Korean Air may keep dual mileage programs after merger

Korean Air may have to run two separate mileage programs even after its merger with Asiana Airlines takes effect Dec. 17, as South Korea's antitrust regulator withholds approval of the integration plan. In a securities filing on Tuesday, the national flag carrier stated that absent approval from the Fair Trade Commission before the merger date, it "may need to maintain and operate the existing Korean Air and Asiana Airlines mileage systems separately." This would avoid making the programs less f