Chick-fil-A stops serving breakfast at 10:30 a.m. Monday through Saturday, with locations closed on Sundays. Breakfast is typically served from the time the restaurant opens, usually around 6:30 a.m., until 10:30 a.m. After 10:30 a.m., Chick-fil-A switches to its lunch menu. This cutoff time may vary slightly by location, but 10:30 a.m. is the standard end time for breakfast service across most Chick-fil-A restaurants.