Currently there is a flight on Star Alliance (ANA, EVA, United, Singapore, etc) to Southeast Asia. The flights are from major hubs such as Los Angeles(LAX)/Chicago(ORD)/New York(JFK) to Singapore(SIN)/Bangkok(BKK)/Kuala Lumpur(KUL) from $500. The dates are today through November and January through April 2018. Use Google Flights to search for the flights that suit you.
I just booked a roundtrip ticket from LAX to SIN for November as a birthday present to myself. The ticket cost $638 on United Airlines. I paid for the flight using my American Express Platinum which netted 5 X points (3,190 Membership Rewards points) since I booked through the airline. I will earn 17,440 Premier Qualifying Miles which will make me a United Platinum Elite.
I am excited to see Singapore again.
Found on TPG