Every Jetblue flight I’ve ever been on has been delayed. I’m typing this while waiting for a jet blue flight right now (weather is perfect and AA and Delta are flying into my destination currently so thats not it either). I travel occasionally for work and it doesn’t seem to matter what airport, day of the week, time of year, or time of day…jetblue will be delayed. The planes are decent and the cost isn’t bad but if you’re flying jetblue and have a connection then God speed, you’ll need it.