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.Delta frequently has flash sales for award flights featuring fantastic deals such as flights to Asia for 50,000 SkyMiles round-trip, South America from 36,000 SkyMiles round-trip or Europe from 32,000 SkyMiles round-trip. Back in April we shared an unpublished promotion which offered award flights to Mexico for as little as 12,000 SkyMiles round-trip and it’s back! The discounted awards are available from at least a dozen cities throughout the US and we’re seeing availability through May 2019. The sale includes a ton of non-stop flight options from Delta’s hubs, as well as options over holidays like Columbus Day and Veterans Day. The only downside with these awards is that taxes will set you back at least $80.It’s unclear how long this promotion will last, so it’s better to book sooner rather than later. Since Delta doesn’t publish an award chart, its award rates are notoriously dynamic and fluctuate based on the carrier’s whims, but standard low-level award flights between the US and Mexico are typically never fewer than 17,500 SkyMiles one-way (35,000 miles round-trip).Airline: DeltaRoutes: US Cities (ATL/BNA/BOS/BWI/FLL/JFK/LAX/MCO/MIA/MSY/ORD/SAN) to Mexico (MEX/CUN/CZM/ZIH/SJD/PVR)Cost: 12,000+ SkyMiles and $80+ round-trip in economyDates: June 2018 – May 2019Booking Link: Directly with the airlinePay Taxes/Fees With: The Platinum Card® from American Express (5x on airfare), Chase Sapphire Reserve, Citi Prestige (5x on airfare) or Chase Sapphire Preferred Card (2x on travel)Here are a few examples of what you can book:Los Angeles (LAX) to Cancun (CUN) for 12,000 miles + $80 in taxes and fees round-trip in July:New York (JFK) to Cancun (CUN) for 12,000 miles + $80 in taxes and fees round-trip in November:New York (JFK) to Mexico City (MEX) for 12,000 miles + $105 in taxes and fees round-trip in September: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.Miami (MIA) to Mexico City (MEX) for 12,000 miles + $110 in taxes and fees round-trip in January:Baltimore (BWI) to Puerto Vallarta (PVR) for 16,000 miles + $88 in taxes and fees round-trip in November:Maximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases to pay the taxes and fees, such as the American Express Platinum Card (5x on flights booked directly with airlines or American Express Travel), Chase Sapphire Reserve, or Citi Prestige (5x 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 don’t have enough SkyMiles in your account, consider signing up for one of the Delta credit cards to ensure you’re able to take advantage of a deal next time one pops up. For example, the Gold Delta SkyMiles® Credit Card from American Express currently comes with a bonus of 30,000 bonus miles after you use your new Card to make $1,000 in purchases within your first 3 months and a $50 Statement Credit after you make a Delta purchase with your new Card within your first 3 months. Terms Apply.H/T: TPG Reader Gregg