Airports/Airlines: The studio in Seattle is in the Ballard/Fremont neighborhood. SeaTac Seattle/Tacoma International Airport is the primary airport for Seattle though recently there is service on select airlines into Paine Field Airport, Everett, WA. Paine Field is approximately 23 miles north of the Ballard Millinery Studio/Ballard Neighborhood whereas Seattle/Tacoma International is approximately 18 miles south. Rental cars with shuttle to facilities are available at Paine Field.
You may wish to use a rental car but there are certainly light rail and airport shuttles to downtown Seattle and bus to the Ballard/Fremont neighborhood.
Hotel Accommodations: These 3 hotels are within easy walking distance to the Ballard Millinery Studio.
There is also the AirBNB online possibility. Depending on the private location you may need a car.