In a medium bowl, combine mayonnaise, sour cream, lime juice, garlic powder, ground cumin, salt, and black pepper. Stir until smooth to make the sauce.
Add shredded chicken to the sauce and mix until the chicken is evenly coated.
Lay out the flour tortillas on a clean surface.
Divide the chicken mixture evenly among the tortillas, placing it in the center of each.
Top each with shredded lettuce, diced tomato, shredded cheddar cheese, and chopped red onion.
Fold the sides of each tortilla over the filling and then roll tightly from the bottom to form a wrap.
Wrap each assembled wrap tightly in plastic wrap.
Place the wrapped wraps in a freezer-safe airtight container or zip-top freezer bag.
Label and freeze for up to 3 months.
To serve, remove a wrap from the freezer and thaw in the refrigerator overnight.
Unwrap and enjoy cold or warm in a microwave for 1-2 minutes until heated through.