Greetings Brian!
Thanks for stopping by planDisney with your question! I’m happy to hear that you are considering upgrading your single ticket to a
Disneyland Resort Magic Key! It would allow you to experience the magic of the Disneyland Resort for an entire year instead of just one day!
You may upgrade your ticket to a Magic Key right from within the
Disneyland Mobile App. The cost of your ticket will be applied to the price of the Magic Key. You’ll find the option to upgrade in the app under the “Tickets & Passes” section once you’ve entered the theme park using the main entrance turnstiles. However, you may want to wait to upgrade until the very end of your visit. Your
Theme Park Reservation is linked to your current theme park admission ticket and upgrading to a Magic Key at the beginning of your visit will cause your current reservation to be deleted. Then you’d need to book a new reservation, subject to the
Magic Key Availability Calendar.
Also, I can confirm that California residents have the option to choose monthly payments for the purchase of a Magic Key. Because this option is only available to California residents, please be sure you're logged in to your Disneyland Resort account prior to initiating the upgrade. At the final payment screen, you’ll notice a button to select the monthly payment option.
Wishing you a fun-filled year as a Magic Keyholder! Feel free to come back with your questions all year long!
Tiffanie