Southwest this week inked a new interline deal with Seoul-based Air Premia that will allow customers to book connecting flights with a single ticket.
The carriers said Wednesday that they will use Los Angeles, San Francisco, and Honolulu as gateways.
The agreement will allow passengers from South Korea to more easily reach U.S. cities with limited or no nonstop service to the country, such as Las Vegas, Houston, Phoenix, and Nashville, Tennessee, officials said. American travelers, meanwhile, will get more convenient connections to South Korea and East Asia generally.
Tickets for the new interline itineraries became available for purchase on Wednesday.
“Similar to Southwest, Air Premia works to pair value and comfort with high-quality service for everyone onboard,” Andrew Watterson, Southwest’s chief operating officer, said in a news release. “Air Premia becomes our latest partner in a portfolio that not only provides more potential global travel options for Southwest customers, it also exposes more marketplaces overseas to our unmatched network in the United States and our world-famous hospitality.”
In Asia, Air Premia serves Tokyo Narita, Hong Kong, Da Nang, Vietnam, and Bangkok. The airline also serves Newark, New Jersey, and Washington Dulles.

