Lightly brush the bottom of the air fryer basket with vegetable oil. Preheat the air fryer to 360 degrees F (180 degrees C).
In a large bowl, combine the shredded chicken, cooked rice, salsa, and salt until thoroughly mixed.
Spoon about 1/2 cup of the chicken filling into the center of each tortilla. Fold in the ends and roll up tightly to seal.
Place two chimichangas, seam side down, in the oiled air fryer basket. Lightly brush the tops with vegetable oil.
Air fry for 4 minutes at 360 degrees F (180 degrees C). Flip the chimichangas with metal tongs and air fry for another 4 minutes until golden brown and heated through.
Serve the chimichangas immediately, topped with white queso cheese sauce, shredded lettuce, diced tomatoes, and sour cream.