(AP) — Seats and flights are being limited for Korean War veterans who want to take a free, one-day tour of military memorials in the nation’s capital.

Bill and Evonne Williams organized the Heartland Honor Flights that carried more than 1,500 World War II vets to Washington, D.C., but financial support for the Korean War vets hasn’t been forthcoming.

The Williamses said more than 500 vets have applied for seats when there may be only 125 and just one plane. So far they’ve collected only about $10,000 in donations. They had raised $1.2 million for the seven flights taken by World War II vets in 2008 and 2009.

The Williamses will be screening the Korean War vets to select the most deserving among them.