What documents are required for check-in when flying with Ryanair?

When flying with Ryanair, the primary documents required for check-in are a valid passport or national ID card. These documents serve as proof of identity and eligibility to travel, as they must meet the specific requirements of both Ryanair and the destination country’s entry regulations. A valid passport or national ID card is typically required for both domestic and international flights, ensuring compliance with international aviation security standards.

A birth certificate is not sufficient for air travel as it does not provide the necessary personal identification that verifies the individual's identity in official capacity. Similarly, a credit card used for booking, while important for payment verification, does not serve as an identification document at check-in. Lastly, an employment identification card is not an accepted form of identification for travel purposes since it does not verify citizenship or identity in the context required by airlines. Thus, having a valid passport or national ID card is critical for securing a boarding pass and successfully boarding the flight with Ryanair.