Lead: On Nov. 29, 2025, a fast-moving snowstorm across the upper Midwest forced the cancellation of more than 1,400 flights nationwide, FlightAware reported. Chicago O’Hare International Airport was the hardest hit, with over 930 cancellations and more than 750 delays as of Saturday afternoon. The FAA said flights departing to O’Hare faced average delays of around five hours owing to snow and ice, while Chicago Midway recorded 187 cancellations and 85 delays. Ground stops were issued at both Chicago airports as the storm moved through.
Key Takeaways
- More than 1,400 flights were canceled nationwide on Nov. 29, 2025, with the bulk of disruption centered on the upper Midwest, according to FlightAware.
- Chicago O’Hare accounted for over 930 cancellations and 750+ delays; departing flights to O’Hare averaged roughly five hours of delay per the FAA.
- Chicago Midway reported 187 cancellations and 85 delays; both O’Hare and Midway experienced ground stops on Saturday afternoon.
- Forecasters expected the heaviest snow in Chicago between 12 p.m. and 8 p.m. Saturday, with 6–10 inches possible and lighter snow into Sunday morning.
- A cross-country system that brought snow from Montana to Missouri on Friday continued into the Midwest Saturday, affecting holiday return travel for millions.
- Winter weather alerts spanned from the Dakotas south to Indiana and Michigan, widening the geographic scope of travel impacts.
Background
The late-November storm developed inland and pushed eastward after producing measurable snow from Montana through Missouri on Friday. By Saturday morning the system had intensified across the upper Midwest, where surface temperatures and moisture combined to generate heavy snow, ice and high-volume flight disruptions. The timing coincided with the post-Thanksgiving travel surge, increasing the number of travelers exposed to cancellations and long delays. Major hubs such as O’Hare handle thousands of passengers and connecting flights daily, meaning disruptions there cascade to smaller airports nationwide.
Airlines and the Federal Aviation Administration (FAA) typically plan for winter operations—de-icing, scheduling buffers, and contingency staffing—but rapidly changing conditions can overwhelm those measures. Ground stops and airport holds are tools the FAA uses to manage traffic into congested or hazardous airports; when applied at large hubs, they quickly ripple through airline networks. Flight-tracking services such as FlightAware compile cancellation and delay tallies in near real time, giving a snapshot of the operational impact as it unfolds.
Main Event
The storm’s most acute impacts materialized on Saturday afternoon in Chicago, where heavy snow and ice reduced runway capacity and slowed de-icing operations. O’Hare registered over 930 cancellations and more than 750 delays by Saturday afternoon; the FAA reported the average delay for flights into O’Hare was about five hours. Airport authorities implemented ground stops to limit arrivals and clear aircraft and crews already on the ground.
Midway Airport recorded 187 cancellations and 85 delays and also experienced a ground stop. Airlines on the ground reported longer-than-normal de-icing queues and crew-rest complications; these operational limits contributed to extended delays and a swelling backlog of canceled flights. Surface conditions were similarly affected—regional roads and highways reported accumulations and reduced visibility, slowing ground transportation to and from airports.
Forecast guidance indicated the heaviest snow window for Chicago was between 12 p.m. and 8 p.m. on Saturday, with totals of 6 to 10 inches possible. The system was expected to taper overnight into Sunday, with lingering light snow through midday Sunday. Weather alerts stretched from North and South Dakota down toward Indiana and Michigan, creating a broad geographic band of travel risk across the Midwest.
Analysis & Implications
Operationally, the combination of heavy snowfall, icing risk, and peak holiday travel produces a high-risk scenario for airlines and airports. Large hubs like O’Hare are sensitive to localized capacity drops; a few hours of reduced throughput can eliminate recovery windows and force airlines to cancel waves of flights rather than run heavily delayed service. That leads to downstream effects: missed connections, crew duty-time violations, and aircraft repositioning challenges that can extend disruptions into the following days.
Economically, the direct cost to airlines grows with each hour of delay and each canceled flight through passenger reaccommodation, crew overtime, and undone revenue opportunity. Freight and cargo operations can also be affected at major hubs, adding indirect supply-chain pressures. For passengers, prolonged waits and unexpected overnight stays create personal and business losses and may shift travel behavior—some travelers may postpone return trips or opt for alternate routes, increasing demand on less-affected corridors.
From a policy and planning perspective, the event highlights the importance of winter-readiness investments: additional de-icing equipment, flexible crew pools, and improved real-time passenger communications. The FAA and airport authorities may review procedures for ground stops, contingency phasing, and inter-airline coordination to minimize cascade cancellations in future storms. Climate variability and late-season storms could increase the frequency of such disruptions, suggesting longer-term resilience planning is prudent.
Comparison & Data
| Location | Cancellations (approx.) | Delays (approx.) |
|---|---|---|
| Chicago O’Hare | 930+ | 750+ |
| Chicago Midway | 187 | 85 |
| Nationwide total | 1,400+ | — |
The table shows the concentration of disruptions at Chicago hubs relative to a nationwide cancellation count exceeding 1,400. O’Hare’s share—more than half of the total cancellations—illustrates how a single major hub can dominate national statistics when operations are curtailed. These numbers are dynamic and subject to revision as airlines update manifests and the FAA adjusts flow controls.
Reactions & Quotes
“We are monitoring conditions closely and advising travelers to check with carriers before departing for the airport.”
Federal Aviation Administration (FAA, official advisory)
“Significant delays and cancellations are concentrated at O’Hare due to heavy snow and extended de-icing times.”
FlightAware (flight-tracking service)
“Passengers should expect longer processing times and consider alternative plans if possible.”
Chicago Department of Aviation (local authority)
Unconfirmed
- Whether any cancellations reflected crew availability or maintenance issues separate from weather has not been fully disclosed by airlines; data available emphasizes weather as the primary cause.
- Reports of specific prolonged passenger strandings at particular terminals were not corroborated by airport authorities at the time of reporting.
- Claims that cargo operations were broadly halted nationwide are not confirmed; localized cargo delays likely vary by hub and operator.
Bottom Line
The Nov. 29, 2025 snowstorm produced concentrated disruption at Chicago’s airports and contributed to a nationwide tally of more than 1,400 canceled flights. The intersection of heavy snow, de-icing demand and post-holiday travel volumes turned localized conditions into a broadly felt operational problem for airlines and passengers.
Travelers should verify flight status directly with airlines, expect continued adjustments through Sunday as weather eases, and plan for potential extended delays or alternate routing. For airlines and airport managers, the event underscores the need for adaptive contingency procedures and rapid passenger communications to limit ripple effects in future winter storms.
Sources
- ABC News (national news report)
- FlightAware (flight-tracking service, operational cancellation and delay tallies)
- Federal Aviation Administration (FAA) (official advisories and traffic control notices)
- National Weather Service (NOAA) (weather forecasts and winter-storm warnings)
- Chicago Department of Aviation (official airport notices)
- KETV (local media coverage and imagery from the field)