Whether you can go straight to security with only cabin baggage in 2026 depends on your flight type and departure country. For domestic flights in most countries (including the US with TSA PreCheck or India with DigiYatra), you can check in online, use a mobile boarding pass, and head directly to security. However, for international flights, you often cannot skip the check-in counter. Even if you have no checked bags, most airlines (especially in India and parts of Asia/Europe) require a physical "Document Check" to verify your passport and visa before they will authorize you to clear immigration and security. If your airline provides a digital "Ready to Fly" status on their app after you upload your documents, you might be able to head straight to the gate, but always check your digital boarding pass for a "See Agent" or "No Boarding" notice first.