Flights Cancelled Over the US As Seattle, San Francisco, And Other Airports Face 164 Cancellations And 2,689 Delays

Written By: Ryan Rashid

Ryan Rashid

Ryan Rashid covers the travel and aviation industry with a focus on the disruptions, industry shifts, and operational changes that shape how people actually travel. An English graduate from Calcutta University, he pairs sharp writing instincts with a solid grip on what makes a story travel online. He keeps a close eye on what's trending and what's about to, so stories land while they still matter. Underneath the fast pace, there's always solid research and clean editing holding it together.

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September 11, 2026 00:39 GMT+5:30

Passengers across the US are facing 2,689 delays and 164 cancellations today, with disruptions affecting several major airports and carriers. Horizon (ASA), Alaska Airlines, United, and Southwest are among the airlines requiring travelers to pay close attention to their flight status. Key airports experiencing disruptions include Atlanta Hartsfield-Jackson, Houston Bush, Chicago O’Hare, Boston Logan, Miami, Seattle-Tacoma, and Portland.

Key Takeaways

• Miami is facing 290 delays, with thunderstorms contributing to major ground delays.
• Boston Logan is experiencing 226 delays, while runway construction is affecting operations.
• Chicago O’Hare is recording 205 delays, with departure delays averaging 15 minutes and increasing.
• Seattle-Tacoma is seeing 110 delays, with demand and traffic volume contributing to departure delays.
• Southwest travelers should allow additional flexibility, with 540 delays affecting its operations.
• Horizon (ASA) is facing 71 cancellations, making it an airline for passengers to watch closely.

US Airports Seeing the Most Passenger Disruptions

Miami

Miami is recording 290 delays and 8 cancellations today. The FAA is reporting ground delays associated with thunderstorms, with the average delay reaching 218 minutes. Travelers using Miami should check their flight status closely and allow additional time for changes to their departure plans. By origin, Miami is recording an 18% delay rate, while its destination figures show a 28% delay rate.

Boston Logan

Boston Logan is facing 226 delays and 3 cancellations. The FAA is reporting ground delays linked to runway construction, with average delays reaching 64 minutes. Passengers traveling through Boston should be prepared for additional waiting time and possible schedule adjustments. By destination, Boston Logan is recording a 22% delay rate.

Chicago O’Hare

Chicago O’Hare is recording 205 delays and 4 cancellations. The FAA is reporting departure delays averaging 15 minutes and increasing, with the cause categorized as other. Travelers connecting through Chicago may want to allow additional flexibility. By destination, Chicago O’Hare is recording a 6% delay rate.

Hartsfield-Jackson

Hartsfield-Jackson is experiencing 150 delays and 6 cancellations. The airport remains one of the key US locations where travelers may need to monitor changing departure information before heading to the airport. By origin, Hartsfield-Jackson is recording a 5% delay rate, while its destination figures show an 8% delay rate.

Seattle-Tacoma

Seattle-Tacoma is recording 110 delays and 32 cancellations. The FAA is reporting departure delays averaging 15 minutes and increasing, with volume and demand contributing to the disruption. Travelers should check for updated departure information before leaving for the airport. By origin, Seattle-Tacoma is recording a 2% cancellation rate and 7% delay rate, while its destination figures show a 2% cancellation rate and 8% delay rate.

San Francisco

San Francisco is facing 96 delays and 6 cancellations. Travelers using the airport should monitor their airline’s latest flight information, particularly when connecting to other major US airports. By destination, San Francisco is recording a 9% delay rate.

Houston Bush

Houston Bush is recording 81 delays and 7 cancellations. The FAA is reporting departure delays averaging 15 minutes and increasing because of thunderstorms. Travelers may therefore need to account for additional time when planning connections. By origin, Houston Bush is recording a 5% delay rate, while its destination figures show a 7% delay rate.

Portland

Portland is recording 31 delays and 25 cancellations. The relatively high number of cancellations means passengers should verify their flight status before traveling to the airport. By origin, Portland is recording a 2% cancellation rate and 3% delay rate, while its destination figures show a 5% cancellation rate and 6% delay rate.

Airlines Requiring Extra Attention From Travelers

Southwest

Southwest is facing 540 delays and 9 cancellations. The scale of the delays means passengers flying with the carrier should keep checking their departure information and remain prepared for schedule changes.

United

United recorded 239 delays and 12 cancellations. Passengers with connections through busy US airports should leave additional flexibility in their plans where possible.

Alaska Airlines

Alaska Airlines is facing 67 delays and 26 cancellations. Travelers booked on the carrier should check their flight status before departure and pay attention to any notifications concerning schedule changes.

Horizon (ASA)

Horizon (ASA) is facing 15 delays and 71 cancellations. Passengers traveling on affected services should confirm whether their flight remains scheduled before making their way to the airport.

Steps Passengers Can Take When a Flight Is Cancelled

• Check the airline’s website or mobile application for the latest flight status.
• Contact the airline to ask about available rebooking options.
• Check whether another flight can get you to your destination sooner.
• Keep important travel documents and booking information accessible.
• If rebooked, confirm the new departure time and airport before leaving.
• Allow extra time for baggage collection and transfers when plans change.
• If traveling for an important appointment or event, notify the relevant person or organization about a possible delay.

Factors Behind Flight Cancellations Across the US

Flight cancellations can occur for a range of operational reasons. Weather conditions such as thunderstorms can affect aircraft movements, airport capacity, and departure schedules. Runway construction can also reduce available operating capacity and create additional waiting time.

Other disruptions may stem from aircraft availability, crew scheduling, air traffic management, airport congestion, or changes required to keep aircraft and crews in position for later flights. These factors can also create delays that affect subsequent services throughout the day.

The Broader Picture for US Air Travel Today

The current US flight picture shows disruptions across several major passenger hubs, with both delays and cancellations affecting travelers.

Southwest is facing the heaviest delay pressure among US carriers, with 540 delays. United is also seeing substantial disruption, while Alaska Airlines and Horizon (ASA) are facing notable cancellation activity.

Among airports, Miami is experiencing the largest number of delays at 290, followed by Boston Logan with 226 and Chicago O’Hare with 205. Hartsfield-Jackson is also seeing significant passenger disruption, while Seattle-Tacoma, San Francisco, and Houston Bush are recording additional delays.

Weather is playing a role at several locations. The FAA is attributing the ground delays at Miami to thunderstorms and departure delays at Houston Bush to thunderstorms. At Boston Logan, runway construction is contributing to ground delays. At Seattle-Tacoma, demand and volume are contributing to departure delays, while Chicago O’Hare is experiencing increasing departure delays for an unspecified operational reason.

For travelers across the US, the current conditions make checking flight status before departure particularly important. Changes at one major airport can also affect connecting passengers whose journeys pass through another busy hub.

The data has been extensively curated by our editorial team using real-time aviation figures recorded on 10 September 2026 at 2:30 pm ET USA

Primary Source: FlightAware.

Verification Protocol: All statistics have been independently reviewed and cross-checked by our human editorial desk. Timestamped records, data logs and feed snapshots are securely archived internally to support historical accuracy and editorial transparency.

Note: Real-time flight-tracking figures reflect active airspace and operational data. Minor variations may occur when compared with information displayed at individual airport terminals or airline departure gates.

Travellers are advised to check directly with their respective airlines and airports for the latest flight status, schedule changes and operational updates.

Verified by Rana Pratap