I must admit I really thought this museum was going to be boring, but I was wrong. It might be one of the best attractions in the Seattle area. I really enjoyed seeing the lounge in the 747 and seeing the interior of the Concorde. They are open from 10am to 5pm, but some exhibits do close at 3pm. They charge $18 for adults, ($16 for AAA members). They don't charge extra for parking and have a small restaurant inside the museum. We probably spent about 3 hours here. It was definitely money well spent.