Last Updated on July 25, 2026 by Daniel Globe
Airline outages can change by the minute. A carrier that is operating normally at one airport may still have delays at another, and an airline that initially avoids a technology failure may be affected later by airport congestion, crew displacement, or connecting-flight problems. The safest approach is to verify your exact flight instead of relying on a permanent list of “unaffected airlines.”
Quick Answer
No airline is permanently immune to outages, and there is no reliable static list of carriers operating normally during every disruption. Check your exact flight in the airline’s app, confirm the operating carrier, review your departure airport, and check official airspace alerts. Historical outage lists cannot confirm today’s flight status.
Key Takeaways
- “Unaffected” is a temporary, incident-specific status, not a permanent rating for an airline.
- During the July 19, 2024 CrowdStrike incident, Southwest was reported as not directly affected, while American and Delta confirmed operational disruption.
- An airline’s general status does not guarantee that your airport, route, inbound aircraft, or codeshare flight is operating normally.
- Use the airline app, airport departure board, travel-waiver page, and official FAA status tools before leaving for the airport.
- If a U.S. flight is canceled or significantly changed and you decide not to travel, you may be entitled to an automatic refund rather than a voucher.
At a Glance
| Time Required | About 5–10 minutes |
| Difficulty | Easy |
| Tools Needed | Phone or computer, internet connection, flight number, and booking reference |
| Cost | Free |
Are Any Airlines Not Affected by an Outage?
There is no airline that remains unaffected by every technology failure, airport closure, weather event, power outage, air traffic restriction, cyber incident, or geopolitical disruption. The effect depends on which systems fail and which airlines, airports, contractors, and government agencies use those systems.
An airline may be described as unaffected during one incident because it does not use the failed software. That same airline can still experience another outage involving its reservation platform, website, crew-scheduling system, airport equipment, telecommunications provider, or internal network.
Note: “The airline is operating” and “my flight is operating” are not the same statement. Always verify your flight number, date, airport, and operating carrier.
What Happened During the July 2024 Global IT Outage?
On July 19, 2024, CrowdStrike released a content configuration update for certain Windows systems running its Falcon sensor. An error in that update caused affected Windows computers to crash. CrowdStrike withdrew the update and stated that the incident was not a cyberattack. Mac and Linux hosts were not affected by that specific update.
The failure reached airlines, airports, banks, hospitals, and other organizations that relied on the affected systems. In aviation, check-in terminals, flight-information displays, call centers, aircraft weight-and-balance processes, crew scheduling, maintenance coordination, and other operational tools experienced disruption.
IATA’s incident guidance reported that thousands of flights were canceled or delayed worldwide and that recovery took several days for some airlines.
Airline Impact Varied
| Airline | July 2024 Incident Status | What Travelers Should Learn |
| Southwest Airlines | The airline was reported as not directly affected by the CrowdStrike failure on July 19. | This was specific to one incident. It does not make Southwest immune to other technology or operational failures. |
| American Airlines | American confirmed that the vendor issue affected its operation. It reestablished operations early that morning but still expected delays and cancellations. | A fast recovery does not mean an airline was unaffected. |
| Delta Air Lines | Delta experienced extensive disruption and said normal operational reliability returned several days later. | Recovery can continue after the original technical fault is fixed because aircraft and crews are no longer in their planned positions. |
A low cancellation rate or quick recovery does not prove that an airline was unaffected. It only describes performance during a particular period.
Warning: Do not use a list from the July 2024 outage to judge a current disruption. Check live information for your exact flight before traveling to the airport.

How to Check Whether Your Airline Is Affected Right Now
- Open the airline’s official app or website. Search by flight number rather than route alone. Confirm the date because flight numbers may repeat daily.
- Check the operating carrier. A ticket sold by one airline may be operated by a codeshare partner. The operating airline controls the aircraft and normally provides the most relevant operational update.
- Review the airport departure board. Check both your departure airport and connecting airport. An airline may be operating nationally while one hub is under a ground delay or closure.
- Check the inbound flight when possible. A flight shown as “on time” may later be delayed if its aircraft has not left the previous airport.
- Look for an official travel waiver. Airlines often publish waivers that allow eligible passengers to change travel dates or routes without the usual fee or fare difference.
