Seattle-Tacoma International Airport (SEA) November 2025 Flight Statistics Report (Flight Volume, On-Time Performance, Cancellations)

Flight Volume and Growth Trends

In November 2025, Seattle-Tacoma International Airport (SEA) recorded a total of 17,109 departing flights. This represents a year-over-year increase of +8.78%, indicating a steady recovery in air travel demand. The growth trend reflects the airport's expanding connectivity and the increasing preference for SEA as a major hub in the Pacific Northwest. The rise in flight volume aligns with seasonal travel patterns, particularly as the holiday season approaches. SEA continues to play a pivotal role in facilitating both domestic and international travel, with airlines adding new routes and increasing flight frequencies to meet passenger demand.

On-Time Performance Analysis

The on-time performance rate for departing flights at SEA in November 2025 was 71.93%. This marks a decline of -11.32% compared to the same month in the previous year, with a percentage point difference of -9.18 percentage points. The decrease in punctuality can be attributed to adverse weather conditions and increased air traffic congestion during peak travel periods. Despite these challenges, SEA has implemented measures to improve operational efficiency, including enhanced coordination with airlines and air traffic control. Efforts are ongoing to minimize delays and ensure a smoother travel experience for passengers.

Cancellations and Operational Stability

In November 2025, SEA reported 285 flight cancellations, reflecting a year-over-year increase of +2.96%. The rise in cancellations was primarily due to severe weather disruptions and operational constraints during high-demand periods. While the cancellation rate remains relatively low compared to other major airports, SEA is actively working to enhance its resilience against such disruptions. Investments in infrastructure and technology, as well as improved communication with airlines, are part of the airport's strategy to maintain operational stability and minimize the impact on passengers.

Overall Assessment and Outlook

Seattle-Tacoma International Airport (SEA) demonstrated robust growth in flight volume in November 2025, despite challenges in on-time performance and a slight increase in cancellations. The airport's strategic initiatives to expand connectivity and improve operational efficiency are expected to yield positive results in the coming months. As SEA continues to adapt to evolving travel demands, it remains a critical hub for both leisure and business travelers. Looking ahead, the airport is poised to further enhance its services and infrastructure to support sustainable growth and deliver a superior passenger experience.

Travel Recommendations and Passenger Tips

Passengers traveling through SEA in the coming months are advised to plan ahead, especially during peak travel periods. Utilizing tools like the NextFly App can significantly enhance the travel experience. The app provides real-time updates on scheduled and actual flight times, boarding gate information, and baggage carousel details. Additionally, features such as live flight radar, airport departure and arrival boards, and delay alerts help passengers stay informed and prepared. Travelers are encouraged to arrive at the airport early, check weather conditions, and stay updated on any potential changes to their flight schedules. By leveraging these resources, passengers can ensure a smoother and more enjoyable journey through SEA.