338 Delayed Flights and 94 Cancellations in Atlanta, Affecting New York, Boston, Orlando, Miami and More as Frontier, Southwest, JetBlue, Endeavor and Others Disrupt Travel in the USA: What You Need to Know

Published on December 28, 2025

Passengers moving through Hartsfield–Jackson Atlanta Intl Airport today felt the disruption firsthand as 94 flights were cancelled and 338 others failed to run on time, leaving schedules in disarray across the USA. The most affected airline was Delta Air Lines (75 cancellations, 191 delays), followed by Frontier Airlines (6 cancellations, 30 delays), Endeavor Air (2 cancellations, 48 delays), Southwest Airlines (2 cancellations, 24 delays), and JetBlue (2 cancellations, 6 delays).
Several major carriers not among the most affected by cancellations still recorded delays, including United Airlines, Lufthansa, KLM, Turkish Airlines, Virgin Atlantic, and Air France.
On the airport side, ATL itself recorded 36 cancellations and 195 delays, while connected disruptions extended to LaGuardia Airport (6 cancellations, 3 delays), Boston Logan International Airport (3 cancellations, 5 delays), Orlando International Airport (2 cancellations, 10 delays), John F. Kennedy International Airport (2 cancellations, 3 delays), and Miami International Airport (2 cancellations, 3 delays).

• Updated today: Atlanta-linked operations recorded 94 cancellations and 338 delays, disrupting domestic and limited international travel.
• Delta Air Lines remained the primary disruption driver, accounting for the majority of cancellations and delays.
• ATL was the most affected airport, while delays spread to major hubs including New York, Boston, Orlando, and Miami.
• Multiple international airlines experienced knock-on delays despite no recorded cancellations.
• Travelers across key US hubs faced schedule uncertainty due to Atlanta’s central network role.

Most Affected Connected Airports

Hartsfield–Jackson Atlanta International Airport

ATL recorded 36 cancellations and 195 delays, making it the epicenter of the disruption and the primary source of cascading delays across the US network.

LaGuardia Airport

Operations linked to Atlanta saw 6 cancellations and 3 delays, affecting short-haul and business-heavy routes.

Boston Logan International Airport

Boston experienced 3 cancellations and 5 delays, reflecting spillover disruption on Northeast corridors.

Orlando International Airport

With 2 cancellations and 10 delays, Orlando’s leisure-heavy traffic was impacted by delayed inbound aircraft.

John F. Kennedy International Airport

JFK recorded 2 cancellations and 3 delays, including disruptions affecting transatlantic connections.

Airlines Most Affected by Flight Cancellations and Delays

Delta Air Lines

Delta accounted for the highest disruption volume, with 75 cancellations and 191 delays, reflecting ATL’s role as its main hub.

Frontier Airlines

Frontier recorded 6 cancellations and 30 delays, impacting low-cost domestic services.

Endeavor Air

Operating regional feeder routes, Endeavor posted 2 cancellations and 48 delays.

Southwest Airlines

Southwest experienced 2 cancellations and 24 delays, affecting high-frequency domestic routes.

JetBlue

JetBlue saw 2 cancellations and 6 delays, with a high proportion of delayed operations.

How Travellers Were Impacted at Major Airports

• Missed onward connections due to late inbound aircraft.
• Extended waiting times during gate reassignments.
• Rebooking onto later same-day or next-day services.
• Crowded terminals during peak recovery periods.
• Limited seat availability on alternate flights.

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Overview of Flight Cancellations

Flight cancellations were concentrated among Delta Air Lines, Frontier Airlines, Southwest Airlines, JetBlue, Endeavor Air, and Spirit Airlines, with Atlanta (ATL) appearing repeatedly as the most affected hub. Secondary impacts were observed at LaGuardia (LGA), Boston Logan (BOS), Orlando (MCO), and John F. Kennedy International (JFK), where delayed aircraft rotations contributed to further schedule instability. While international carriers such as Lufthansa, KLM, Turkish Airlines, Virgin Atlantic, and Air France did not record cancellations, their operations were affected by Atlanta-linked delays, underscoring the airport’s outsized influence on both domestic and international networks.

Image Source: AI

Source: Different airports and FlightAware