- Check national airspace restrictions. In the United States, use the FAA National Airspace System Status page for airport closures, ground stops, ground-delay programs, and other major events.
- Save evidence. Take screenshots of cancellation notices, rebooking offers, chat messages, and expense instructions. Keep receipts for meals, lodging, ground transport, and replacement travel.
Pro Tip: Enable app notifications and confirm that your phone number and email address are correct in the booking. App rebooking is often faster than waiting in an airport customer-service line.
Common Causes of Airline Outages
Airline Technology Failures
An airline’s reservation, check-in, boarding, baggage, dispatch, website, payment, crew-scheduling, or communications system can fail. The problem may affect the whole network or only one function.
Third-Party Vendor Failures
Airlines depend on cloud providers, cybersecurity software, telecommunications networks, payment processors, airport contractors, and global distribution systems. A vendor failure can affect several airlines at once, but the impact varies according to each airline’s systems and recovery plan.
Airport Systems and Power
A power failure, damaged cable, terminal evacuation, baggage-system breakdown, security issue, or airport computer problem can disrupt every airline using the affected terminal even when airline systems remain online.
Air Traffic Control Restrictions
Air traffic authorities may impose a ground stop or ground-delay program because of weather, equipment failure, staffing constraints, runway conditions, or heavy traffic. In this situation, multiple airlines may be delayed even though their own technology is working.
Severe Weather and Natural Disasters
Thunderstorms, snow, hurricanes, volcanic ash, flooding, wildfires, earthquakes, and high winds can close airports or reduce runway capacity. The resulting crew and aircraft displacement may continue after conditions improve.
Cybersecurity and Geopolitical Events
Cyberattacks, regional conflict, airspace closures, security restrictions, and civil unrest can affect flight planning, airport access, payment services, or entire routes. Not every technical outage is a cyberattack, so travelers should rely on official statements rather than speculation.
Impact of Outages on Airlines
Financial Implications
Outages can create substantial costs through refunds, passenger care, overtime, replacement transportation, repositioning flights, baggage delivery, and lost bookings. Airlines may also need additional staff to answer calls, rebook passengers, restore systems, and move crews and aircraft back into position.
Reputational Damage and Loss of Customer Loyalty
Passengers often judge an airline not only by whether a disruption happened, but by how clearly and fairly the airline responded. Confusing messages, inaccessible support, or inconsistent reimbursement decisions can damage trust long after normal flying resumes.
The Competitive Disadvantage
An airline with slower recovery may lose passengers to carriers that still have seats and functioning systems. However, switching airlines is not always simple. Available fares may rise, checked baggage may remain with the original carrier, and a new ticket may not be reimbursed unless the original airline has agreed to cover it.
Strategies for Outage Bypass and Recovery
Airlines cannot prevent every disruption, but they can reduce the scope and duration of failures through business-continuity planning. IATA emergency-response guidance emphasizes preparation, coordination, defined responsibilities, training, and recovery procedures.
Redundant and Isolated Systems
Critical services may use backup infrastructure, separate networks, replicated data, and geographically distributed facilities. Effective redundancy requires isolation: a corrupted update or compromised credential should not automatically reach every primary and backup system.
Tested Failover and Recovery
A backup is useful only if the airline can restore it quickly. Airlines need recovery exercises, documented system dependencies, current contact lists, protected administrator access, and clear authority for activating alternate systems.
Manual Operating Procedures
Paper manifests, manual bag tags, offline passenger lists, alternate communication channels, and simplified dispatch procedures can support limited operations. Manual processes have lower capacity and must still meet security and safety requirements, so they cannot fully replace modern airline systems.
Vendor and Update Management
Airlines can reduce risk by reviewing vendor dependencies, testing changes where practical, phasing deployments, maintaining rollback procedures, monitoring third-party incidents, and ensuring that contracts include recovery and communication obligations.
Crew and Aircraft Recovery
Restoring a computer system does not instantly restore the flight schedule. Crews may exceed legal duty limits, aircraft may be at the wrong airport, and maintenance tasks may need to be rescheduled. Recovery teams must rebuild a safe, workable schedule rather than simply restarting every canceled flight.
