Delta/Skyteam EX-WAS 11/18 all coded as peak?
 

Hi there,

I'm looking to get to Europe or Mexico city this day but I'm assuming because of Thanksgiving it's all coded YA (peak) not YS. I'm just wondering if there's possibly a partner airline search that would work with Delta miles that' I'm missing if anyone has any input. Thanks!

Unless you're referring to only non-stops from IAD, then delete the domestic connection sector and search that way. On peak days for DL, AA, UA, etc, the domestic connection may not have saver availability, but alliance partners may have flights from other convenient airports. In your case I'd be looking also at PHL and NYC departures.