Preheat the air fryer to 350℉.
Place the yogurt, flour, and sea salt into a large bowl. Using a silicon or wooden spoon, stir until combined. Then, using your hands press together until a ball has formed.
Transfer the dough to a floured work surface. Knead together until smooth. You may need to sprinkle more flour over the top so that it is not super sticky.
Divide the ball into 4 equal pieces. Roll into a ball and press lightly to flatten. Use the end of a rounded spoon or your finger to poke a hole into the center of the flattened dough. Stretch the middle slightly so the hole does not close when air frying.
Brush each bagel on the top and bottom with the egg wash and top with sesame seeds or everything bagel seasoning. Set aside.
Line the air fryer basket with parchment paper and place the bagels in, seed side down. You may need to do this in 2 batches.
Air fry for 8 minutes, then flip the bagels and cook for an additional 8 minutes.
Remove from the air fryer and allow the bagels to cool for 5 minutes before serving.
Serve with your favorite bagel toppings.