Cirium: Radical Shifts in US Flight Schedules This Summer Reveal Why Airlines Need New Planning Tools to Stay Ahead of the Curve
27.10.2021 15:00:00 EEST | Business Wire | Press release
The new DiioTM Schedule Snapshot offering released by Cirium, the aviation analytics firm, reveals how planning by the major US airlines changed over the summer, with 20% of flights being removed from their schedule for September.
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20211027005581/en/
The September flight schedules as published by American Airlines, Delta Air Lines, Southwest, and United Airlines initially in May compared with the revised plan published four months later. (Graphic: Business Wire)
At the start of May 2021, the plan for what carriers would fly in September was more or less in line with pre-pandemic levels in 2019. By the time they came to fly the September schedule, American Airlines, Delta Air Lines, Southwest and United Airlines had significantly cut back their flights.
Airlines are now making major changes to the way they schedule flights—publishing or removing them much closer to the date of departure as they struggle with the uncertainties brought on by the pandemic.
Prior to the pandemic schedules would remain fairly stable over a season, with few changes—positive or negative—as the plan was refined.
Only 3% of flights were removed from the September schedule in 2019 compared with the plan published in May that year.
The new Diio Schedule Snapshot web-based tool enables airlines and airports to track changes to the flights being scheduled at different points in time. It provides much more detail on schedule changes than has been done in the past.
“In today's environment where travel restrictions and vaccination programs are significantly impacting flight schedules, airlines have had to adapt and issue changes to their schedules frequently and much closer to the day of departure. The traditional methods used to analyze demand need to be more dynamic,” said Kevin O’Toole, Chief Strategy Officer at Cirium.
“Using Diio Schedules Snapshot, airlines and airports can understand schedule changes over time, optimize future schedules, build stronger models for planning and revenue management, and optimize yield through trend analysis.”
The analysis of the major US airlines evidences the radical shift in the summer flight schedule and the impact that the pandemic has had on the variance in airline planning year-over-year.
Understanding and comparing changes to the published flight schedule over time as it gets closer to actual departure, enables analysts to stay ahead of the curve, and provides new insights for planning and revenue management.
Reviewing historical data by publication date also provides insights on airline and airport strategies in an uncertain world.
Diio Schedule Snapshot is part of the unrivaled Cirium Diio suite of products for airline planning. The suite includes Diio Mi, SRS AnalyserTM, Cirium Scenario Planner, and Diio Traffic and Fares.
The new tool integrates with Cirium Diio Mi or SRS Analyser and is the first of many more new tools in the Cirium pipeline to help airlines optimize their schedules and find new revenue opportunities.
More information on Diio Schedule Snapshot can be found at https://cirium.com/products/views/diio-schedule-snapshot
-End-
For further information please visit https://www.cirium.com and follow Cirium updates via LinkedIn and Twitter.
About Cirium
Cirium brings together powerful data and analytics to keep the world moving. Delivering insight, 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.
To view this piece of content from cts.businesswire.com, please give your consent at the top of this page.
View source version on businesswire.com: https://www.businesswire.com/news/home/20211027005581/en/
Contact information
For media enquiries please contact:
Mike Arnot, Juliett Alpha via cirium@juliettalpha.com
or the Cirium media team at media@cirium.com
About Business Wire
For more than 50 years, Business Wire has been the global leader in press release distribution and regulatory disclosure.
