount to encourage riders to take the commuter rail for less common commuting patterns for which transit is not usually taken.
Discounted monthly passes are available for all trips; 10-ride passes at full price are also available for trips to Zone 1A. All monthly passes include unlimited trips on the subway and local bus; some outer-zone monthlies also offer free use of express buses and ferries.
A cash-on-board surcharge of $3.00 is added for trips originating from stations with fare vending machines.
Commuter rail fares are on a zone-based system, with fares dependent on the distance from downtown. Rides between Zone 1A stations – South Station, Back Bay, most of the Fairmount Line, and eight other stations within several miles of downtown – cost $2.10, the same as a subway fare with a CharlieCard. Fares for other stations range from $5.75 from Zone 1 (~5–10 miles from downtown) to $14.50 from Zone 10 (~60 miles). All Massachusetts stations are Zone 8 or closer; only T.F. Green Airport and Wickford Junction in Rhode Island are Zone 9 and 10.
Interzone fares – for trips that do not go to Zone 1A – are offered at a substantial discount to encourage riders to take the commuter rail for less common commuting patterns for which transit is not usually taken. Discounted monthly passes are available for all trips; 10-ride passes at full price are also available for trips to Zone 1A. All monthly passes include unlimited trips on the subway and local bus; some outer-zone monthlies also offer free use of express buses and ferries. A cash-on-board surcharge of $3.00 is added for trips originating from stations with fare vending machines.
Massachusetts Bay Transportation Authority