Question : Is there another way to get to Tunis-Carthage International Airport (TUN) besides Sabiha Gokcen International Airport (SAW)?
Answer : Departing from Sabiha Gokcen International Airport is not the only way to get to Tunis-Carthage International Airport. Try searching for flights from Istanbul Ataturk Airport (IST) as well. Over the upcoming months, flights from IST to TUN are being priced 48% cheaper than flights from SAW to TUN. Being only 26 miles away, it's easily accessible for most.
Question : How long do most people visit Tunis?
Answer : Of course you're not most people, but if you were, you'd stay roughly 13 days.