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
KATE Launches "KABUKE: Break Convention" Kabuki-Inspired International Campaign17.7.2026 10:00:00 EEST | Press release
Global cosmetics brand KATE launched “KABUKE: Break Convention,” a new international campaign drawing on elements of Kabuki, the traditional Japanese performing art. The campaign debuted on Wednesday, July 8, 2026. In this campaign, KATE’s shadow enhancing makeup—rooted in Japanese aesthetics—was paired with the Kabuki spirit inherited from traditional Kabuki theater to communicate the value of individuality and self‑expression through makeup on a global scale. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260708829427/en/ KATE international campaign “KABUKE: Break Convention” key visual. Dedicated website: https://www.kate-global.net/my/special/kate_kabuki/ Since its founding, KATE has championed the slogan “NO MORE RULES.,” offering makeup that defies convention and empowers individuals to express their identity and bring out confidence. At the heart of this vision is the brand’s signature shadow enhancing makeup approach
Yoshihiro Shimamura Joins the Marché du Film’s “Investors Circle 2026” as an Invited Investor, Backing a New Feature Film17.7.2026 04:00:00 EEST | Press release
Shimamura Yoshihiro Film Production Co., Ltd. (Head office: Osaka, Japan; Representative Director: Yoshihiro Shimamura), a company active in film production and investment, today announced that Representative Director Yoshihiro Shimamura has decided to invest in an international feature film after being invited to the “Investors Circle 2026” — a distinction that reflects his standing as one of the field’s most highly regarded producers and investors. Hosted by the Marché du Film, the business arm of the Festival de Cannes and one of the world’s largest film markets, the Investors Circle is an invitation-only summit that connects a select group of private investors with high-end feature films during early-stage financing. Held in Cannes, France, May 16-17, 2026, it brings internationally acclaimed directors and producers together with investors around a curated slate of projects in development. During the summit, Shimamura attended private pitching sessions and, after individual meeting
Meiji Seika Pharma: Results from the Global Phase III Trial (Integral-2) of Nacubactam, a Novel β-Lactamase Inhibitor, Highlighted in The Lancet Microbe ’s Coverage of ESCMID Global Congress 202617.7.2026 04:00:00 EEST | Press release
Meiji Seika Pharma Co., Ltd. (Headquarters: Tokyo, President and Representative Director: Toshiaki Nagasato) today announced that results from the global Phase III trial (Integral-2) of nacubactam (Development Code: OP0595), a novel β-lactamase inhibitor, were highlighted in The Lancet Microbe’s coverage of ESCMID Global Congress 2026 (held in Munich, Germany). As highlighted in The Lancet Microbe’s coverage, the key findings presented by Meiji Seika Pharma at ESCMID Global Congress 2026 are as follows: The Integral-2 study (jRCT2031230076) is a global Phase III clinical trial that enrolled patients with complicated urinary tract infections, acute uncomplicated pyelonephritis, hospital-acquired bacterial pneumonia, ventilator-associated bacterial pneumonia, or complicated intra-abdominal infections caused by carbapenem-resistant Gram-negative bacteria (excluding Acinetobacter species). The study has achieved the prespecified study objectives. For the primary endpoint of overall treatme
Takeda’s Zasocitinib Demonstrates Consistent, High Rates of Skin Clearance Across the Body, Including Hard-to-Treat and High-Impact Sites, in Phase 3 Psoriasis Studies17.7.2026 01:00:00 EEST | Press release
Takeda (TSE:4502/NYSE:TAK) announced new data from the two pivotal Phase 3 studies of zasocitinib (TAK-279), a next-generation, highly selective and potent oral tyrosine kinase 2 (TYK2) inhibitor, in adults with moderate-to-severe plaque psoriasis (PsO).1 Presented at the 2026 American Academy of Dermatology (AAD) Innovation Academy, these secondary endpoint data show that zasocitinib demonstrated consistent and high rates of skin clearance across hard-to-treat, high-impact sites, including the scalp, nails, palms and soles, compared with placebo.1-5 These data build on the topline results from the Phase 3 randomized, multicenter, double-blind, placebo- and active comparator-controlled LATITUDE PsO 3001 and 3002 studies.2,6 In those studies, about 70% of patients treated with zasocitinib achieved static Physician Global Assessment (sPGA) 0/1 (clear or almost clear skin) at week 16, with a significantly greater Psoriasis Area and Severity Index (PASI) 75 response rate seen as early as w
Merz Completes Inaugural €450 Million Schuldschein Loan Issuance17.7.2026 00:36:00 EEST | Press release
The Merz Group has successfully completed its first-ever Schuldschein loan issuance, placing a total volume of €450 million in the debt capital market – a multiple of three relating to the launch volume. The debut transaction was significantly oversubscribed and attracted strong interest from all investor groups. The proceeds were settled and paid out today. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260716926041/en/ Dr. Almuth Steinkühler, Chief Financial Officer Merz Group The transaction comprises both fixed- and floating-rate tranches with maturities of three, five, seven, and ten years. Around 50 German and international investors participated, representing a broad range of institutions, including private banks, German federal state-owned banks, public savings banks, cooperative banks, pension funds and occupational pension institutions. With the successful placement, Merz has further diversified its funding base by
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