How to upgrade saudia flight using miles?

I did mine recently. The trick is to book an eligible economy ticket first (not all promo fares can be upgraded). After booking, call the Alfursan service center. They’ll deduct the miles and issue a new ticket in higher class. Personally, I found calling them quicker than relying on the website.

Upgrading on Saudia with miles is pretty straightforward. You need to log into your Alfursan loyalty account, go to "Manage Booking," and look for the option to upgrade using miles. If award seats are available in Business or First Class, you can confirm instantly. Sometimes you can also request the upgrade at the airport counter, but online is usually better since availability is limited. Check the official guide here: Saudia Upgrade Using Miles