Join Date: Apr 2009
Location: Bye Delta
Programs: AA EXP, UA Silver, HH Diamond, IHG Plat, Hyatt Plat, Marriott Titanium, Nat'l EE, Avis PC, Hertz PC
Posts: 16,633
You can only have one designator. And keep in mind a designator is really just text, it has no effect by itself other than to provide information, such as that a discount that has been applied. Just because a fare doesn't have a /WNUP designator doesn't mean it's not an UP fare.
My guess is /XX22N is a designator that refers to your company's negotiated rates.
DL has two published MA00A0RC fares... one /WNUP and one not. The difference is about $59 each way. My guess is the same fares are available to you through Amex travel (pursuant to whatever discount your organization has negotiated), they're just not showing the designator because that's being used to denote your corporate rate.
Last edited by javabytes; Aug 28, 2014 at 7:23 pm