Preheat your oven to 350°F (175°C). Grease a loaf pan and set aside.
In a large mixing bowl, whisk together the flour, sugar, baking powder, baking soda, and salt.
In another bowl, combine the milk, vegetable oil, eggs, and vanilla extract. Mix well.
Pour the wet ingredients into the dry ingredients and stir until just combined. Do not overmix.
Gently fold in the blueberries.
Pour the batter into the prepared loaf pan and spread it evenly.
Bake for 50-60 minutes, or until a toothpick inserted into the center comes out clean.
Allow the bread to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.