Can I choose a seat by plane? I reserved economy class at the flight controller's house. I have the option to reserve seats on the plane in two days.

Hello! According to your ticket number, the ticket you booked belongs to HNA. On 20 18, HNA opened the offline check-in service on a third-party platform, so you need to check in at HNA official website. At present, there are other airlines with similar policies: Air China and China Southern Airlines.

Attachment: reasons for not being able to check in and choose seats.

1. The check-in seat selection time has not arrived or passed. The airline has not yet opened the check-in seat selection service. It is recommended to reserve seats through airline official website or air ticket reservation platform 1 day before departure. If you go to the airport to choose a seat, you can choose a seat through the airport check-in counter or self-service check-in system 2-3 hours before departure.

Attachment: The specific opening hours of airline online check-in service are as follows: after 16:00 every day, domestic flights departing the next day can be processed, and the processing will be stopped 2 hours before the flight takes off.

2. Some airlines do not support the check-in service of third-party platforms. For example, Air China, China Southern Airlines and Hainan Airlines.