Hi Hanneke,
Thanks for getting in touch! I’ll help you here…
While it might no be impossible to create a checkout link from the price, that would be a customization we are not able to help you with (and it will probably get far to complicate). Linking the price to the tickets form in the single event page would be a much more simple approach.
To add the link you’ll need to create a template override (more info on how to do on the themer’s guide), and create the link. For the link URL you can use the following code:
https://gist.github.com/niconerd/edad89c8093293e69028c2905693e910
Please let me know if you still need help on it,
Best,
Nico