Originally Posted by
Jerseyguy
Because I'm crazy, I thought that was a requirement for Flyertalk

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The real reason is, I HATE redeyes and the SLC-JFK Nonstop is a redeye. David are you listening??? NO MORE REDEYE ONLY CITIES!!!! JetblueFA next time you see him maybe you can slap some sense into him.

When people look at a route like JFK-SLC, JFK-PDX, JFK-SMF. And they see 1 flight each way (westbound late evening eastbound redeye), most people get turned off by it, which is probably why they stay 1 flight markets due to lack of demand.
</rant off>
Also, question does JFK-SEA only a seasonal (summer) 2X nonstop? My brother had to go to SEA last month and he told me that he didn't fly B6 because of the time (late evening/redeye). He ended up roughing it with CO.
You do have a point about "staying 1-flight redeye markets" due to lack of demand. The redeye part makes sense for aircraft utilization purposes. But, it wouldn't hurt for jetBlue to at least *try* twice-daily service to the aforementioned cities. I'll give them some credit for adding a second SEA-JFK flight during peak season in the summer. I think PHX is 2x year round now? DEN goes up to 3 at some points I believe.
If not year-round, cities like TUS and SLC can definitely accomodate one extra flight for certain weeks of the year.
On the brief topic of transcons, I'll bring up once again that jetBlue should seriously look into MCO-SAN!!! I read somewhere (possibly here or a.net) that MCO-SAN has something like ~400 daily O&D traffic with not even one airline to serve the route nonstop. If jetBlue added a nonstop daily on the A320 to start off with (adding another one if it fills up), it would be a goldmine for them.