Whether you're traveling for business or pleasure, SEA Airport's onsite parking garage offers the closest, most convenient airport parking for your needs and budget. Pre-Booked Parking is now available so you can book your parking in advance to get a discount on our current daily and weekly parking rates. With more than 12,100 spaces available for both short- and long-term parking, the SEA Airport garage offers a wide range of affordable parking options for business and leisure travelers.