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.
Your airline's website will also have specific information about the number and size of bags allowed, as well as information about any applicable fees. Most airlines recommend passengers check in at minimum 2 hours prior to a domestic flight and 2 1/2 hours prior to an international flight. Please check with your airline for its specific check-in requirements.