Update: Some offers mentioned below are no longer available. View the current offers here.JetBlue has been known to offer some crazy promotions in the past. And while this one is not $29 for a cross-country flight, it does offer a solid 20% off all domestic flights and 15% off all international flights. The discount is off base fare only, and it does not include government-imposed taxes and fees. The promotion is valid for all flights between September 7 and November 9, with the period from October 1 to October 10 being blacked out. Travel may not occur on Fridays or Saturdays with this deal.JetBlue currently has a two-day promotion.To use this promotion, you must book at jetblue.com/promo and enter the promo code: FALL2016. When searching you should see a crossed out price on the search page followed by a reduced price. The promotion code is valid through Wednesday, August 24, at 11:59pm EST. Remember to enter the code FALL2016 in the promo code box.Here are a few examples you can book:Domestic Flights Are 20% Off:20% off flights from New York (JFK) to Fort Lauderdale (FLL).International Flights Are 15% Off: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.15% off flights from Fort Lauderdale (FLL) to Ecuador (UIO).Maximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases, such as the 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). You can also earn an additional 6x points with the JetBlue Plus Card. Check out this post for more on maximizing airfare purchases.H/T: Point Me to The Plane[card card-name=‘The JetBlue Plus Card’ card-id=‘220811272’ type=‘javascript’ bullet-id=‘1’]