Backup systems and dependable infrastructure therefore matter, but resilience comes from the combination of technology, people, procedures, training, and realistic recovery exercises. No single cloud platform, analytics tool, or software product can make an airline immune to disruption.
Why Less-Affected Airlines Matter
When one carrier has a major failure, airlines with more available capacity may carry some displaced travelers. This can preserve connectivity, reduce pressure at airports, support local and global economic activity, and help essential travel continue.
| Metric | Why It Matters |
| Customer Confidence | Clear updates, dependable rebooking, and consistent assistance help preserve trust during disruption. |
| Market Stability | Operating carriers can provide alternatives when another airline temporarily loses capacity. |
| Economic Impact | Reliable transport supports tourism, trade, time-sensitive business, and movement between communities. |
| Employment Opportunities | Stable operations support airline, airport, maintenance, catering, ground-handling, and tourism jobs. |
Performance during a crisis can also reveal useful practices. Other airlines can study recovery speed, passenger communication, manual fallback capacity, crew rescheduling, and vendor management. The goal is not to label one carrier permanently unaffected, but to improve resilience across the aviation system.
Technology and Innovation in Airline Resilience
Data analytics and artificial intelligence can help airlines forecast weather impact, estimate passenger demand, identify maintenance patterns, and model how delays may spread through a network. These tools can improve decisions, but they cannot predict or prevent every software defect, cyber incident, power failure, or airport closure.
Cloud platforms can provide scalable computing, geographic replication, and faster deployment. They can also create concentration risk when many critical services depend on the same vendor, account, network connection, or software layer. Airlines therefore need tested recovery options rather than assuming that moving a system to the cloud automatically makes it resilient.
Other important controls include secure backups, segmented networks, carefully managed updates, least-privilege access, offline recovery instructions, multiple communication channels, and realistic exercises involving airline staff, airports, vendors, and government agencies.
Customer Experience During an Airline Outage

Proactive Communication
Useful updates should explain what happened, which flights are affected, what the airline is doing, and what choices passengers have. The airline app, text messages, email, gate announcements, and airport displays should provide consistent information whenever possible.
Investing in Customer Service
During a large outage, trained employees need authority to rebook passengers, issue eligible vouchers, arrange accommodation, and explain refund choices. Self-service tools can reduce queues, but accessible telephone and airport assistance remains important for complex itineraries and passengers with disabilities.
Demonstrating Customer Care
Meals, hotels, transportation, fee waivers, and reimbursement may be available depending on the cause of the disruption, local law, and the airline’s published commitments. Travelers should ask what is covered and obtain written instructions before purchasing expensive replacement transportation or accommodation.
Warning: Large outages attract fake airline-support accounts, phishing emails, and fraudulent phone numbers. Use contact information from the airline’s official app, website, boarding pass, or airport desk.
What to Do If Your Flight Is Affected
- Confirm whether the flight is delayed or canceled. Do not rely only on a general news report.
- Use self-service rebooking first. Check the airline app for same-day, next-day, alternate-airport, or connecting options.
- Compare the refund and rebooking choices. Accepting a voucher or rebooked flight may affect your ability to request a cash refund.
- Check your full itinerary. A new first flight is not helpful if the replacement connection is already canceled.
- Ask about baggage. Determine whether a checked bag will be transferred, returned, or sent to the original destination.
- Keep essential items with you. Medication, identification, chargers, valuables, and a change of clothing should remain in carry-on baggage when possible.
- Save receipts and written instructions. Keep proof of reasonable expenses and any airline promise to reimburse them.
- Contact travel insurance or the card issuer. Coverage may apply after the airline confirms the cancellation or delay, subject to the policy terms.
U.S. Refund Rights
For flights to, from, or within the United States, the U.S. Department of Transportation says a passenger is entitled to a refund when the airline cancels a flight and the passenger chooses not to travel or accept the offered alternative.
A refund may also be due when the airline significantly changes the itinerary and the passenger rejects the changed flight, rebooking, voucher, or other compensation. Under current DOT standards, significant changes include certain domestic schedule changes of three hours or more, international changes of six hours or more, an airport change, more connections, a cabin downgrade, or a less-accessible itinerary for a passenger with a disability.
When a refund is owed, it generally must be returned to the original payment method within seven business days for credit-card purchases or 20 calendar days for other forms of payment.
