Originally Posted by
seawolf
I’m almost 100% certain the ticket is ticketed as NYC-YTO, YTO-SIN round trip, and YTO-NYC.
Question is what is the flight number of the SFO-SIN segment. This determines which carrier published the fare.
If SFO-SIN is a AC flight number, then SFO-NYC nonstop would practically be impossible to be booked on unless it is day of departure IRROPS because AC can’t book SIN-SFO-NYC with AC flight number.
If the fare is UA, then maybe a schedule change can be rebooked as SIN-SFO-NYC.
The advertised fare was the
UA/NH: YYZ-SIN, $2600 or so thread so it was a UA fare. I entered the following legs: NYC-YYZ, YYZ-SIN, SIN-YYZ and YYZ-NYC on the UA site. There were lots of options and connections (pages) but I chose what I did because it was AC 787 SFO-YYZ-SFO and I could get AC also on the NYC-YYZ-NYC legs hoping to make connections more convenient. All flights are UA numbers. Only the SFO-SIN-SFO legs are on UA metal.