American Airlines In honor of Earth Day on April 22 and National Park Week from April 17 to April 25, American Airlines customers will have the opportunity to donate AAdvantage miles to the National Park Foundation through the airline’s new Miles for Our Planet initiative. Starting on April 17, AAdvantage members can donate their miles to organizations that protect and preserve our planet’s natural resources and help to combat climate change. The initiative made possible through the airline's new partnership with the National Park Foundation, which aims to encourage exploration of the nat...