When travelling,are you always 3 or more hours early or late?

I usually arrive at the airport about one hour earlier than the check in desk is likely to be open. It would be so stressful to be late and to miss my flight. One time I was traveling with my older son when he was 5 years old. The London Underground's Circle train took ages to arrive and it made us arrive late at the mainline train station in London. It was a stopping at all stations slow train and so we arrived at the airport late. We only just made it to check in on time. There wasn't enough time to get foreign currency. We didn't get a window seat for me quite annoying. Amazingly there wasn't an currency exchange bureau at the small airport in Sardinia. I had to exchange a small amount of money to get to the town our accommodation was in. I arrived at Tel Aviv Airport early but had to stand in a long line of people. Then I was given an interview about what I had been doing and where I had been staying. Well I had visited Tel Aviv, Jerusalem, Bethlehem, Eilat, Aqaba and Petra so the officer was suspicious of me. They told me to a room and did a detailed search of my luggage. In the end they let me go because I was just and still am an innocent traveler. I almost missed my flight but that wasn't my fault. Early is so much better than late.

If I am traveling locally, then it's usually about an hour or an hour and a half early. That is the requirement anyway. With international flights, with so much security screening nowadays, I usually arrive at the airport, about three hours early. I don't want to miss my flight just because I am still on the security screening sites.