Because oxygen and air pressure decreases in the upper atmosphere, transportation of pregnant women has been restricted to some extent. Pregnant women are advised to consult their doctor before booking a journey and carry documentation listing their expected delivery date.

1. Pregnant women whose pregnancy does not exceed 32 weeks can be transported as regular passengers except when the passenger has been advised by her doctor that she is not fit for air travel.

2. If passengers are over 32-weeks pregnant, they are generally not allowed to board a plane. In the case of special circumstances where passengers are over 32-weeks but less than 36-weeks pregnant, passengers have to file an application with a China Southern Airlines ticketing office before booking tickets and provide diagnosis proof that contains the following information to the airport staff for verification:

• - Name and age of passenger;
• - Date of pregnancy;
• - Flights and dates of travel;
• - Whether or not they are fit for air travel;
• - Whether or not special on-board care is required, etc.

* The aforementioned medical diagnostic certificate must be issued within 72 hours prior to the flight departing, and contain the official stamp of a hospital not below the national level and signed by the doctor before validation.

3. Pregnant women with singleton pregnancy more than 36 weeks or multiple pregnancies of more than 32 weeks will not be allowed to board.