Preheat the oven to 375 degrees. Cut flour tortilla into 8 even wedges. Repeat with 3 other tortillas and place them in a medium bowl. Coat with melted butter and toss so the butter is evenly distributed. Mix cinnamon and sugar together in a small bowl until combined. Sprinkle over tortilla wedges and then toss to combine.
Place coated tortillas onto baking sheet lined with parchment paper. Make sure they are in one even layer and not touching one another. You may need a second baking sheet to fit them all.
Bake in preheated oven for about 5 minutes and then flip the tortillas and bake for another 5 minutes or until they just begin to turn golden.