you need to place a deposit to be in the waiting list. After everyone renews their tickets next March, the allocate the rest in order of the wait list. The deposit will be credited towards the season ticket price. Every year on the waitlist, they deduct a standard amount from the deposit that won't be credited. I don't know what the deposit it these days, but I remember when I put my deposit down, it was 100 dollars and I got the first tickets after 2 years waiting and each year they took 25 dollars off from the deposit as a fee.
The prices vary from around 60 dollars and up depending on the section and the yard line. The club seats are priced anywhere from 250 and up. All of these information is available in the Seahawks website. The season ticket is for 10 home games (8 regular and 2 preseason). The preseason tickets are also the same as regular season ticket prices.