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.Update: Some offers mentioned below are no longer available. View the current offers here.Good news if you’re looking for a deal to Mexican or Caribbean beach destinations and have some Delta SkyMiles burning a hole in your pocket. Delta is back with another flash sale on award flights.And while there have been some great flight deals to Cancun recently, this promotion makes using miles competitive. According to current TPG valuations, 12,000 SkyMiles are worth just $144. If interested, make a quick decision as tickets must be purchased no later than July 11, 2018.While Delta only lists the following routes, we are finding that this award sale is much more extensive. So, hop onto Delta.com and search around for the route of your choice to see how it’s pricing out.Airline: DeltaRoutes: JFK/LAX/BOS/ATL to CUN/MEX/SJD/SJU… and many moreCost: From 12,000 miles plus taxes/fees starting at $11 round-tripBook by: July 11, 2018Dates: September 7-October 15, 2018Restrictions: Terms note that a Saturday night stay is required, but this restriction isn’t being applied in practice.New York Kennedy (JFK) to Cancun (CUN) for 12,000 miles + $78 round-trip:Los Angeles (LAX) to Los Cabos, Mexico (SJD) for 12,000 miles + $87 round-trip:Los Angeles (LAX) to Mexico City (MEX) for 12,000 miles + $103 round-trip:New York Kennedy (JFK) to San Juan (SJU) for 16,000 miles + $11 round-trip:Boston (BOS) to Cancun (CUN) for 16,000 miles + $84 round-trip:Boston (BOS) to San Juan (SJU) for 16,000 miles + $11 round-trip:Atlanta (ATL) to Cancun (CUN) for 18,000 miles + $78 round-trip:Although you won’t be able to earn a welcome bonus in the next few days (since the qualification period is the first three months from account opening), consider applying for a Delta credit card the next time the carrier has a sale. Right now, the Gold Delta SkyMiles® Credit Card from American Express 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.If you have a business, the Platinum Delta SkyMiles® Business Credit Card from American Express is offering 5,000 Medallion® Qualification Miles (MQMs) and 35,000 bonus miles after you spend $1,000 in purchases on your new Card in your first 3 months and earn a $100 statement credit after you make a Delta purchase with your new Card within your first 3 months.H/T: The Gate