Update: Some offers mentioned below are no longer available. View the current offers here.Want to see the latest flight deals as soon as they’re published? Follow The Points Guy on Facebook and Twitter, and subscribe to text message alerts from our deals feed, @tpg_alerts.Airfare deals are typically only available on limited dates. We recommend that you use Google Flights to find dates to fly, then book through an online travel agency, such as Orbitz or Expedia, which allows you to cancel flights without penalty by 11pm Eastern Time within one day of booking. However, if you’re using the American Express Platinum Card, you’ll need to book directly with the airline or through Amex Travel portal to get 5x MR points. Remember: Fares may disappear quickly, so book right away and take advantage of Orbitz or Expedia’s courtesy cancellation if you’re unable to get the time away from work or family.JetBlue’s fourth sale for its A December to Adventure promo are low fares from the US to Cuba, starting at just $54 each way. Tickets are available from Fort Lauderdale (FLL), New York (NYC) or Orlando (MCO) to Camaguey (CMW), Havana (HAV), Holguin (HOG) and Santa Clara (SNU). And if you pay with JetBlue points, you will get an even better value, as in the case of Fort Lauderdale to Camaguey, which is just 100 points + $31 in fees, which is an effective price of $32 based on TPG’s valuations. Availability is wide open for departures from January through September 2017 for some of the fares, but use Google Flights to find the lowest prices on your preferred route. But be sure to act quick, as this sale will most likely end tonight at 11:59pm ET.Airline: JetBlueRoute: FLL, JFK and MCO to CMW, HAV, HOG and SNUCost: $54+ one-way or $114+ round-trip in economyDates: January - September 2017Booking Link: Orbitz or ExpediaPay With: The Platinum Card from American Express (5x on airfare), Chase Sapphire Reserve, Premier Rewards Gold Card from American Express, Citi Prestige (3x on airfare) or Chase Sapphire Preferred (2x on travel)Here are a few examples of what you can book:Fort Lauderdale (FLL) to Camaguey (CMW) for $54 one-way in January:Fort Lauderdale (FLL) to Camaguey (CMW) for $54 one-way.Fort Lauderdale (FLL) to Camaguey (CMW) for 100 points + $31 one-way in January:Fort Lauderdale (FLL) to Camaguey (CMW) for 100 points + $31 one-way.Fort Lauderdale (FLL) to Holguin (HOG) for 100 points + $31 one-way in February:Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Fort Lauderdale (FLL) to Holguin (HOG) for 100 points + $31 one-way.New York (JFK) to Havana (HAV) for $99 one-way in February:New York (JFK) to Havana (HAV) for $99 one-way.Fort Lauderdale (FLL) to Holguin (HOG) for $114 round-trip February:Fort Lauderdale (FLL) to Holguin (HOG) for $114 round-trip.Maximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases, such as the American Express Platinum Card (5x on flights booked directly with airlines or American Express Travel), Chase Sapphire Reserve, American Express Premier Rewards Gold or Citi Prestige (3x on airfare) or the Chase Sapphire Preferred Card (2x on all travel purchases). Check out this post for more on maximizing airfare purchases.If you’re able to score one of these tickets, please share the good news in the comments below!