As 4 boys and 1 girl are going to head to Iran, will it be acceptable to share hotel rooms and sleeper carriages even though we're all just friends? I have also been trying to find flights from Shiraz to Kish and back to Tehran.
It is not forbidden for the foreigner citizens to share a room even if they are not married.
You can also check Iran flight ticket booking for the flight booking.
Check the cheapest Iran tours .