It looks like you are listed on those flights already for the 27th.At this time there 40+ seats SEA-SLC and 8 seats SLC-IDA. Sometimes SEA-SLC really fills up with non-rev’s.Flights to PIH are BAD.There are also 40+ seats on flt 1608 SEA-SLC at 7:25am if you wanted an extra 1 ½ hour sleep.You can easily make a 30 minute layover in SLC.Again, check numbers again Sunday night.