Delta is running an unadvertised flash sale on Delta One business class flights to Europe this summer, with award prices starting at 115,000 SkyMiles one-way. Availability currently exists from both the East and West Coasts on many dates between June and August, with the best options appearing to be in Italy, Spain, France, and the UK. While 115k miles is higher than what you can sometimes find through other programs, it's an excellent price for Delta One during peak summer travel, especially on short notice. Delta also does not pass along fuel surcharges, keeping taxes and fees to about $6 outbound and $50 on return flights. Delta credit card holders receive a 15% award discount, bringing the starting price down to just 97,750 miles. These fares likely won't last long, so book quickly if you're interested.