how soon prior to our flight do we have to be at the airport

2 hours. TSA can be a nightmare

always try to be there a few hours before your flight to give yours plenty of time..

If you have TSA precheck then 2 hours prior should be more than enough.

Depends on what type of flight. If international try to arrive 4-6 hours prior. If domestic 2-3

At least 2 hours !

Be there at least 2 hours it's Christmas time the airport is full