By Melanie Lieberman
December 08, 2016
Patrick T. Fallon/Bloomberg via Getty Images

JetBlue’s 12-day December to Adventure campaign has returned after a slight website meltdown caused by deal-hungry travelers.

Thursday only, the domestic carrier is selling flights to Cuba beginning at $54 one-way. Reservations must be made by 11:59 p.m. ET, and supplies of the super-cheap seats are limited.

Flights are available from December 8 until February 28, though blackout dates apply for the second half of December.

Cuban government-required health insurance is included in the fare, and there is an easy online affidavit process for travelers to note which approved travel reason qualifies their trip. Cuban Tourist Visa available for purchase at check-in.

This flight deal follows on the heels of $30 one-way flights to the Caribbean and $20 flights to California, Florida, and Las Vegas. The $20 flight deal is still available, after the aforementioned web crash.

Every day until December 16, JetBlue is getting into the holiday travel spirit by offering a flight deal at 1 p.m. ET. Check back tomorrow to see the latest offer on JetBlue’s calendar of deal-filled snow globes.