You can go ship,car,train,bus or plane
about 148 miles
The distance is about 250km
Istanbul, Ankara, Bodrum, Izmir ... among others.
Bodrum, Antalya, İzmir are most populars.
It should take around 2-3 hours.
Bus is probably the best way to get from Izmir to Dalaman - assuming that you do not have a car. (There will probably be switch in Bodrum or Mugla.)
The nearest airport is Bodrum Milas airport. Izmir is the next closest.
Bodrum, Turkey Bodrum, Turkey Bodrum, Turkey
Some luxury hotels in Bodrum are the following: El Vino Hotel, Ramada Resort Bodrum, Doria Hotel Bodrum, Hotel Samara, The Marmara Bodrum, and Club Med Bodrum Palmiye.
Bodrum's population is 118,237.
Mildest in which sense? Probably the most seasonal climate (and therefore the one that would be the least cold or hot) would be in Western Anatolia, in places like Bodrum or Izmir in Turkey.
Bodrum airport.