I noticed this feature today when I was about to do online check-in.

I personally do not buy dutyfree on CX.

I buy things on SQ as I can get a PPS discount. SQ also offers preflight oders, if not online, or do they already?


https://www.cathaypacific.com/dutyfree/home.html

Terms and Conditions
1. Preflight order service is available for all Cathay Pacific flights up to 21 days prior to departure date.

2. Any changes to your itinerary subsequent to the placement of order will not be reflected in your Preflight Order. Please visit our Preflight Order website, select "Customer Service", then click on "View / Edit Your Order" to revise your itinerary.

3. The price and style of each merchandise, as well as free gifts, are subject to change without prior notice. Please refer to the most updated information published in Discover the Shop while you are onboard.

4. We will try our best to fulfill your order. However, under circumstances such as flight disruption, aircraft rotation, operational requirements, etc, preflight order may not be successfully arranged.

5. The maximum number of products for each preflight order is 20. The maximum quantity for each product is 20 pieces.

6. Illustrations do not necessarily show the actual size of the items.

7. Cathay Pacific does not guarantee that product description, price, and other content of this site is complete, accurate, reliable, current, or error-free.

8. Information regarding duty-free allowance for various destinations can be found under Important Notes. Although we endeavour to ensure that this information is kept up to date, the allowances could change without notice.

9. Credit card purchase will be charged in HKD. Passport validation against the credit card holder is required. Cathay Pacific honours various kinds of credit cards. Please refer to Important Notes for more details.

10. By using Cathay Pacific's Preflight Order website, you are responsible for maintaining the confidentiality of your account and password, as well as restricting access to your computer, and you agree to accept responsibility for all activities that occur under your account or password.

11. Under no circumstances should Cathay Pacific be liable for any damage caused by any product or failure of such product to perform, whether or not advised of the possibility of such damage, and regardless of the theory of liability pursuant to which such damage may be sought.

12. To earn Asia Miles, a minimum spending of HK$500 (net amount) is required on a single purchase receipt. Free gifts, Home Delivery products and payment by vouchers are not eligible to earn Asia Miles.

13. No Asia Miles can be earned if member does not present his/her Asia Miles membership card at the time of purchase.

14. Upon settling the bill with Citibank Cathay Pacific VISA or RBC Cathay Pacific Visa Platinum, the Asia Miles membership card must be presented to earn Asia Miles at the time of purchase. The Citibank Cathay Pacific VISA or RBC Cathay Pacific Visa Platinum cardholder should be the same person presenting the Asia Miles membership card.

15. Miles earned shall be calculated based on the Hong Kong dollar amount printed on the sales receipt.

16. Tobacco products and alcoholic beverages will not be sold to minors under the age of 18.