 The 4th of July isn't until Thursday, but the travel rush for the holiday is already well underway. American Airlines says this year is going to be their busiest ever 4th of July, up 8% over last year. Delta expects nearly 6 million customers through next week. The calendar still says June, but travelers are getting a jump on the 4th of July travel week. Talia Gibson and her 7-year-old daughter at Newark Liberty International to catch a flight to Florida to visit grandma.