Business Wire

CIRIUM

6.1.2022 09:21:06 CET | Business Wire | Press release

Share
Cirium Names December as Busiest Month for Air Travel Globally in 2021; Over 59,000 Flights Are Canceled Near Year-End, the Most in a Decade

Aviation analytics firm Cirium, reveals that December was the busiest month in 2021 for flights globally, totaling 2.43 million, however the total number of flights canceled globally between December 24, 2021, and January 3, 2022, was 59,240, some 2.4%.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20220105006010/en/

The number of cancelations over this period is the most cancelations in December for the past decade, six times more than the cancelations in 2019 and two and half times more than 2020. A total of 20,500 flights were canceled in the first three days of the new year.

The big four US airlines, including American Airlines, Delta Air Lines, Southwest Airlines and United Airlines, canceled nearly 7,040 flights over this period.

The cancelations being driven by the surging cases of the Omicron variant of COVID-19 and other operational challenges (including winter weather). Airlines rapidly canceled flights due to staff shortages across crew and ground operations.

Pre-Omicron, global flights flown increased 1.5% week-over-week (December 11-17, 2021). However, global flights are now down 5% compared to the week prior, following the impact of Omicron.

There are large variances between the regions, with the US, Europe and North Atlantic down 9-10%, China up 6%, while Asia-Pacific and Middle East are flat.

“Flight disruptions affect airlines and airports differently – it depends on the availability and flexibility of equipment and resources in place to react quickly. Those that plan more conservatively will minimize their operational disruptions. Cirium monitors the level of disruption by measuring completion factor of flights and their on-time performance,” said Jeremy Bowen CEO at Cirium.

“Cirium’s recent On-Time Performance Review shows how some airlines have focused on their operations to reduce the impact on passengers. For example, Delta Air Lines completed 99.8% of their flights from June to December 2021 and All Nippon Airways, the winner of the Global airline category in Cirium’s Review had a completion factor of 99.2%.”

Consideration is given to the carriers with high volumes of flights. For example, American Airlines flew the most flights in 2021 – around 1,850,050 – and still, its flights arrived 80.47% on time. The carrier did have trouble reinstating flight volumes after more than a year of deeply depressed demand yet completed 97.5% of its flights.

Hartsfield-Jackson Atlanta International Airport (ATL), the major hub for Delta Air Lines, was the busiest airport based on departing flights with 336,890 this year. Despite handling the most flights, it ranked 15th in on-time performance of the Top 20 Global airports.

Amsterdam Airport (AMS) was the busiest airport for international flights in 2021, with a total of 123,070 departing flights, however, it didn’t make the Top 20 airport rankings for on-time performance. Airports have experienced many variables this year in deploying comprehensive pandemic protocols, optimizing the reconciliation and collection of fees and services, and optimizing staffing.

Cirium’s On-Time Performance Review is the industry standard for airlines and airports operational performance. Cirium resumed reporting in June 2021, as flight volumes returned, with regular monthly updates that help gauge the industry’s performance in getting passengers from point A to point B, on time. Cirium’s on-time performance analysis is based on flight data from over 600 sources of real-time flight information.

Click here to download the complimentary On-Time Performance Review 2021.

About Cirium

Cirium brings together powerful data and analytics to keep the world moving. Delivering insights, built from decades of experience in the sector, enabling travel companies, aircraft manufacturers, airports, airlines and financial institutions, among others, to make logical and informed decisions which shape the future of travel, growing revenues and enhancing customer experiences. Cirium is part of RELX, a global provider of information-based analytics and decision tools for professional and business customers. The shares of RELX PLC are traded on the London, Amsterdam and New York Stock Exchanges using the following ticker symbols: London: REL; Amsterdam: REN; New York: RELX.

For further information please follow Cirium updates on LinkedIn or Twitter or visit www.cirium.com .

Link:

ClickThru

About Business Wire

Business Wire
Business Wire
101 California Street, 20th Floor
CA 94111 San Francisco

http://businesswire.com

Subscribe to releases from Business Wire

Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.

