The show itself and parking are free.... many people bring bag chairs so they can sit wherever they like to view the air show.... but there are also bleachers available for a nominal fee....The air show is offered on either a Saturday or a Sunday performance.... the demonstrations are spaced out over a 4 hour time frame but usually conclude around 4 in the afternoon.... Air Force Thunderbirds Air Force Thunderbirds  Using the shade of the planes...….