Update: Some offers mentioned below are no longer available. View the current offers here.Every so often Delta offers an award “flash sale,” such as flights to Asia from 50,000 SkyMiles round-trip or South America from 36,000 SkyMiles round-trip. The latest version of this promotion is offering award flights to Europe starting at just 48,000 SkyMiles round-trip. This is a pretty great rate when you consider a standard low-level award flight between the US and Europe is typically 30,000 miles one-way. Several European destinations are included in this sale, such as London (LHR), Zurich (ZRH), Madrid (MAD), Dusseldorf (DUS) and Frankfurt (FRA).In order to take advantage of this deal, you’ll have to book by Wednesday, May 16, 2018, at 11:59pm ET, and travel between September 8 and November 15, 2018, or January 10 to March 15, 2019.Route: US to Europe (LHR/ZRH/MAD/DUS/FRA/TXL/NCE/SNN/KEF)Cost: 48,000+ SkyMiles round-trip in economy + taxes and feesDates: September 8 - November 15, 2018 and January 10 - March 15, 2019Pay Taxes/Fees With: Chase Sapphire Reserve, Citi Prestige (5x on airfare), Chase Sapphire Preferred Card (2x on travel) or The Platinum Card® from American Express (5x on airfare)Here are a few examples of dates you can book:Minneapolis (MSP) to London (LHR) for 48,000 miles + $194 round-trip:Los Angeles (LAX) to Zurich (ZRH) for 48,000 miles + $63 round-trip:Miami (MIA) to Madrid (MAD) for 48,000 miles + $58 round-trip:Chicago (ORD) to Frankfurt (FRA) for 48,000 miles + $129 round-trip: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.Delta doesn’t publish an award chart, so there’s no telling exactly how discounted these award sale fares are. But when considering whether or not redeeming is a better option than outright buying a flight, make sure that you’re comparing apples to apples. Delta’s awards book into the main cabin, while the cheapest revenue rates you’ll find on search engines like Google Flights are likely for Delta’s basic economy fares.If you don’t have enough SkyMiles in your account, consider signing up for one of the Delta SkyMiles credit cards from American Express to ensure you’re able to take advantage of an offer like this 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.