Yes, if you have your mobile or printed boarding pass and you are not checking any luggage, you can proceed directly to the TSA security checkpoint (or your local equivalent) upon arrival at the airport. You do not need to visit the airline's check-in counter or kiosks. This is one of the biggest time-savers in modern air travel. However, there are two exceptions to keep in mind: first, if you are traveling internationally, some airlines require a passport verification at the counter before you can head to the gate, though many apps now allow you to scan your passport digitally to bypass this. Second, ensure your carry-on bag meets the airline's size and weight restrictions; if it is oversized, a gate agent may force you to check it, which could involve a fee. In 2026, it's a peer-to-peer best practice to take a screenshot of your mobile boarding pass or add it to your Apple/Google Wallet. This ensures you can access the barcode even if the airport's Wi-Fi is spotty or the airline's app crashes while you are standing in the security line.