Block Island Ferry Promo Codes & Coupons September 2026 — Up to 20% Off

Interstate Navigation Company, Inc. Operates Block Island ferries and is the only service throughout the year. Located at cape Judith in Narragansett, Rhode Island, Block Island Ferry offers traditional ferry service (55 minutes) and the fastest ferry ride from the mainland (30 minutes). If your trip to block island is a business trip, a family vacation, or a weekend island vacation, it will make it easy and quick to reach block island. They transport passenger cars, commercial trucks and freight. It is your full services ferry company. Block Island Ferry goal of interstate navigation is to provide a safe, convenient and reliable lifeline for the residents and visitors of block island. Their ships provide year-round service for cars, trucks and passengers, freight and the U. S. postal service. Their crew is certified by the United States coast guard and is committed to ensuring the safety of passengers and cargo.