Fill a large pot about ¾ of the way up. Bring to a vigorously boiling point, then add the salt. Stir in the pasta and return to a boil. Cook pasta uncovered, stirring occasionally, until al dente, about 9 minutes; rinse with cold water and drain well.
In a large bowl, combine the cooked pasta with chickpeas, tomatoes, cucumbers, olives, onions, and salt; toss to combine.
In a small bowl, whisk red wine vinegar, olive oil, Dijon mustard, oregano, garlic powder, salt, and black pepper.
Pour vinaigrette over the pasta salad and toss to combine. Top the salad with feta cheese, cover, and refrigerate for 2 hours for the flavors to develop.
Garnish the pasta salad with dill and enjoy!