Interline agreement to connect America's largest domestic carrier and Taiwan-based China Airlines through shared gateways in California, creating first trans-Pacific airline partnership for Southwest Airlines NEW DELHI, June 2, 2025 /PRNewswire/ -- Southwest Airlines Co. (NYSE: LUV) and China Airlines Group, a Taiwan-based carrier, are in discussions to create an interline partnership in early 2026, with published connections expected to go on sale later this year. Executive Leadership from both carriers me ...