For a domestic flight, it is generally recommended to arrive at the airport at least 1.5 to 2 hours before the scheduled departure. This time frame allows for check-in, security screening, and getting to the gate without rushing. If traveling only with carry-on luggage and having checked in online, arriving about 1 hour before may be sufficient, depending on the airport and potential queues. It is also advised to check the specific airline's recommended arrival time as these can vary.
