While PayPal transactions tend to be very fast, the withdrawal casino process can take a little longer. This is because most payout casinos have a withdrawal processing time during which they review your account status to ensure everything's in order, e.g. that you don't have any outstanding bonuses, etc. Your withdrawal request can remain pending for anything from a few minutes to a few days depending on the site. Once approved by the online casino, your payout will then be processed according to PayPal's timeframes.