The aircraft taking off, is suspiciously close to the terminal, (first clue). This aircraft does not appear to be on a proper runway for an aircraft of this size, Commercial runways are commonly hundreds of feet wide. (second clue). Save the photo, and zoom in on the wheels of the departing aircraft. The wheels are not on pavement, there is grass there. Including a runway marker which is directly below the left wing. Note the markers in the foreground for reference as to what they look like. An aircraft this size, taking off, would be no where near a runway marker. (third and final clue).
Photoshop fake, and not a very good one.