At just over 2,500 feet, it's the highest point on the TMT. In spring, look for red currant blooming here. From Tom's Crossing, the West Tiger #2 Trail heads steeply uphill providing another way to reach that summit. Continue down the TMT on many switchbacks and, in about 0.3 mile, note the junction with the K3 Trail.
I rarely show up more than 1.5 ahead of time. Another idea: technically, the ticket counters usually open 24 hrs before your flight, and sometimes this is the only way to easily get special seats like exit rows.
Before you fly. Before you head to the airport, especially if this is your first airline flight in a while, you should take the time to get familiar with common security rules and basic baggage rules, and remember to keep valuable or critical personal items in your what to put in your carry-on baggage and not in your checked luggage.