Published: March 31, 2006 at 10:25 AMThe intro rate is about $150 one-way. It can go up to $300 one-way, according to a search on the JetBlue website. (With JetBlue and other discount airlines, the cost for a roundtrip is twice the cost of a one-way. There's no penalty for buying just a one-way trip, as there can be on the "traditional" airlines.) The trip's about four hours.