Your trip is over and you are very lucky if you had the opportunity to visit Istanbul to the fullest. The return journey from Istanbul takes place with different alternatives than Taksim. Unfortunately, there is no IETT line to the airport for this. You can go to Mecidiyeköy by metro from Taksim and get off here, then take the H-2 IETT bus to reach the airport from this location. You can reach the airport by taking Havaist from Taksim station. Havaist departs in front of the Point hotel. If you do not want to use any of these methods and want to travel alone, you can go to istanbul airport to taksim by taxi. Taxi prices vary. Before boarding, you can get information about the approximate fare from the taxi driver. It takes about 90 minutes by bus, 50 minutes by taxi.