8 Maine Ferry Runs Tourists Assume Go All Year

You remember an easy ferry trip from your last Maine vacation and plan to do it again.

This time, though, you’re visiting in a different season.

That detail can change more than what jacket you pack.

These are the Maine ferry runs tourists assume go all year.

Duck Harbor Run

Isle au Haut Boat Services runs the mailboat from Stonington to Isle au Haut, with a stop at Duck Harbor, the landing inside Acadia National Park.

That access has a shutoff date.

It won’t run this winter.

Isle au Haut Boat Services’ own October 13 switchover cancels the Duck Harbor stop and every Sunday sailing until spring, leaving only a Monday-through-Saturday run.

Weekday trips thin out at the same time, and winter sailings drop to as few as two a day instead of three.

Duck Harbor service doesn’t come back until May 23, 2027.

Monhegan’s Daily Boat

Monhegan Boat Line bills itself as the only year-round ferry service to Monhegan Island, and through the first half of October that daily boat still runs like clockwork.

Then the calendar flips.

Right up to the cutoff, the ferry still makes two full round trips every single day of the week.

Starting October 14, that falls to Monday, Wednesday and Friday only, and to a single boat on each of those three days.

That schedule holds through New Year’s Eve.

A visitor who books a same-day return in late October, expecting the summer’s easy back-and-forth, can find a three-day gap between boats instead.

Peaks Island’s Evening Car Ferry

Casco Bay Lines runs its Peaks Island boat close to hourly for much of the day.

The line calls itself a year-round ferry service.

Year-round doesn’t mean unchanged.

Casco Bay Lines’ currently posted Fall schedule, good through October 12, still lets a driver roll a car onto the evening boats between Wednesday and Sunday.

Casco Bay Lines hadn’t posted its 2026-27 Winter timetable as of this writing, but its most recently posted Winter schedule pulled that back.

Under that pattern, the boats after 7 p.m. on Sunday through Thursday carried foot passengers only, and a driver hoping to bring a car home late on a weeknight was out of luck until Friday.

Chebeague and Cliff Island’s Boat

Casco Bay Lines runs a boat to Chebeague Island and Cliff Island every day of the year, which reads like steady, dependable service.

It isn’t.

Even now, under the current Fall schedule, Chebeague Island and Cliff Island each get just seven trips a day, with gaps that stretch two to three hours between boats.

That’s the shoulder-season count.

Once Winter replaces Fall in the middle of October, Casco Bay Lines trims evening trips from this run the same way it does on the Peaks Island route.

That leaves fewer options once the sun goes down.

A missed morning boat can mean waiting past lunch for the next one.

Vinalhaven's Last Boat Home

Vinalhaven's ferry to Rockland runs six trips a day, and the last boat off the island holds down a 4:30 p.m. slot all summer and into fall.

That slot won't last.

Maine's posted summer schedule for Vinalhaven runs the 4:30 p.m. departure through November 1, then swaps in a Fall schedule starting November 2 whose last boat leaves at 3:15 p.m. instead.

That's an hour and fifteen minutes, gone overnight.

A day-tripper who plans an afternoon on Vinalhaven around the old 4:30 p.m. boat can watch it sail without them two days after Halloween.

Islesboro's Nine-Trip Day

Islesboro's ferry to Lincolnville runs nine round trips a day, Monday through Saturday, all summer long.

Two trips disappear in winter.

Maine's posted Islesboro schedule shows the winter timetable dropping to seven trips a day, cutting the 10:30 a.m. and 2:30 p.m. crossings.

Sunday loses three trips, dropping from eight down to five.

A midday errand run that works in July can mean a two-and-a-half-hour wait between boats once winter service starts.

Swan's Island Boat

Swan's Island and Frenchboro share the same ferry out of Bass Harbor, and both terminals post the same kind of pattern.

Doors close earlier come winter.

Maine's posted terminal hours show the Swan's Island end open until 4:30 p.m. all summer and fall, then closing as early as 3:45 p.m. in winter, a swing of 45 minutes.

The Bass Harbor side follows a similar pattern many days of the week.

Its terminal hours shrink from 5:15 p.m. down to 4:30 p.m. in winter, pulling the evening window in on many crossings.

Thursdays and the first and third Wednesday of each month hold at 5:30 p.m. year-round instead.

Both ends get tighter, except on those two days.

Matinicus's Ferry Math

Matinicus sits about 23 miles off Rockland, and a lot of visitors treat its ferry like any other Maine island boat.

It isn't one.

Maine law only guarantees Matinicus ferry service 12 times a year, and the Maine State Ferry Service's current 2026 schedule totals just 40 trips for the entire year.

Spread across 12 months, that's roughly one boat a week.

Many Matinicus residents fly the mail plane for routine trips and save the ferry for hauling anything a small plane can't carry.

Staying Flexible in Winter

Winter ferry travel runs on more than a printed timetable.

Wind, fog and ice cancel trips that a schedule alone won't warn a visitor about.

Schedules don't catch that.

The state posts live cancellations through New England 511 and the Maine State Ferry Service's Facebook page rather than waiting to update the printed schedule.

Signing up for text alerts there takes a couple of minutes.

Private operators like Monhegan Boat Line and Isle au Haut Boat Services post cancellations by phone and on their individual websites instead.

Neither one feeds into New England 511.