In all my years of worldwide travel I never missed a flight. I always make it a point to arrive at the airport at least 2-3 hours before the flight as I would rather sit in the lounge and relax as opposed to being stressed out. I also fly out of SJC where the airport is small and get a flight as early in the morning as possible when the roads are clear. If I am out of LAX or SFO my rule is to arrive at the airport between 2-3 hours before the flight just in case. I always pint my boarding pass at home too.

I would rather plane spot, enjoy a drink in a lounge and enjoy a cup of coffee before the flight. When checking luggage I go to the counter and then go through security right away to avoid the delays. It helps arriving early to reduce stress.

However I know there are unforseeable circumstances which makes one miss their flight. I am Jewish and I feel bad that you missed the Seder. I know how it feels needing to attend a religious ceremony only for you to miss the flight.