Cathay Pacific cuts 30% offCathay Pacific Business Class Roundtrip Flights to Singapore from select cities in the U.S. with prices starting from $4,999.35, as seen on Travelzoo. That's tied with last week's mention and the lowest price we could find by at least $134. This price is valid on flights departing from Boston, MA, (BOS) with arrival in Singapore (SIN) on July 12 and return on July 17. Book this travel deal by June 30 for flights through December 31. Click here to see more routes.