Acropolis Combo Ticket

Only the Acropolis, due to high demand and the limit of 20,000 visitors per day, is subject to an entry time defined by the time slot you have selected.

For all other sites, don't feel obligated to buy your tickets in advance. At worst, you'll have a 10-minute wait at the ticket office.
Is 10 minutes really that long if you're really motivated to see a place?

All third-party platforms, including Get Your Guide, charge additional fees when selling tickets; otherwise, they wouldn't exist.

So is this a good deal? Yes, for Get Your Guide...

JoLui, I am in pretty much the same situation as the OP.

We were planning on the combo tickets which obviously is no longer available.

We won't be in Athens until mid-October, can we risk buying tickets to the Ancient Agora and Hadrian's Library on the day?

I would hate to line up for hours, but I don't mind ten minutes.

I am so pleased to see someone else steer people away from GYG and Viator. Why wouldn't you use a local company and keep the money where it belongs. I do use them for research but never book with them, the same with accommodation on booking dot com. Always book directly.

Thanks in advance.

In October, the Ancient Agora isn't likely to be crowded, in fact you might walk past the main entrance on Adrianou Street without even realizing it's here:

https://maps.app.goo.gl/4rewg5D7LwaGjLH88

There's an alternative entrance on the south side, on Polignotou Street, here:

https://maps.app.goo.gl/2uHhg72HsyuERT137

The same goes for Hadrian's Library, located nearby, near Monastiraki Square (only 1 entrance)

As for third-party services, I admit that paying for a service to buy a ticket for me when I can simply buy it myself isn't what comes to mind first.

Thank you JoLui, I will wait and buy on the day.