- Flight Disruptions
- FAA ground stop at Chicago O'Hare disrupts 1,866 flights, hitting United hardest
FAA ground stop at Chicago O'Hare disrupts 1,866 flights, hitting United hardest
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Checked by Josh Arnfield
Last updated on 3 June 2026
1,866
Affected flights
1
Affected airports
2
Affected airlines
Disruption overview
Severe thunderstorms triggered an FAA ground stop at Chicago O'Hare International Airport (ORD) on 19 May 2026, causing a day-long ripple effect of delays, cancellations, and long security lines. United Airlines was hit hardest at its biggest hub, delaying 971 flights and canceling 56, while the airport recorded 1,866 affected movements overall. Southwest Airlines also saw continued disruption from the same storm system. Because the problem was weather outside the airline's control, compensation under EC 261 is unlikely for covered flights, but passengers should still receive care, rebooking, or a refund if their journey was disrupted.
Disruption details
Severe thunderstorms and gusty winds led the FAA to issue a ground stop at Chicago O'Hare International Airport (ORD) on 19 May 2026, disrupting flights across the airport and hitting United Airlines hardest. For passengers, that quickly turned into long delays, cancellations, and crowded terminals.
The stop was imposed shortly after 7:00 am local time. Departures were still being held at 7:21 am, and the order was due to expire at 8:45 am. Flights began moving again after that, but the recovery was much slower than the stop itself. Aircraft and crews fell out of position, so delays and cancellations kept building through the evening.
Because United Airlines runs its largest hub at O'Hare, it absorbed most of the disruption. The carrier delayed 971 flights, around 30% of its worldwide schedule for the day, and canceled another 56. That gave United the second-worst on-time performance of any airline worldwide that day.
At Chicago O'Hare, the disruption added up to:
157 departure cancellations.
143 arrival cancellations.
819 delayed departures.
747 delayed arrivals.
1,866 affected flight movements in total.
The disruption wasn't just visible on departure boards. TSA security checkpoints became heavily congested, with reports of waits approaching an hour even in PreCheck lanes. For travelers already facing delays, that added another layer of stress before they even reached the gate.
Weather-related problems weren't limited to United. Southwest Airlines had already logged more than 1,000 delays over the preceding weekend because of the same storm system, and it continued to see significant disruption on 19 May 2026. By early 20 May 2026, conditions at O'Hare had mostly stabilized, with just 2 departure cancellations at the airport and 11 canceled United flights system-wide.
United did not issue a flexible rebooking waiver during the disruption. The FAA has also told airlines to trim as many as 300 daily operations at O'Hare from 17 May through 24 October to help ease summer congestion at a hub that is especially vulnerable when bad weather moves through.
Because this disruption was caused by severe weather outside the airline's control, compensation under EC 261 is unlikely for flights covered by the rule. That said, you should still be offered support while you're waiting, including rebooking or a refund if your flight was canceled, plus meals, refreshments, accommodation, and transport if the delay stretches overnight. Although compensation is unlikely here, that doesn't mean you're without support. If you'd like to check what may apply to your journey, AirHelp's free flight checker is a simple place to start.
Know your rights
These are your air passenger rights
When your flight's disrupted, you may be entitled to various forms of care and compensation under EC 261 and other applicable laws.
Rerouting or refund
If your flight is canceled, your airline must provide an alternative. You may also get a full refund if you no longer wish to travel.
Care and assistance
Your airline must provide food and refreshments if your journey is delayed more than a few hours.
Accommodation
If you are away from home and your journey is delayed overnight, the airline must offer you accommodation and transportation to it.
Communication
Under EC 261 you are entitled to 2 phone calls or emails if your journey is delayed over 1 hour. No compensation when a disruption is caused by extraordinary circumstances, as this appears to be.
This advice is provided to help you if your flight is delayed or canceled. However, the exact care and compensation you are entitled to will depend on your specific circumstances and flight. Always follow the directions of your airline, particularly with regard to check-in and boarding times.
Quick facts
Summary
Disruption
Delays and Cancellations
Cause
Weather issue
Status
Past disruption
Compensation
Not eligible for compensation
Flights affected
1866
Airlines affected
United Airlines, Southwest Airlines
Airports affected
O'Hare International Airport
Cities affected
Chicago
Countries affected
United States
Start date
2026-05-19
End date
2026-05-20
Checked by
Josh Arnfield
Date updated
3 June 2026
What to do if your flight is delayed, canceled, or overbooked
If you're traveling to, from, or within the European Union, here's what you should do when you experience a disruption.
Gather evidence that your flight was delayed, cancelled, or overbooked.
Get the airline to provide written confirmation of the disruption and the reason behind it.
Request an alternative flight to your destination — or a refund if you no longer wish to travel.
Make a note of the arrival time at your final destination.
Ask the airline to provide vouchers for meals and refreshments.
Avoid signing documents or accepting offers that may waive your passenger rights.
If an overnight stay is required, ask the airline to provide accommodation.
Save receipts for any additional expenses caused by the disruption.
