Alaska Airlines halted all departures at airports nationwide on the day due to a technical issue.
The airline said in a statement that it was "facing an IT outage affecting flight schedules" and implemented "a temporary ground stop."
The airline did not disclose the duration the outage would continue or the number of flights were affected. It stated it was "working to resume our services" following the incident.
The ground stop also impacted Horizon Air, which is a subsidiary of the parent company, according to an advisory by the Federal Aviation Administration.
The airline, a member of The Alaska Air Group based in the Pacific Northwest, primarily operates on the West Coast of the United States. It connects 140 destinations worldwide, including 37 states and dozens of nations, according to its online platform.
Previously, the carrier joined forces with Hawaiian Airlines, which was not impacted by the day's flight suspension.
It is the latest IT outage affecting the carrier this year. In July, an issue disrupted operations for about several hours.
The company did not provide a comment on the day to media inquiries.
Air transportation in the US has been disrupted in the past few weeks due to federal budget issues that began recently. Lack of air traffic controllers reporting for duty has caused delays at multiple locations.
