Your option for getting to Whidbey Island are several: flying, driving or taking the boat. By boat I mean the Washington State Ferry of course. And of course it does depend upon where you are coming from. I'll cover the three directions that are obvious.
Coming from Seattle (South of Whidbey), Bellingham or say Vancouver British Columbia (North of Whidbey) or perhaps from the Olympic Peninsula, Port Townsend, Port Angels etc. (West of Whidbey)
Coming from the South ie Seattle you have three options.
1. You can fly on Kenmore Air from Lake Union to Oak Harbor.
2. You can take the train or drive to the Mukultio Ferry Landing and ride the Washington State Ferry across to Clinton at the south end of Whidbey Island
3. You can drive up I-5 to Burlington and get off on State Route 20 west and follow the signs to Whidbey Island. This is the most scenic drive as you drive across the farm land of Skagit Valley, over Twin Bridges to Fidalgo Island and then wind you way south past Cambel lake and Pass Lake before crossing the breathtaking Deception Pass Bridge.
Coming from the North ie Bellingham or Vancouver BC. Ypour really down to just one option. You can ake I-5 to Burlington and get off on State Route 20 west and follow the signs to Whidbey Island. This is the most scenic drive as you drive across the farm land of Skagit Valley, over Twin Bridges to Fidalgo Island and then wind you way south past Cambell lake and Pass Lake before crossing the breathtaking Deception Pass Bridge
Coming from the West ie Port Townsend.
Catch the Port Townsend to Coupeville Ferry it will drop you off at the ferry landing located on the west side of the Island next to Fort Casey and the Camp Casey Conference Center. (about 4 miles from Coupeville)