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 eighth sale in its A December to Adventure promo features low fares from the US to the Caribbean and South America, starting at just $50 one-way. Tickets are available from Boston (BOS), Fort Lauderdale (FLL), New York (JFK) or Orlando (MCO) to Aruba (AUA), Bogota (BOG), Port of Spain (POS), Turks and Caicos (PLS), Medellin (MDE), Nassau (NAS) and St. Maarten (SXM). Availability is very limited for this sale, and flights seem to only depart in December. Be sure to book quickly, as this sale will end tonight at 11:59pm ET.Airline: JetBlueRoute: BOS, FLL, JFK and MCO to AUA, BOG, POS, NAS, MDE and SXMCost: $50+ one-way or $194+ round-trip in economyDates: December 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:New York (JFK) to Turks and Caicos (PLS) for $50 one-way in December:Boston (BOS) to Nassau (NAS) for $50 one-way in December:Fort Lauderdale (FLL) to Bogota (BOG) for $50 one-way in December: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.Boston (BOS) to Nassau (NAS) for 1,700 points + $5.60 one-way in December:New York (JFK) to Aruba (AUA) for $213 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!