It’s been 6 dates now what…

I have been on 6 dates with this girl. We are both 29. Each of our dates we have grown more comfortable with eachother and spent more time over the course of each date. We hold hands and kiss each other. We talked a little about our dates and if we were talking to anyone else. She said she isn’t and I said I just want to talk to her. She is overseas on a vacation for 10 days and gets back at the end of the week. Is it time to ask her to be official? I was thinking after a date or two when she gets back to ask.