The July Fourth holiday in the U.S. kicks off with this week with vacationers expected to begin hitting the road en mass on Thursday. That’s when an estimated up to 2.7 million daily travelers are expected to take to the sky with a robust 12.9 million flyers over the entire long weekend, according to a new forecast from Hopper.

To put the numbers in perspective, the U.S. Transportation Security Administration’s (TSA) busiest day to date since the beginning of the pandemic was June 26 when agent’s screened 2.46 million people. Hopper’s estimate sees almost another 300,000 flyers traveling through airports across the country on Thursday and Friday, and an average of 2.6 million daily over the long weekend — or the five days from June 30 to July 4 — even as airlines and airports are already struggling with the surge of summer travelers.

(Hopper)

“With flight delay and cancelation rates well above 2019 averages, travelers should prepare for potential disruptions traveling over the long weekend,” Hopper said. However, with many airlines proactively cancelling flights ahead of time, the number of delays has decreased in recent days.

The busiest airports are of no surprise: Atlanta, Dallas-Fort Worth, and Denver — mega-hubs for Delta Air Lines, American Airlines, and United Airlines, respectively — top Hopper’s list. Los Angeles is also forecast among the busiest.

Tags: american airlines, delta air lines, hopper, united airlines