JFK to SFO is $141.60 too, good price.
Valid dates JFK-MSP-SFO:
Oct: 11, 12, 14, 18, 25-29, 31
Nov: 1-5, 7-9, 11, 12, 14-17, 30
Dec: 1-3, 5-10, 12-16, 19
Valid dates SFO-MSP-JFK:
Oct: 11-13, 18-21, 26-28, 31
Nov: 1-4, 8-11, 15, 17, 30
Dec: 1, 2, 4-9, 11-16, 18, 19