Latest releases from Business Wire

Curatis: Double-Digit Revenue Growth in 2025 and Major Milestones for Corticorelin Achieved24.3.2026 07:00:00 CET | Press release

Curatis Holding AG (SIX:CURN, “Curatis”) reports business revenues of CHF 10.8m (+57%) for 2025. Curatis AG increased sales in its distribution business organically by 13%, from CHF 9.5m to CHF 10.8m. The net result improved from a loss of CHF 4.3m in 2024 to a loss of CHF 1.4m in 2025. Further key statements In September 2025, our development plan for corticorelin was validated at a meeting with the FDA, enabling Curatis to proceed toward a regulatory submission supporting a pivotal study in patients suffering from peritumoral brain edema (PTBE). In November 2025, Curatis raised CHF 1.2m to progress corticorelin. The cash position as of year end 2025 was comfortable, standing at CHF 1.9m. Recently, Curatis announced a license agreement for corticorelin for Japan with significant milestone payments. Business development and finances In 2025, product sales amounted to CHF 10.3m, while service revenue amounted to CHF 0.5m. On a full year basis, Curatis AG increased revenues in its distri

AAD 2026: Galderma Showcases Latest Evidence Supporting Its Full-Spectrum, Science-Driven Solutions for Diverse Skin Needs24.3.2026 07:00:00 CET | Press release

From its Therapeutic Dermatology portfolio, Galderma will present data on the efficacy and safety of Nemluvio® (nemolizumab) in different patient populations with moderate-to-severe atopic dermatitis, including late-breaking data in pediatric patients, and share four posters on AKLIEF® (trifarotene)1-8 Additional presentations related to Dermatological Skincare will explore how artificial intelligence can identify high-risk factors for sensitive skin and Cetaphil® in different skin types9 Data from Galderma’s Injectable Aesthetics portfolio will also show how its hyaluronic acid injectables, Restylane®, and neuromodulator, RelabotulinumtoxinA*, may address aesthetic needs across the face and décolletage10-14 A total of 22 presentations will reinforce the value of Galderma’s broad and comprehensive portfolio in meeting varied patient needs across Therapeutic Dermatology, Injectable Aesthetics and Dermatological Skincare Galderma (SIX: GALD), the pure-play dermatology category leader, wi

Avanzanite Expands French Operations and Appoints Constance Sabbagh as General Manager24.3.2026 07:00:00 CET | Press release

Avanzanite Bioscience B.V., a rapidly growing commercial-stage European specialty pharmaceutical company focused on rare diseases, today announced its expansion into France, Europe’s second largest economy, and the appointment of Constance Sabbagh as General Manager, France. Following a €32 million Series A investment by MVM Partners announced in November 2025, Avanzanite is scaling its European infrastructure into a single, integrated platform across 32 countries – designed to bring rare disease medicines to patients in every European market. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260323639110/en/ Constance Sabbagh, General Manager, France “France is essential to Avanzanite’s European vision,” said Adam Plich, Co-founder and CEO of Avanzanite. “With its leadership in rare disease policy through its National Rare Disease Plans, care networks and scientific innovation, France is one of the most significant healthcare

HJS Foundation Releases JEP Protocol & HJS Framework: The "Black Box" for AI, Enabling Verifiable Human Oversight24.3.2026 04:36:00 CET | Press release

HJS Foundation (Human Judgment Systems Foundation) today released two complementary solutions: the Judgment Event Protocol (JEP) and the Human Judgment Structure (HJS) framework. As a minimalist open standard, JEP generates tamper-proof records of AI decision accountability, just like an aircraft black box; HJS embeds human judgment logic into AI operation processes — together, they transform "human oversight" from a regulatory requirement into a verifiable technical fact, providing an optional technical solution for AI accountability. How to prove that AI decisions (such as loan approvals, medical diagnoses, border screenings, etc.) have undergone human review? JEP generates immutable audit trails of human intervention through four cryptographic primitives — Judge, Verify, Delegate, Terminate; HJS builds a controllable and accountable system to prevent risks such as AI drift and ensure that human judgment guides AI operations. Current systems rely on alterable post-hoc documentation,

Power Integrations Extends Flyback Topology to Enable 440 W, Offering Simpler Alternatives to Resonant Power Designs23.3.2026 22:45:00 CET | Press release

New TOPSwitchGaN ICs more than double power output, reducing system cost, complexity, and design time APEC 2026 – Power Integrations (NASDAQ: POWI), the leader in high-voltage integrated circuits for energy-efficient power conversion, today introduced a breakthrough in flyback topology extending the power range of flyback converters to 440 W—well beyond the limits that traditionally required more complex resonant and LLC topologies. The new TOPSwitchGaN™ flyback IC family unites the company’s groundbreaking PowiGaN™ technology with its iconic TOPSwitch™ IC architecture, reducing complexity, eliminating heat sinks in many cases, shortening design time, improving manufacturability, and lowering total system cost. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260323686299/en/ The new TOPSwitchGaN™ flyback IC family extends the power range of flyback converters to 440 W—well beyond the limits that traditionally required more co

In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.

Visit our pressroom
World GlobeA line styled icon from Orion Icon Library.HiddenA line styled icon from Orion Icon Library.Eye