Preheat your oven to 350°F (175°C). Grease and flour a loaf pan.
In a large bowl, whisk together the flour, sugar, baking powder, and salt.
Add the cranberries and orange zest to the dry ingredients and mix to combine.
In another bowl, whisk together the orange juice, milk, eggs, and vegetable oil.
Pour the wet ingredients into the dry ingredients and stir until just combined. Do not overmix.
Pour the batter into the prepared loaf pan and smooth the top.
Bake for 55-60 minutes, or until a toothpick inserted into the center comes out clean.
Allow the loaf to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.