The best flight deals are often to familiar locations. That's not a bad thing, necessarily. Taking a couple trips to Hawaii shouldn't be a burden. However, it is nice when deals crop up to a location you maybe weren't planning to visit.
That might be the case with low fares available from All Nippon Airways. It currently has deals on flights to Ho Chi Minh City, Vietnam and Kuala Lumpur, Malaysia. Best of all, Kuala Lumpur is the home to the surprisingly solid budget airline AirAsia. That makes the Malaysian capital a good first destination for a longer trip to multiple cities in Southeast Asia. (Also, Vietnam is a country you should visit soon.)
The deals include a $477 round trip flight from San Francisco to Ho Chi Minh City in September or October. You can get to Kuala Lumpur for just $484 from Los Angeles of $552 from Portland or Phoenix.