Singapore Airlines via DealBase has select Singapore Airlines Roundtrip Flights to Asia on sale for as low as $688.44. (On the DealBase landing page, click on "" in the top line to see this offer.) That's $94 under our December mention and the lowest price we could find by $15. This price is valid on flights departing from San Francisco, CA, (SFO) to Seoul, South Korea, (ICN) on January 24 with return on January 31. Book this travel deal by February 2 for travel through November 30, 2017. Other notable fares:

Houston (IAH) to Singapore (SIN) from $852.55

New York (JFK) to Jakarta (CGK) from $933.79

see all available Singapore Airlines fares