Korean Air adds daily from 5X-weekly Seoul Incheon-Seattle, -Dallas, -Toronto for summer season March 31-Oct. 26. Seoul-Las Vegas will be 4X-weekly, up from 3X.

UTair is launching Rostov-on-Don-Frankfurt service June 2. It will also begin 2X-weekly Saint Petersburg-Budapest service beginning April 28.

AirTran will start Austin-San Jose Del Cabos service June 1.

Porter Airlines will add fourth weekday service Windsor International Airport-Billy Bishop Toronto Airport from April 15.