A 2.8 hour flight from Bariloche to Buenos Aires. Strangely, only one photo from flying?

Canon EOS 40D with Canon EF 24-105mm f/4L IS at 45.0 mm; 1/160 sec, f/4.0, ISO 400

29,000 feet. Nearly no wind -- 2 knots total, a nearly perfect tail wind. See also this picture, from 2009-03-30.