Singapore Airlines and Dallas-based Southwest Airlines have opened an interline partnership, letting travelers from Vietnam and across Asia book a single ticket from Changi Airport to nearly 120 U.S. cities.

SOUTHWEST AIRLINES BEGINS INTERLINE PARTNERSHIP WITH SINGAPORE AIRLINES

Passengers can now book journeys between Singapore and the United States on one ticket with onward access to Southwest Airlines' network.

Singapore Airlines and Dallas-based Southwest Airlines have opened an interline partnership, letting travelers from Vietnam and across Asia book a single ticket from Changi…