It (and your vocal folds) must be in proper operating condition.
Yes, when you have a connecting flight, you typically have to go through security again before boarding your next flight.
Yes, you can transit through Incheon Airport for your connecting flight.
6 hours
Yes, you will likely have to go through security again for your connecting flight.
Become familiar with all available information concerning the flight.
This flight will cost $1512.00, through Delta airlines nonstop flight.
Yes, passengers connecting through Atlanta on an international flight will need to go through customs and immigration.
Yes, passengers connecting through Dublin on an international flight typically have to go through customs and immigration.
Yes, you will likely have to go through security again for your connecting flight.
You can typically go through security 2-3 hours before a flight.
No they don't have a flight school but do have a flight club. You can learn how to fly through the flight club: http://studentorgs.utexas.edu/flying/
Yes, you will likely have to go through security again for your connecting domestic flight.