The German news magazine Der Spiegel reports that American Airlines may soon end its codeshare agreement with fellow OneWorld member Air Berlin. Air Berlin is Germany’s second largest airline but not doing that great. As Der Spiegel notes, the codeshare hasn’t American helped much; American couldn’t even make a summer-seasonal Chicago – Düsseldorf flight despite Düsseldorf being one of main Air Berlin’s hubs.

Your North Carolina impact: No, Air Berlin doesn’t fly to North Carolina. However, the logic of airline alliances is that you want to fly to your alliance partner’s hubs. And in the case of American, their best prospect in Europe after British Airways, Iberia, and Air Lingus was Air Berlin. Now that that relationship is souring, it further reduces the odds of more European flights from Charlotte.