As Weather Stays Quiet, Delta Air Lines Has First November Ever With No Mainline Cancellations

Delta said it flew nearly 85,000 mainline flights in November without any system cancellations, and more than 82 percent of flights arrived on time, according to a release. The weather certainly cooperated – few large storm systems were present in the United States, keeping the skies mostly clear.

"High pressure dominated much of the United States throughout November, leading to mainly dry and mild conditions for a large swath of the nation," said weather.com meteorologist Brian Donegan. "The Northwest saw the most active weather last month as storm systems from the Pacific Ocean targeted the region."

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It was "one of the most challenging recovery efforts we've seen as an airline," a Delta operations leader told CNN Money.

Delta also had a pair of outages, one in late January and another in August 2016, when technical outages forced hundreds of flights to either be grounded or canceled, according to a separate CNN Money report.

In Monday's release, Delta's officials said its flawless November is a sign the airline's problems have been fixed.

"Our employees are steadfastly committed to delivering on Delta's promise to be a safe and reliable airline and we're proud of the progress we've made to offer our customers an industry-leading global operation," said Gil West, Delta's Chief Operating Officer, in the release. "We are resolved to continue to improve, to set and break more performance records, and make the experience even better for our customers."