Seattle-Tacoma (SEA) January 2026 Flight Statistics Report (Flight Volume, On-Time Performance, Cancellations)

Flight Volume and Growth Trends

In January 2026, Seattle-Tacoma International Airport (SEA) recorded a total of 15,392 departing flights. This represents a slight year-over-year decrease of -0.12%, indicating stable operational activity despite minor fluctuations. The airport continues to serve as a critical hub for domestic and international travel, maintaining consistent flight volumes compared to previous months. The slight decline in flight numbers may be attributed to seasonal factors and adjustments in airline schedules.

On-Time Performance Analysis

SEA achieved an on-time departure rate of 72.61% in January 2026, reflecting a decrease of -4.65% compared to the same period last year. The month-over-month performance also saw a drop of -3.54 percentage points, highlighting challenges in maintaining punctuality during winter operations. Factors such as adverse weather conditions and increased passenger traffic may have contributed to delays. Despite these challenges, SEA remains committed to improving on-time performance through enhanced coordination and operational efficiency.

Cancellations and Operational Stability

Flight cancellations at SEA totaled 317 in January 2026, marking a significant year-over-year increase of +170.94%. This surge in cancellations underscores the impact of external factors such as weather disruptions and operational constraints. While the cancellation rate remains a concern, SEA has implemented measures to mitigate disruptions and ensure passenger safety. The airport continues to prioritize operational stability and reliability for travelers.

Overall Assessment and Outlook

January 2026 presented a mixed operational performance for SEA, with stable flight volumes but challenges in on-time performance and cancellations. The airport's ability to adapt to seasonal fluctuations and external pressures remains a testament to its resilience. Looking ahead, SEA is focused on enhancing operational efficiency, leveraging technology, and collaborating with airlines to improve service quality. The outlook for the coming months remains optimistic as the airport works to address key performance areas.

Travel Recommendations and Passenger Tips

Passengers traveling through SEA in the winter months are advised to plan ahead and stay informed about potential delays or cancellations. Utilizing tools like the NextFly App can greatly enhance the travel experience. The app provides real-time updates on flight schedules, boarding gate information, baggage carousel details, and on-time performance rates. Features such as live flight radar, route maps, and delay alerts ensure passengers are well-prepared for their journey. Additionally, travelers should monitor weather conditions and allow extra time for check-in and security procedures during peak travel periods.