The closest airport is Boston Logan International Airport (BOS)
The airport is about an easy 45-minute drive from Newburyport. There are several ways to get there: (1) Take a taxi, Uber, Lyft, etc. all the way to Newburyport (2) Take a taxi, Uber, Lyft, etc. to North Station in Boston, then take the Commuter Train (Newburyport/Rockport Line) to Newburyport Station. (Timetable can be found here https://www.mbta.com/schedules/CR-Newburyport/timetable)
The ceremony starts at 5pm, however, Smolak is a fully functioning farm and you can feel free to arrive early and check on the orchards (peach, apple and blueberry!), grab a snack at the food/ice cream stand or visit with the animals if you have time to kill but want to make sure you are on time!