Looking on the internet deeply has found these results:

Prior to the meeting is the most popular phrase on the web.

In advance of the meeting 157,200 results on the web	Prior to the meeting 113,500,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
You should always circulate supporting materials to participants in advance of the meeting. However, deciding how much information to send in advance can�... It is normally appropriate to send a draft copy of the minutes to all the members in advance of the meeting so that the meeting is not delayed by a reading of the�... In advance of the meeting: � Put the plus/delta evaluation on the agenda and use explanation in the attached cover sheet. � Get 3x3 Post It notes (enough for the�... Meeting shall be issued at least twenty days in advance of the meeting by way of a single ... called, the agenda will be sent 24 hours in advance of the meeting.	It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

In advance of the meeting

157,200 results on the web

Prior to the meeting

113,500,000 results on the web

More popular!

You should always circulate supporting materials to participants in advance of the meeting. However, deciding how much information to send in advance can�...
It is normally appropriate to send a draft copy of the minutes to all the members in advance of the meeting so that the meeting is not delayed by a reading of the�...
In advance of the meeting: � Put the plus/delta evaluation on the agenda and use explanation in the attached cover sheet. � Get 3x3 Post It notes (enough for the�...
Meeting shall be issued at least twenty days in advance of the meeting by way of a single ... called, the agenda will be sent 24 hours in advance of the meeting.

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.