From David Moseley, Washington State Department of Transportation Assistant Secretary , Ferries Division (WSF)

This week WSF  added “best travel times” data to the website for the summer schedule. WSF  launched this tool in April for the spring schedule. This color-coded tool pinpoints the least and most congested sailing times for drive-on passengers. The color-coded schedules are available on the right side of each route schedule page beneath a tab titled “Best Travel Times.”

For the spring schedule (until June 19), click here to see the best travel  times wsdot.wa.gov/ferries/traffic_stats/congestion/spring/.pdf

For the summer schedule (beginning June 19), click here to see the best travel times:
wsdot.wa.gov/ferries/traffic_stats/congestion/summer/.pdf