Originally Posted by
3Cforme
Where's the ambiguity? Does it have a WestJet flight number, or a Delta flight number xxxx operated by WestJet? These disclosures have been mandatory under U.S. law for nearly two decades. (Seriously. The CFR dates to 1999.) Is it a case where you haven't seen the ticket receipt/confirmation yet?
Well the receipt shows WS xxxx, as does the booking on the travel agency website. On the DL my trips page it shows DL xxxx operated by WestJet. If it helps, the flight number is the same.