Cape Flyer is offering a nice promotion for June
https://www.boston.com/travel/new-e...-money-on-capeflyer-tickets/?p1=hp_featurebox
The weekly summer train service between Boston and the Cape, which begins Friday, is celebrating its 10th anniversary with a special deal for customers: $10 round-trip tickets in June. A round-trip ticket from South Station to Hyannis typically costs $40.
The discounted tickets are available on the
mTicket app or at the ticket booth at South Station only during the month of June. Travelers should note that children age 11 and under ride for free when accompanied by a paying adult.