Are you talking about the Seattle Nordy's? What time of year is best to visit?
best time to visit Seattle Nordstrom is never, it is awful these days.
They have a small Lanvin collection and the rest is mid-tier randomness and Gucci type trash. They were trying to elevate it a few years back but not enough people were willing to pay $500 for a nice knit so they gave up.
The nordstrom flagship downtown is the worst when it comes to designer stuff. The selection is pretty mediocre, and the employees have no clue what theyre talking about. The worst part is the prices aren't anything to write home about so its pointless to go for designer items. However, a decent amount of APC basics tend to hit 50% if you are bigger/smaller sizes.