Vacationers throughout the nation confronted the prospect of canceled or delayed flights on Saturday as airways and airports handled a mixture of excessive demand, unhealthy climate and staffing shortages.

As of late Saturday afternoon, greater than 600 flights in the USA had been canceled and almost 4,400 flights inside, into or overseas had been delayed, according to the flight tracking website FlightAware.

Whereas the variety of drawback flights was larger than on a typical journey day, journey demand was additionally larger. According to the Transportation Security Administration, the variety of vacationers over the Fourth of July vacation weekend had reached prepandemic ranges. Journey demand over the identical vacation weekend final yr had considerably recovered from pandemic lows however was nonetheless under this yr’s ranges.

FlightAware knowledge confirmed that the three airports in the USA most affected by cancellations and delays on Saturday had been Dallas-Fort Price Worldwide Airport, O’Hare Worldwide Airport in Chicago and Charlotte Douglas Worldwide Airport in North Carolina.

The variety of canceled and delayed flights was far under the degrees over this previous Christmas and New Yr’s holidays, when unhealthy climate and Omicron-related workers shortages wreaked havoc with airline schedules.

Nonetheless, the airways are scrambling to maintain up with demand this July 4 vacation, as they battle with a pilot scarcity, climate circumstances and air site visitors management delays.

“Delta groups proceed to securely handle via the compounding components of inclement climate and air site visitors management delays, which impression accessible flight crew responsibility time,” a Delta Air Traces spokesman stated in an electronic mail. “Canceling a flight is at all times our final resort, and we sincerely apologize to our clients for any disruption to their journey plans.”

Delta stated it was providing clients the power to reschedule flights from July 1 via July 4 with no fare change if they’re touring between the identical origin and vacation spot.

United Airways additionally blamed climate and air site visitors management applications for its delays.

Including to the stress at American Airways was a pc glitch in its pilot journey buying and selling system that, the airline stated, allowed some journey buying and selling that “shouldn’t have been permitted.” However American stated it didn’t “anticipate any operational impression due to this challenge” and added that the “main drivers of delays/cancellations” on Saturday had been “climate and site visitors management points.”

The Federal Aviation Administration stated the highest reason for the flight delays and cancellations was climate circumstances adopted by journey demand. The company added in an announcement: “The F.A.A. has acted on the problems raised by airways, and is working with them to share info to maintain plane transferring safely when climate and different airspace occasions constrain capability. The company additionally has added alternate routes and positioned extra controllers in excessive demand areas, and elevated knowledge sharing.”