Besides, how long of a layover do I need in Istanbul?
Everyone's definition of a long layover can be different and no one likes that last minute dash and panic running to catch a flight. For layover in New Istanbul Airport, we recommend you always have a layover of at least 10–12 hours so you can enjoy your time in Istanbul's city center; however you choose to spend it.
Similarly, is 1 hour layover enough in Istanbul? However since the airport isn't fully functional they generally keep the flights waiting to accommodate all the delays due to incoming ones. So one hour isn't enough but you'll definitely make it to the next flight, which will take off later than scheduled.
Besides, is 2 hour layover enough for international flight?
For international layover flights booked on one airline, two hours is often recommended to make your connection. For international flights on different airlines, the connection time will need to be even greater as you may have to change terminals between the two flights.
Can I leave the airport during a layover in Istanbul?
You can definitely leave the airport and see the city and enjoy yourself. In fact if both of your flights are with Turkish Airlines, then you can have either a free hotel (if you qualify with a "forced layover") or free guided tours, whichever is more convenient for you.