Hi Shankari!
Thanks for visiting the Disney Parks Moms Panel.
I'm happy to answer your
Disneyland Resort questions!
If you purchase a
Southern California CityPASS you can certainly upgrade from a 3-day Park Hopper to a 5-day Park Hopper ticket!
The value of the 3-Day Park Hopper ticket portion can be applied towards the higher ticket type. You'd just have to pay the difference upon upgrade at any Disneyland Resort ticket booth window.
In terms of how much extra you would have to pay, the current cost of the 5-day Park Hopper ticket is $350 for ages 10+. The current cost of the 3-day Park Hopper ticket for ages 10+ is $315. If my calculation is right, the upgrade charge would be $35 per ticket.
Keep in mind, however, that ticket prices are subject to change at anytime.
I hope you find this information useful.
Have a Magical time at the Happiest Place on Earth!
-Anabel M.