Have ants started nesting in the pot? I hate ants. I hate ants. I just wanted to make sure you understood that...I hate ants.
Having said that, if they have set up a kingdom in your pot then remove the saucer and flood the pot. Do this morning and evening for 2-3 days. I know that the flytrap won't like it, but it sounds like it's doomed if you don't do something. The ants will get the message that the pot isn't a nice place to race their princes and princesses and will move somewhere else. Or, you could snatch the flytrap out of the grow mix, take a magnifying glass and incinerate each screaming ant. Or just dump the mix out on a piece of cardboard and spread it out...the ants will leave. Next take a piece of cardboard, a small square of foam (exercise mat stuff), even a small square piece of plywood and spray it down with ant poison...the "Home Defense" stuff that Walmart sells works pretty good. Then, once you have the plant repotted and ant-free set it on top of the "treated" square of whatever. You'll need to retreat every-so-often. If they're not in the pot and just raiding everything in sight then you might have to move to Greenland to get rid of them.