DELTA starting 17DEC16 is launching new seasonal operation on Seattle – Sun Valley route, initially operating on daily basis during Christmas and New Year season, from 17DEC16 to 02JAN17. This will change to Saturday-only operation starting 07JAN17, on board Skywest Airlines CRJ700 aircraft. Planned schedule as follow.
DL3557 SEA0930 – 1220SUN CR7 6
DL3557 SUN1255 – 1405SEA CR7 6