I fly Jet Blue alot. I really love their airlines. I think they have great rates also, and that is the main reason I fly them. I think the cheapest way to book a flight with Jet Blue is through their online website. I think you can usually find it cheaper through their website than through other online booking ways like Expedia, etc.
I enjoy Jet Blue because most of their planes have a tv at each seat and you are able to watch several tv stations for free or you can purchase a movie to watch on the flight. The movies are usually movies that are out in theaters, which is kind of cool. I think the seats are very comfortable and the service is wonderful.
I use Jet Blue alot when I am flying to New York City cause they go to both JFK & La Guardia. The biggest problem I have with Jet Blue is that they do not have flights everywhere, or as to as many places I would like, such as Delta does. However I live in Orlando, which Jet Blue does fly too so that works out.
Jet Blue also has a great rewards program which I have already gotten a free flight from. The rewards program is also free to join, which is great.
I definitely recommend this airlines for a great deal.