Rinse four clean 1-cup plastic containers with lids with boiling water. Dry thoroughly.
Preheat oven to 250°. Place sugar in a shallow baking dish; bake 15 minutes. Meanwhile, finely grate 1 tablespoon peel from orange. Peel and chop orange.
In a large bowl, combine blueberries, warm sugar, grated peel and chopped orange; let stand 10 minutes, stirring occasionally. Add pectin; stir constantly for 3 minutes to evenly distribute pectin.
Immediately fill all containers to within 1/2 in. of tops. Wipe off top edges of containers; immediately cover with lids. Let stand at room temperature 24 hours.
Jam is now ready to use. Refrigerate up to 3 weeks or freeze up to 12 months. Thaw frozen jam in refrigerator before serving.