Delta was once-again the US' most on-time airline despite its summer CrowdStrike meltdown.Brandon Bell/Getty ImagesDelta Air Lines remains the most on-time US airline despite a massive disruption.Delta was also the third-most punctual global airline, but United Airlines was on its heels.With a rate of at least 90%, some foreign carriers achieved a better on-time performance than Delta.Despite a chaotic CrowdStrike outage that forced Delta Air Lines to cancel some 7,000 flights over five days this summer, the Atlanta-based carrier retained its title as the US' most on-time airline.Delta was the third-most on-time global airline in 2024, Cirium said in its annual release of airline punctuality, behind Aeromexico and Saudia, with rates of 86.70% and 86.35%, respectively.