Singapore Airlines KrisFlyer members can now earn miles for JetBlue flights and vice versa.
The number of miles earned is dependent of the fare class and the length of the flight on both programs. Redeeming KrisFlyer miles for JetBlue or TrueBlue points for Singapore Airlines flights is not yet possible.
JetBlue TrueBlue earning chart for Singapore Airlines flights:
Singapore Airlines earning chart for JetBlue flights:
Always good to have more partners where earning miles is possible, although redeeming is not (at least not yet). Singapore Airlines probably wants to tap for JetBlue to feed their US flights and this frequent flier partnership is part of the process.