You have to admit, it was a bit silly getting a kitten when you were planning to go away. However, that is in the past and can not be altered.
If you can get someone to housesit properly, that would be the best option but please don't leave it alone with someone coming to feed it daily.
If not, a cattery is just fine but again, make sure it is a reputable one, even if you have to travel a bit further or pay a few more pence. They have experience and will know how to treat your kitten.