CIRIUM
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 .
View source version on businesswire.com: https://www.businesswire.com/news/home/20220105006010/en/
Link:
About Business Wire
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
Deciphera Announces Oral Presentation of Positive Topline Results from Phase 2a Study of Sapablursen in Polycythemia Vera at the 67th American Society of Hematology (ASH) Annual Meeting6.12.2025 15:30:00 CET | Press release
Results from Phase 2a IMPRSSION study demonstrate sapablursen significantly reduced phlebotomy rate, controlled hematocrit and increased serum hepcidin Sapablursen was generally safe and well tolerated Results support further development of sapablursen in a Phase 3 study Deciphera Pharmaceuticals, a member of Ono Pharmaceutical Co., Ltd. (Headquarters: Osaka, Japan; President and COO: Toichi Takino; “Ono”), today announced the oral presentation of positive results from the Phase 2a IMPRSSION study of sapablursen in patients with polycythemia vera (PV) at the 67th American Society of Hematology (ASH) Annual Meeting, taking place December 6-9, 2025, in Orlando, FL. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251206361611/en/ The results were presented by Ionis Pharmaceuticals, who discovered and developed sapablursen and conducted the IMPRSSION study. In March 2025, Ionis and Ono entered into a license agreement in which On
Protagonist and Takeda Present Longer-Term Data at ASH 2025 Showing Rusfertide Delivers Durable Response and Hematocrit Control in Polycythemia Vera6.12.2025 15:30:00 CET | Press release
52-Week Results from the Phase 3 VERIFY Study of Rusfertide Demonstrated Sustained Hematocrit Control and Response, Defined by Absence of Phlebotomy Eligibility, with No New Safety SignalsThese Data Build on Positive 32-Week Primary Analysis from VERIFY, Which Met its Primary Efficacy Endpoint and All Four Key Secondary EndpointsPatients Crossing Over from Placebo to Rusfertide at 32 Weeks Achieved a Similar Response Rate to Those Initially Randomized to Rusfertide, with 77.9% Achieving Absence of Phlebotomy Eligibility Between Weeks 40-52Four-Year Results from the Combined REVIVE and Long-Term Extension THRIVE Study Demonstrated a 13-Fold Reduction in Annual Rate of Phlebotomies from Baseline Protagonist Therapeutics, Inc. (“Protagonist”) (NASDAQ:PTGX) and Takeda (TSE:4502/NYSE:TAK) announce that new 52-week results from the pivotal Phase 3 VERIFY study evaluating rusfertide in patients with polycythemia vera (PV) will be presented in an oral presentation at the 67th American Society
Vertex Presents New Data on CASGEVY®, Including First-Ever Data in Children Ages 5-11 Years, at the American Society of Hematology Annual Meeting and Announces Plan for Global Regulatory Submissions6.12.2025 13:01:00 CET | Press release
- Data from pivotal studies of CASGEVY in children ages 5-11 years with severe sickle cell disease or transfusion-dependent beta thalassemia demonstrates the transformative potential of the therapy in younger patients -- Efficacy and safety data in children 5-11 years are consistent with the durable and positive benefit/risk profile established from clinical studies in patients 12 years of age and older -- Vertex expects to initiate global regulatory submissions for CASGEVY in children 5-11 years in 1H 2026 - Vertex Pharmaceuticals Incorporated (Nasdaq: VRTX) today announced data from multiple studies demonstrating the clinical benefits of CASGEVY® (exagamglogene autotemcel) in people ages 5 years and older living with severe sickle cell disease (SCD) or transfusion-dependent beta thalassemia (TDT). The results, including the first presentation of clinical data from pivotal studies in children ages 5-11 years, and longer-term data from the pivotal studies of people with severe SCD and
Leading Global Scientists Gather at Tengchong Scientists Forum to Explore Innovative Pathways in Frontier Technologies6.12.2025 12:31:00 CET | Press release
The 2025 Tengchong Scientists Forum opened on Saturday in southwest China’s Yunnan Province, convening leading scientists and academic figures to examine innovation across frontier fields including artificial intelligence, biodiversity and quantum technology. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251205499197/en/ Opening ceremony of Tengchong Scientists Forum on 6th December, 2025 Notable participants include Nobel Physics laureate Konstantin Novoselov, Fields Medalist Efim Zelmanov and Turing Award winner Andrew Chi-Chih Yao, who join 127 academicians, 77 university presidents from China and abroad, over 400 scholars and more than 600 entrepreneurs and financiers. The gathering aims to deepen collaboration between cutting-edge research and industrial development. Under the theme “Science · AI changing the World,” the forum features ten sub-forums, academic sessions and thematic events supporting major cooperation p
Lattice Wins 2025 Global Semiconductor Alliance Award6.12.2025 00:49:00 CET | Press release
‒ Named Most Respected Public Semiconductor Company Achieving $100 Million to $500 Million in Annual Sales ‒ Lattice Semiconductor (NASDAQ: LSCC), the low power programmable leader, today announced that it was selected as ‘Most Respected Public Semiconductor Company’ at the 2025 Global Semiconductor Alliance (GSA) Awards. The GSA awards recognize companies that have demonstrated excellence through their success, vision, strategy, and future opportunities in the industry as determined by votes from GSA members. “We are honored to be recognized by the Global Semiconductor Alliance and our peers as one of 2025’s most respected public semiconductor companies. This recognition reflects the dedication of the Lattice team and the trust of our customers, partners, suppliers, and investors. Looking ahead, we remain laser-focused on driving innovation and strengthening our role as the trusted low power programmable leader for semiconductor and system solutions,” said Ford Tamer, Chief Executive
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
