1. You can apply for an electronic invoice on the airline official website or APP, and the airline will send the electronic invoice to your email or online account.
2. You can call the airline customer service phone to provide order information and personal information, and the customer service staff will issue an electronic invoice for you.
3. If the ticket is purchased on a third-party platform, you can apply for issuing an electronic invoice through the customer service phone of the platform.
4. If you buy an air ticket+hotel package, you can contact the after-sales customer service of the package to apply for an electronic invoice.
It should be noted that some airlines may charge a service fee for issuing electronic invoices. Please consult the airline customer service for specific fees and issuing methods. In addition, different electronic invoice platforms may have different issuing methods and requirements, so you can choose the appropriate way to issue electronic invoices according to the specific situation.