> I'm curious how that happened to you

Mostly a combination of needing to travel at particular times to particular airports.

The last two flights from SJC to LAX each evening seemed to be the most often delayed. You can't exactly hop on the next flight if it doesn't leave until the following morning.

Morning flights to SFO are often delayed due to weather, and fighting peninsula traffic to get to work sucks. BUR-SJC on Southwest would have been optimal from a flying perspective, but LAX was a shorter drive.