Welcome to planDisney, Donna! Spring is the best time to visit Walt Disney World, and I am so excited to see that your arrival date coincides with the opening of
TRON Lightcycle / Run at Magic Kingdom Park! Eek, your adventure is set to be even more magical now.
Donna, back to your question. Yes, you can pay for parking at Disney Theme Parks with a credit card. In my experience, the only place where cash has been requested was by some of the balloon sellers and the roaming carts selling light-up toys. Everywhere else, I have been able to use card payments.
A couple of things to note, if you are a Disney Resort hotel Guest (you can show your reservation through My Disney Experience), you will receive
complimentary standard theme park parking. Second - parking is free for Guests attending the Disney Water Parks. Right now,
Disney's Blizzard Beach is open.
Donna, I hope this information helps and that you have the most amazing trip to the Most Magical Place on Earth. Wishing you blue skies and sunshine, Louise.