If you're traveling in from out of state, you'll want to fly into the Portland airport, not the Seattle airport. Here are a few recommendations for accommodations.
Hotel
Skamania Lodge Road
Skamania Lodge Road Stevenson, WA 98648
Hotel
Carson Ridge Luxury Cabins
1261 Wind River Highway Carson, WA 98610 (509) 427-7777
Hotel
Carson Hot Springs Golf & Spa Resort
Saint Martins Springs Road Carson, WA 98610 (509) 427-8296
Hotel
Columbia Gorge Hotel & Spa
4000 Westcliff Drive Hood River, OR 97031 (541) 386-5566
Hotel
Columbia Cliff Villas Hotel
3880 Westcliff Drive Hood River, OR 97031 (866) 912-8366