The short answer
CASCO BAY LINES PORTLAND is an authentic passenger ferry transit charge from the Casco Bay Island Transit District (Casco Bay Lines) providing year-round passenger, freight, and vehicle ferry services between Portland, Maine and the Casco Bay Islands.
Why Casco Bay Lines Billed Your Statement
A charge showing CASCO BAY LINES PORTLAND on your credit card or bank account represents a transit transaction from the Casco Bay Island Transit District. Casco Bay Lines operates year-round passenger and vehicle ferry services departing from the Maine State Pier in Portland, Maine. The transit district provides water transport connecting mainland Portland to surrounding island communities, including Peaks Island, Little Diamond Island, Great Diamond Island, Long Island, Chebeague Island, and Cliff Island. If you see this descriptor, it reflects a Casco Bay Island Transit District Ferry Fare.
Transactions occur when you purchase transit at the Portland terminal ticket counter or pay through an automated kiosk. Fares range from $8.50 for a standard passenger ticket up to $95.00 or more for passenger cars or multi-ride commuter ticket books. Casco Bay Lines also hosts scenic harbor cruises and music cruises, which post under the exact same merchant descriptor. Passenger tickets are sold on a round-trip basis from the mainland, so you will only see a single charge rather than separate debits for each leg of the journey.
If you do not recognize the charge immediately, check if a family member or authorized card user recently visited Portland or the Casco Bay islands. General passenger tickets issued by Casco Bay Lines do not have expiration dates, meaning unused paper tickets remain valid indefinitely for future travel. If you purchased tickets in error or need refund consideration, visit the ticket office at the Maine State Pier or call their customer service office at 207-774-7871. Cardholders who have not visited Maine and suspect their card data was stolen should report the unauthorized debit to their bank.
- Round-trip passenger ferry ticket purchased for Peaks Island or other Casco Bay islands
- Vehicle ferry ticket or reservation for vehicle transport between Portland and Peaks Island
- Multi-ride commuter ticket book purchased by regular island residents or workers
- Scenic harbor cruise or music cruise ticket booked aboard a Casco Bay vessel
- Check whether an authorized person in your family visited Portland, Maine or the surrounding islands.
- Look for physical paper tickets stamped with Casco Bay Lines.
- Compare the charge amount with published passenger fares for Casco Bay routes.
Do Casco Bay Lines passenger tickets expire?
General passenger tickets to the Casco Bay islands do not have an expiration date and remain valid for travel indefinitely.
Can I receive a refund on an unused Casco Bay Lines ticket?
Unused tickets may be returned to the ticket office at the Portland terminal for refund consideration according to district tariff policies.
Independent reference — not affiliated with Casco Bay Island Transit District (Casco Bay Lines). Billing names and policies change; verify with the merchant or your bank before acting.
Verified sources
Every claim on this page is checked against official sources — open them to confirm before you call your bank.
- Casco Bay Lines Fares and Passes https://www.cascobaylines.com/fares-and-passes/
- Casco Bay Lines Passenger Frequently Asked Questions https://www.cascobaylines.com/ferry-passengers/frequently-asked-questions/
Reviewed Sep 11, 2026 · high · About UnknownCharges