Are churches allowed in Saudi Arabia?

Not exactly, they aren't allowed by law, however there are existing churches there today. Meeting in houses or public buildings, all sorts of religions meet regularly. Some aren't known of, others are just ignored. When holding religious meetings one must be very careful not to be caught, and people have been kicked out of the country for holding religious meetings or just having possession of a bible.

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Wrong. There maybe no Churches but non-Muslim have the right to practice in their own homes and also having a bible is legal. If your found at the airport with a Bible it will not be taken of you. You can also buy them from there. Now if you ever heard of people saying "the Bible has been banned in Saudi Arabia" Then that is wrong, because people doing research and get taught Religions will obviously look at the Bible........You can have a Bible in Saudi Arabia!