I found SQ business class seats from SIN-FRA on SQ 326, overnight layover (14 hours) and then Lufthansa has availability on LH 438 FRA-DFW also in business class.

When I called to book this award the agent said it would be 150,000 miles. She confirmed SIN-FRA-JFK all on SQ for 92,000, but if I did SIN-FRA-EWR with FRA-EWR on UA it again jumped to 150,000.

I'm well versed with AA/OneWorld awards but a newbie with SQ/Star. Does Singapore not allow this routing? Is it because they don't publish a fare in that direction? I know they go SIN-MAN-IAH, and IAH and DFW are obviously close together, so it can't be that you can't go transatlantic to Texas...

Help please? Thank you!