In general, when booking your flight to Tunisia, January is the cheapest month on average.
Most flyers found that booking flight tickets 48 days in advance of their planned departure date is, on average, the best time to get cheap flights to Tunisia.
From most locations, the cheapest day to fly to Tunisia is Tuesday. Most users found that departing on a Saturday was most expensive.
On average you can find the best deals on plane tickets to Tunisia when looking for flights with noon departure times.