At the gate an agent scans a document that confirms the passenger's right to board a specific flight and assigns a seat. That document is the boarding pass. It links the ticket purchase to the physical act of joining the aircraft.

Modern boarding passes appear as paper printouts, mobile barcodes, or entries in airline apps. They display flight number, departure time, gate, boarding group, and seat. Security checkpoints and gate staff rely on them to control access. Changes to gates or seats trigger updated versions.

Losing a boarding pass once caused significant stress; digital versions have reduced that risk. Still, passengers are wise to keep battery life and backups in mind. The boarding pass is the final credential required before stepping onto the plane.

• Document authorizing a passenger to board a flight
• Shows flight details, gate, and seat assignment
• Issued after check-in
• Presented at security and the departure gate