On-Airport Shuttle ServiceBuses serving Airport Station and the terminals generally run every 5-6 minutes. You can spot the blue-and-white shuttle buses at curbside, on each terminal's lower level.
Passengers boarding Logan Express Back Bay at Logan Airport ride for free. No ticket is required for trips leaving Boston Logan. For passengers boarding at Back Bay Station or at Prudential Center, tickets can be purchased in advance online at LoganExpress.com.
Passengers traveling to Logan Airport on the service are dropped off at each terminal's departures level, while passengers taking the service from the airport are picked up on the arrivals level at designated curbs.
Boston Express will pick up at every terminal. You can find the bus downstairs, outside of baggage claim, by an orange sign that notes Scheduled Bus. Often times it will have a sign noting ME, NH and VT as well.
On-Airport ShuttleMassport provides free shuttle bus service between airline terminals, the Rental Car Center, the Water Transportation dock, and Airport Station on the MBTA Blue Line. All Massport shuttle buses feature low-floors for easier boarding, luggage racks, and are wheelchair lift-equipped.
Massport works with the TSA to monitor security line length and tries to keep the wait time less than 15 minutes; however to avoid any problems, we recommend arriving two (2) hours prior to domestic departures and three (3) hours prior to international departures to ensure adequate time for check-in, security screening ...
So no, you are not required to tip your charter bus driver in the U.S., but tips are seen as a common courtesy. Gratuity will always be appreciated and can be a great way to show your appreciation for a job well done.