Delta SkyMiles members can earn miles for tours on Scenic Airlines. You can earn from 500 to 4,000 miles on a selection of Grand Canyon Tours. And if you’d like to walk on air — or at least feel like you are — you can earn 1,500 miles for the Grand Canyon West — Skywalk Walk on Air Tour. The tour features a roundtrip charter flight from the Scenic Airlines terminal to Grand Canyon west; barbecue lunch; hotel connections from most Las Vegas hotels; bus excursion with guide; a walk across the Skywalk, 4,000 feet above the canyon floor and fabulous views of Lake Mead, Hoover Dam, the Colorado River and, of course, the Grand Canyon. Tour prices are $289 per adult and $274 for children 12 and under. Visit http://www.scenic.com

Delta is not the only airline that partners with Scenic Airlines to earn miles. Members of Philippine Airlines’ Mabuhay Miles can earn between 1,000 and 10,000 miles when taking Scenic Airlines tours that range from $74 to $499.