Hi, Priscilla!
Welcome to planDisney, and thank you for sharing your question with us. Let me see if I can help you!
The monthly payment plan was available to eligible Guests when Magic Key Passes were on sale. If the Disneyland Resort resumes Magic Key Pass sales, you will see this option if you log into your Disneyland account before selecting your Magic Key Pass. Since sales are paused now, it's wise to keep an eye on the
Disney Parks Blog to know if new Magic Key Passes are issued.
Until the
Disneyland Resort resumes Magic Key Pass sales,
regular theme park tickets are the best option to visit Disneyland Park and Disney California Adventure Park. I always recommend getting Park Hoppers so that you can go back and forth to maximize your time, and I hope this strategy works for you!
May the magic be with you,
Julie