The new agreement will first launch at New York JFK and Los Angeles gateways. And of course, as reported back in May 2011, when JAL launches its Tokyo Narita - Boston route, the agreement will cover BOS as well, allowing passengers to connect easily to a lot of East Coast cities.
So to celebrate this new interline agreement, JAL has decided to run a rather lame campaign. Passengers who calls JAL US between Feb 15 and Mar 31 2012 to book a ticket that includes a JAL on-line transpacific sector and a connecting JetBlue segment at JFK, LAX and BOS will have their ticketing fee waived...wow a USD20 saving!! I bet you can save even more if you go book it through a travel agent such as JTB! And note that if JAL website supports booking JetBlue sectors, you can always book via the website without paying for the fee.
Source: JetBlue Press Release