These U.S. Airports Are Most Likely to See Flight Delays

Nearly one in four U.S. flights now arrives late, and new analyses of government and industry data show that a handful of airports account for a disproportionate share of those delays.

Data Shines a Spotlight on Persistent Delay Hotspots

Publicly available figures from the Department of Transportation and airport performance analyses show that delays are far from evenly spread across the United States. While every major hub deals with bad weather and busy holiday peaks, a smaller group of airports regularly posts below average on time records over the course of a full year.

Recent rankings of major U.S. airports by delays point to Long Island MacArthur Airport in Islip, New York as one of the worst performers in the latest datasets, with just over 60 percent of flights arriving on schedule. Despite handling far fewer flights than the largest hubs, its constrained runway capacity and its location within the congested New York airspace have kept its delay rate elevated.

Consumer reports and airline performance trackers also point to Florida as a recurring trouble spot. Analyses of millions of domestic flights between 2020 and 2024 indicate that four of the seven worst performing large airports for on time arrivals are in Florida, a state where thunderstorms, tropical systems, and heavy leisure travel combine to create regular operational bottlenecks.

Across the network, government statistics for 2025 show that nearly a quarter of domestic flights failed to arrive on time during the second quarter, marking the tardiest performance since 2014. That high baseline means any airport already struggling with capacity, weather, or routing constraints is more likely to experience chronic delays.

Major Hubs Where Delays Are Most Common

Among the country’s largest and busiest hubs, Dallas Fort Worth International, New York’s John F. Kennedy International, Miami International, and Chicago O’Hare frequently appear in recent reports as airports where travelers face a higher than average risk of disruption. These hubs handle tens of millions of passengers each year and serve as critical connecting points for domestic and international networks.

Dallas Fort Worth is highlighted in consumer disruption reports for 2024 and 2025, with roughly 31 percent of departing passengers affected by delays or cancellations in one recent year. Heavy connecting traffic and summer thunderstorms across North Texas can ripple through flight schedules, magnifying the impact of any operational hiccup.

New York’s JFK, along with Miami International and Charlotte Douglas International, stands out in a 2024 analysis of the 100 most searched departure airports in the United States. That study found that each of these airports saw more than 40 percent of flights departing behind schedule, placing them among the least punctual large hubs in the country during the period reviewed.

Chicago O’Hare also has a long standing reputation for weather related disruption, reinforced by widely reported post holiday storms in late 2025 that produced hundreds of cancellations and delays. Its role as both a Midwest connecting hub and a gateway to international routes means that snow, ice, and low visibility can quickly cascade into missed connections and rolling delays.

Florida and Mid Atlantic Airports Struggle With On Time Performance

Travelers who frequent Florida and the Mid Atlantic region are especially likely to encounter late departures and arrivals. Independent analyses using Bureau of Transportation Statistics data consistently rank Fort Lauderdale Hollywood International and Orlando International among the worst large airports for on time performance.

One national review of delay and departure data for late 2023 placed Fort Lauderdale at the bottom of the list for on time departures among large U.S. airports, with fewer than seven in ten flights leaving on schedule in December of that year. Orlando also performed poorly, with its on time percentage hovering in the mid 70s during the same period. Both airports face frequent thunderstorms, a high proportion of leisure traffic, and seasonal surges tied to school holidays.

Baltimore Washington International, serving the broader Washington region, has also appeared in recent league tables of weak on time performance. In the same December snapshot that put Fort Lauderdale at the bottom among large airports, Baltimore ranked only slightly higher, reflecting a mix of winter weather exposure and heavy low cost carrier traffic.

Other medium sized airports in the Northeast corridor, including Long Island MacArthur, are increasingly prominent in 2025 delay rankings as traffic patterns shift and smaller facilities take on new routes. These airports may not see the same absolute number of delays as the big hubs, but their limited infrastructure can make it harder to recover once schedules begin to slip.

Weather, Capacity and Network Design Drive Delay Risk

Behind the rankings, several common factors explain why certain airports are more prone to disruption. Weather remains the most visible driver, and analyses of 2025 cancellation data suggest that nearly three quarters of canceled flights in the United States during the first half of that year were attributed to storms, winds, and other unsafe conditions.

Major hubs like Chicago O’Hare, Denver International, and the New York area airports sit in regions that face both severe winter storms and intense summer thunderstorm seasons. When those weather systems intersect with peak travel windows such as Thanksgiving or summer holidays, even modest schedule disruptions can quickly turn into widespread delays.

Capacity is another constraint. Airports operating near the limits of their runway and airspace throughput have less flexibility to absorb shock. That dynamic is currently in focus at San Francisco International, where the Federal Aviation Administration has temporarily reduced hourly arrivals from 54 to 36 while a runway construction project proceeds and new safety rules on closely spaced parallel runways take effect. Cuts of that magnitude leave fewer options to reroute or squeeze in late running flights.

Finally, network design plays a role. Airports that function as primary hubs for a single carrier or alliance can see delays compound when that airline experiences operational problems. The 2024 technology disruption at a major carrier, which grounded flights at Atlanta and other hubs for multiple days, showed how quickly crew scheduling and aircraft positioning issues at one airport can spill over nationwide.

How Travelers Can Use Delay Data to Plan Ahead

For travelers, the growing volume of performance data offers a practical tool to reduce the odds of getting stranded. Government air travel consumer reports, airline punctuality dashboards, and independent analyses from travel platforms and research firms all provide airport specific on time statistics that can be checked before booking.

Experts who study delay patterns consistently recommend booking earlier departures at the most delay prone airports, since morning flights are less exposed to the knock on effects of earlier disruptions. At hubs like JFK, Miami, Fort Lauderdale, and Dallas Fort Worth, selecting a morning connection rather than an evening one can significantly improve the chances of arriving on time.

Choosing longer connection windows is also important when routing through airports with weak on time records. A 35 minute layover at a delay heavy hub may meet minimum connection standards but often leaves little margin if inbound flights arrive late. Extending that buffer by even 30 minutes can reduce the risk of misconnecting when traveling through these bottleneck airports.

Ultimately, the data indicates that delays are now a structural part of U.S. air travel rather than an occasional inconvenience. Knowing which airports are statistically most likely to run late, and adjusting itineraries accordingly, gives passengers the best shot at staying ahead of the disruption curve.