Transportation thumb|right|Ferry at Clinton The only bridge that reaches Whidbey Island is the Deception Pass Bridge, State Route 20, which connects the north end of Whidbey to the mainland via Fidalgo Island. Prior to the completion of the bridge in 1935, Whidbey Island was linked to Fidalgo Island by the Deception Pass ferry, which ran from 1924 to 1935. Modern ferry service is available via State Route 20 on the Coupeville to Port Townsend ferry, and via State Route 525 on the Clinton to Mukilteo ferry service on the southern east coast.
Transportation thumb|right|Ferry at Clinton The only bridge that reaches Whidbey Island is the Deception Pass Bridge State Route 20 which connects the north end of Whidbey to the mainland via Fidalgo Island Prior to the completion of the bridge in 1935 Whidbey Island was linked to Fidalgo Island by the Deception Pass ferry which ran from 1924 to 1935 Modern ferry service is available via State Route 20 on the Coupeville to Port Townsend ferry and via State Route 525 on the Clinton to Mukilteo ferry service on the southern east coast