[gnicholas]

I was searching for flights on Google today and it showed that there were zero flights from DEN to SFO departing in the morning. None.

I couldn't believe that two United hubs would have no flights in the morning, but before I took the time to check United's website I remembered that SWA isn't on Google Flights. They had plenty of morning flights (out of SJC, which IMO is more pleasant anyway).

I don't know if I encountered a glitch or if Google Flights has bigger problems. But it was really surprising that they would show no morning flights between these cities, and it raised a red flag for me!