Another flight from Los Angeles was packed with Gold Star children and Sinise was able to send them off on their journey before meeting them in Florida later in the week.
The Gary Sinise Foundation was created in 2011, Fox News reported.
Last year, the foundation officially welcomed the Snowball Express as part of the charity.
According to the foundation's website, "No matter where these families are in the grieving process, we hope to inspire them to believe anything is possible."
As for this specific trip to Disney, the foundation officials said, "The holidays can be especially challenging for grieving families. Each December, we host a five-day experience for 1,750+ children of the fallen and their surviving parent or guardian. As a therapeutic retreat with a blend of fun and inspiring programs, these families can lean on their peers for support. And this year we're bringing Snowball Express to Walt Disney World Resort."
But the foundation doesn't just focus on the holiday season. It also hosts events for Gold Star families all year long. The foundation takes them to baseball games, camping and gives them educational opportunities to help "build bonds with the only people who can truly understand their loss: each other."
To see how you can help Gold Star families through the foundation, click here.