There are no large hotel chains on Whidbey Island. We recommend booking accommodations through AirBnB, VRBO, or other similar vacation rental websites. A few inns and B&B's in the area are noted below. There are more traditional lodging options on the mainland, including in or near Mukilteo.
All wedding festivities are scheduled in Langley, which is on the southern end of the island. Any lodging option south of Coupeville should have you within a 30 minute drive of all wedding festivities.
Taxi and rideshare services (e.g., Uber & Lyft) on Whidbey Island are available but limited.