Meals, hotels, and ground transportation are different from ticket refunds. These benefits often depend on whether the disruption was within the airline’s control and what the airline has committed to provide. Travelers can compare major U.S. airline commitments through the DOT Cancellation and Delay Dashboard.
Note: Passenger rights differ outside the United States. Check the rules for the country where the flight operates and the airline’s conditions of carriage.
Future of Airline Outage Resilience
Airlines will continue using automation, predictive models, cloud services, mobile tools, and real-time data to manage complex flight networks. The most resilient operations will combine these technologies with isolated backups, controlled software deployment, strong vendor oversight, trained employees, and manual fallback procedures.
Travelers also expect greater flexibility. Easier self-service rebooking, clear refund choices, timely baggage information, and consistent updates can reduce the harm caused by an outage even when the underlying failure cannot be avoided.
Sustainability may influence recovery planning as well. Better aircraft positioning, more efficient rerouting, and accurate demand forecasts can reduce unnecessary flights and fuel use. These benefits should be measured carefully rather than presented as guaranteed results of new technology.
The Role of Less-Affected Airlines in the Aviation Industry
Airlines that retain more operating capacity during a disruption can provide useful alternatives for stranded travelers and reduce pressure on airports. They may also demonstrate effective practices in system design, communication, staffing, and recovery planning.
However, no airline should be described as permanently unaffected. The more useful question is whether the reader’s exact flight is operating and whether the airline has a clear recovery plan when something fails. Live verification, realistic expectations, and knowledge of refund and rebooking rights are more dependable than any static list of airline names.
Frequently Asked Questions
Which airlines are not affected by an outage right now?
There is no permanent or universal list. Outage impact changes by incident, airport, route, operating carrier, and time. Check your exact flight in the airline’s official app, confirm the operating carrier, review the airport departure board, and check official airspace notices.
Was Southwest Airlines affected by the July 2024 CrowdStrike outage?
Southwest was reported as not directly affected by the CrowdStrike failure on July 19, 2024. That status applied only to that incident and did not make the airline immune to airport delays, weather, air traffic restrictions, or future technology failures.
Were Delta and American Airlines unaffected by the July 2024 outage?
No. American Airlines confirmed that the vendor problem affected its operation, although it restored service relatively quickly. Delta experienced a longer disruption and said normal operational reliability returned several days later.
How can I find out whether my airline is affected?
Search your flight number in the official airline app or website, confirm the operating carrier, check your departure and connecting airports, look for a travel waiver, and review official aviation-authority notices. Recheck shortly before leaving because status can change.
What should I do if my airline is affected by an outage?
Confirm the status, review self-service rebooking options, compare rebooking with a refund, check your connecting flights, ask about checked baggage, and keep receipts. Obtain written approval before assuming the airline will reimburse an expensive replacement ticket or hotel.
Are any airlines immune to outages?
No. Airlines can reduce risk with redundant systems, secure backups, manual procedures, vendor controls, and recovery exercises, but every carrier depends on airports, air traffic services, power, communications, technology vendors, employees, and weather conditions.
What are common causes of airline outages?
Common causes include reservation or crew-scheduling failures, third-party software defects, telecommunications problems, power failures, airport equipment breakdowns, air traffic restrictions, severe weather, cyber incidents, and security or geopolitical events.
Can the airline rebook me on another carrier?
An airline may rebook you on another carrier, but this is not guaranteed in every situation. Availability, ticket agreements, route options, and the airline’s policy all matter. Ask the original airline to arrange or approve the replacement before buying a separate ticket.
Sources
- CrowdStrike Preliminary Post Incident Review — confirms the July 19, 2024 update timeline, affected Windows systems, and technical cause.
- IATA Global IT Outage Guidance — documents the aviation impact, operational disruption, and recovery challenges.
- American Airlines Global Technology Outage Statement — confirms that American was affected and describes its initial recovery.
- Delta Air Lines July 2024 Operation Update — confirms Delta’s disruption and return to normal operational reliability.
- FAA National Airspace System Status — provides current U.S. airport closures, ground stops, and delay programs.
- U.S. Department of Transportation Refund Guidance — explains refund eligibility for canceled or significantly changed flights.
