WSDOT - Ferries - Schedule View the Best Times to Travel tool which will tell you the busiest and least busy times to take a vehicle on a ferry You can also find the link listed in the top right-hand column of each of the route schedule page
WSDOT - Ferries - Schedule * Schedule info is available from today's date (12 1 2025) through the end of the most recently posted sailing season (3 21 2026)