Have 6 a.m. flight what time should I be at the airport?

Counters close 1/2 hour before departure and a 6 a.m. flight means its leaving the ground at 6 a.m.

You need to arrive 1 hour before your flight for domestic travel and 2 hours before you flight for international travel. These are the policies of Delta and anything less could risk you missing your flight.

I would arrive sround 5-5:30

430 am