Frustrated. I know my "on-time" SEA-MSP is not on time because it is coming from PVG and I can't get the agents to understand a 757 can't fly from PVG-SEA. I also know from flight aware that the 757 that is supposed to make the trip hasn't even arrived in DTW yet to then come to SEA. But because I am on time I can't rebook. I supposed they could be providing a substitute aircraft but I find that hard to believe on a day like this.
Edit: well...according to DL status now it looks like they will use a 753 that arrived from atlanta last night...at least I hope so.