Where can I check the e-invoice for air tickets?

I haven’t received an electronic invoice for the air ticket. I usually fill in my address when buying the ticket. Ctrip will mail it to you after the trip is over, but the express fee of 20 yuan is expensive enough.

Who told you that there are electronic invoices for air tickets? I have said it countless times, the air ticket reimbursement is an itinerary, which is stipulated by the Civil Aviation Administration, and there is no invoice, let alone an electronic invoice.

There are usually two ways to obtain the invoice of the electronic ticket, that is, the set-off voucher:<br/>The first method: through the ticket agent (in your example, it is Ctrip.com), if the part about the invoice is not involved in the booking process, Or if you want an invoice after booking a ticket (without an invoice) for some reason, you can call the service provider (the booking phone number provided on the website is also acceptable) to communicate, and usually it will be accepted. The way to get it is by mail, please prepare the relevant information of the receiving address. <br/>Second method: ask for an invoice at the airport, usually at the counter where you get the boarding pass, less often at the counter of the air ticket carrier, that is, the airline, if neither the airline counter nor the airport ticket counter is printed Equipment, or when the invoice cannot be issued for various reasons, you can ask or negotiate to deal with it. The method of obtaining is on-site collection. <br/>Recommend the first method, simple, convenient and reliable.

It should be able to be included in my bill, but if it doesn't work, you can contact customer service.