Upgrading tickets...?

[two*little*birds]

If I buy a 2-day pass and then decided to add an extra day, do I just pay the difference (usually a few bucks)? I know Disney does this but have no idea about Universal.

Thanks!

 

[Metro West]

If I buy a 2-day pass and then decided to add an extra day, do I just pay the difference (usually a few bucks)? I know Disney does this but have no idea about Universal.

Thanks!

Yes...you can upgrade at Guest Services.