KLM and Air France offer some amazing great half-off deals for reward travel, and right now they’ve got an especially great offer considering how ridiculous airfares are to Europe. For travel through the end of June, you can fly to Europe from Chicago on KLM for 25,000 Flying Blue miles round trip in coach, or 50,000 in business class. Business class is available from Washington to Europe for 50,000 miles round trip.
On Air France, coach tickets are available at 25,000 miles round trip from Houston to Europe in coach, and double that in business class.
Assuming you don’t fly Air France (or credit your Delta flights to Flying Blue), you can transfer 20,000 Starwood points to Flying Blue to get the 25,000 miles necessary for the coach tickets. You can also transfer Membership Rewards points (1:1). It’s a solid deal.