 If you're flying in the U.S. this holiday weekend, what time is a good time to get to the airport? CBS's Deborah Rodriguez has the answer. Travel experts tell the Wall Street Journal people with carry-on bags only can shave off about 30 minutes. Same if you download your boarding pass ahead of time. Subtract 20 minutes for TSA pre-check, clear, and premium fares. If you're traveling with pets, kids, or have to return a car, get there even sooner.