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Weather causes significant flight delays at major US airports

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Weather causes significant flight delays at major US airports
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Federal Aviation Administration | Official Website

According to the Federal Aviation Administration (FAA), weather is the leading cause of flight delays in the United States, with 371,534 late arrivals recorded over a recent 12-month period. Thunderstorms are the primary disruptors, followed by fog and low cloud ceilings. The impact of summer thunderstorms aligns with peak passenger travel times, while winter snowstorms result in de-icing queues and runway closures.

Airlines for America reported that weather-induced delays cost the US economy $33 billion in 2019. The FAA's NextGen Weather program aims to reduce national weather delays by one-third once fully operational.

Newark Liberty International Airport (EWR) has a delay rate of 62.85%, attributed to snow, low clouds/fog, wind, and thunderstorms causing 190,539 delays in 2024. Senate Leader Chuck Schumer has called for "a full Inspector General investigation into what happened at Newark" following significant disruptions affecting hundreds of flights. United Airlines dominates traffic at EWR.

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San Francisco International Airport (SFO) experiences a delay rate of 55.37% due to persistent coastal fog and wind, resulting in 228,255 delays last year. The airport faces challenges with morning backlogs and staff shortages in its weather forecasting office.

New York LaGuardia Airport (LGA) has a delay rate of 54.71%, with snow, low clouds/fog, wind, and thunderstorms causing 152,563 delays in 2024. Despite frequent inconveniences, LGA received an award as the fourth-best airport in North America for its size category.

Chicago O'Hare International Airport (ORD) reports a delay rate of 45.91%, primarily due to snow and ice during winter and thunderstorms during summer. ORD had the highest number of delayed flights among major airports last year.

Boston Logan International Airport (BOS) records a delay rate of 44.92%, with snow, fog, and wind contributing to 125,851 delays in 2024. JetBlue and Delta Air Lines are the dominant carriers at BOS.

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