Air China, Star Alliance member, has a deep discount sale from Los Angeles to Southeast Asia. Today there are at least three routes priced under $475 round trip and possibly more routes. LAX to Singapore at $475 round trip is quite a deal. LAX to Bangkok BKK or Ho Chi Minh City SGN price at $471 round trip. These low fares are for departures from September to early December. There is no minimum stay. I found itineraries with 3 hour turnaround possible.
Google Flights is not showing these low Air China fares in the map mode. Fares to Singapore are posted at $636 in the image below, but drop to $481 when LAX-SIN is selected with dates.
Google Flights Fare Map shows $636 fare, but $481 when dates selected.
The fare drops even lower using Air China booking site link selected through Google Flights.
Air China Los Angeles LAX – Beijing PEK – Singapore SIN
$474.66 Tue Oct 11 – Tue Oct 18
http://www.gcmap.com/mapui?P=lax-pek-sin-pek-lax = 18,060 miles.
Air China L class earns 25% flight miles in United Mileage Plus for 4,515 redeemable miles on LAX-SIN ticket. Earn 100% miles crediting to Aegean or Avianca or 75% in TAP Portugal.