Reduce your wait time at the airport check-in counter by checking into your flight online, reducing or eliminating check-in luggage, and placing your identification in an easily accessible spot in your wallet or purse. It is also helpful to arrive at the airport well before the flight takes off and weigh your bags at home.
Checking into your flight online allows you to significantly reduce your wait time at the airport because you don't need to go through the process at the counter. In some cases, checking in online enables you to print you boarding pass at home, which further reduces your wait time by eliminating another task that may require the aid of a ticketing agent. The same is true if your flight supports mobile boarding passes through an image or smartphone app.
Reducing the amount of check-in luggage also helps you reduce wait times, as the agent has fewer bags to process. If possible, with the bags at home to ensure that you comply with all weight requirements and don't need to repack at the airport. If you can avoid checking in any luggage at all, you may be able to use a self-service check-in kiosk to speed up the process. While at home, make sure you have your identification, such as a driver's license or passport, and credit cards in an convenient location so that you don't have to search for them in line.