As revealed on Flyertalk, United Mileage Plus members booking business class transatlantic or transpacific award flights can only be booked in coach on Singapore connecting segments. S*MPI/STAR-AWARD RULES.R:**NOTE: X/I/O IS NOT OFFERED ON ALL ROUTES. FOR SQ BUSINESS CLASS AWARDS WITH CONNECTIONS/STOPOVERS TO/FROM A TRANSOCEANIC FLIGHT BOOK *I* CLASS FOR TRANSOCEANIC FLIGHT ACROSS THE ATLANTIC/PACIFIC AND *X* FOR ONWARD FLT EXAMPLE – SQ BUSINESS CLASS AWARD LAXDPS BOOK *I* LAX-SIN AND *X* SIN-DPS SQ AWARDS THAT DO NOT INVOLVE A TRANSOCEANIC SECTOR USE *I* FOR ALL SECTORS INCLUDING 2 CABIN AIRCRAFT Lesson is that if you fly Singapore on a business award you’ll want your onward connection on another Star carrier in order to remain in business.
