<i>The fatal flaw of this logic is that the 3+ hour rule is not about JetBlue, JFK, or flight operations. It's about passengers. Plain and simple. Should passengers have to sit on the plane for more than 3-hours without going anywhere? If the answer is "no", then abide by the rule. if the answer is "yes, sometimes", then get rid of the rule entirely.</i><p>I'm guessing that JetBlue thinks the answer is "yes, sometimes". They're a low-cost operator. Turning the plane around is expensive, and the cost, I'm sure, is entirely on the operator.<p>This is a problem only because ATC can't tell one hour ahead of time if the expected wait-time is 30 minutes or 3+ hours.