Preheat the oven to 350ºF. Spray two loaf pans with cooking spray.
In a medium bowl whisk together flour, baking powder, sugar and salt.
In a large bowl whisk milk, vegetable oil, eggs, poppy seeds, almond, and vanilla extract until combined. Gradually whisk the flour mixture into the milk mixture until well combined. Fold in the blueberries with a rubber spatula.
Divide the batter between the two pans and bake until golden on top and a toothpick inserted into the center comes out clean, 1 hour to 1 hour and 10 minutes. Transfer the pans to a rack and let cool about 10 minutes before removing from the pan and placing on the rack to cool completely.