Just in time for your holiday travel plans! (and nicer than the recent United double miles promo I posted)
Earn 4x points on all flights when you register and book by November 13 for travel through December 31, 2013.
1. You must register here
2. Book by November 13 for travel through December 31, 2013.
4. Earn 15 points per dollar (12 points from this 4x promo + another 3 points per dollar if you book on the JetBlue.com website)
There's no limit and it doesn't work on tickets already purchased. You've only got a whole 2 weeks to make your bookings.
(HT to Wandering Aramean)