Tech outage triggers ticketing delays at San Diego airport

Travelers moving through San Diego International Airport on Tuesday, September 22, faced long queues and crowded terminals after a widespread technical issue disrupted ticketing systems, slowing check in and prompting warnings of delays for departing passengers.

IT failure slows ticketing across both terminals

Publicly available coverage from multiple outlets indicates that the disruption began in the early morning hours on September 22, when a shared information technology system used for airline ticketing and check in at San Diego International Airport experienced a failure. Reports describe the issue as an outage affecting the computer networks that support ticketing operations, rather than the systems that manage flight movements.

The problem quickly affected passenger processing in both Terminal 1 and Terminal 2. Accounts from local news and national aggregators describe lines for check in and baggage drop stretching through concourses and, at times, toward terminal entrances as travelers waited to be processed. Despite the congestion inside the terminals, coverage notes that the airfield continued to function, with aircraft still arriving and departing.

Several reports reference a notification issued by the airport around 8:30 a.m. local time on September 22 through its social media channels. In that update, the airport advised travelers to arrive earlier than they might on a normal day and to verify their flight status directly with their airlines while staff worked to address the underlying problem.

Manual workarounds deployed to keep passengers moving

As ticketing and check in systems slowed or went offline, airlines at San Diego International Airport turned to backup procedures to keep passengers moving. Transportation and local news reports indicate that staff began processing travelers manually, using tablet devices and printed paper tickets in place of the usual automated kiosks and networked terminals.

According to these accounts, the shift to manual processing significantly reduced the speed of check in and baggage handling, contributing to the long waits observed in both terminals. Gate agents and customer service teams were reported to be inputting passenger details by hand and coordinating with operations staff to ensure that boarding lists were accurate despite the technology issues.

Several outlets describe the outage window as overlapping with one of the airport’s busiest morning peaks, when a large number of departures are typically scheduled. That timing, combined with the slower manual workflows, appears to have amplified the impact on travelers, particularly those flying on domestic routes from Terminal 1 as well as international and transcontinental services in Terminal 2.

Flights continue operating despite terminal delays

While passengers on the ground faced significant inconvenience, reporting from regional broadcasters and travel news sites indicates that the disruption was largely confined to ticketing, check in and related customer service functions. Available information shows that the airport remained open throughout the incident and that flights continued to arrive and depart.

Some coverage notes that airlines were able to maintain their published schedules in many cases, even as boarding and security screening adjusted to the slower ticketing process. Travelers who had already checked in online or through airline mobile apps, and who were traveling with carry on luggage only, may have been less affected than those needing to check bags or make changes at a staffed counter.

There are, however, indications that knock on delays occurred for certain departures as boarding times shifted and aircraft waited for late connecting passengers caught in the longer lines. At the time of writing, there is no indication in public reporting of widespread cancellations directly attributed to the ticketing outage, but some individual itineraries may have been disrupted as delays accumulated.

Cause under investigation as systems recovery continues

As of September 23, publicly accessible reports describe the incident as an information technology outage but do not provide detailed technical explanations of the root cause. The issue has been characterized as a failure within systems that support the shared ticketing infrastructure used by multiple airlines at San Diego International Airport.

Coverage notes that the airport has indicated the matter is under review, with teams working to determine why the systems went down and how to prevent a recurrence. No public reporting reviewed so far links the outage to a cybersecurity incident, external attack or broader regional infrastructure failure. In the absence of further official detail, it remains unclear whether the problem stemmed from hardware malfunction, software updates, network issues or another source.

By the afternoon and evening of September 22, broadcast segments and online travel reports suggested that operations at San Diego International Airport were stabilizing, with air traffic described as running more smoothly. However, some residual delays and crowding persisted as the backlog of earlier passengers cleared and airlines worked to realign schedules.

What travelers flying from San Diego should know now

For travelers with upcoming flights through San Diego, published guidance following the outage has focused on building in extra time and making use of digital tools. Airport updates referenced in news coverage urged passengers to arrive earlier than the usual suggested window, particularly during morning and early afternoon peaks when the facility experiences its heaviest traffic.

Travel reporting also highlights existing recommendations that passengers use airline mobile apps and online check in options whenever possible. Completing check in before arriving at the terminal can reduce the amount of time spent in ticketing lines if systems are still recovering or operating at reduced capacity.

In addition, public travel advice points to customer service dashboards maintained by the United States Department of Transportation as a resource for understanding what assistance airlines provide when delays fall within their control. Although the San Diego ticketing disruption has been described as an airport level technology issue rather than an airline specific problem, these tools can help travelers understand rebooking options, meal vouchers and other remedies if a delay leads to a missed connection or significant schedule change.

As investigations into the outage continue, future updates from San Diego International Airport and its airline partners are expected to clarify whether additional safeguards or system changes will be introduced, information that will be closely watched by frequent travelers who rely on the region’s primary air gateway.