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
Geoswift and SKUx Announce Strategic Partnership to Develop a First-of-Its-Kind Programmable Stablecoin Commerce Network29.6.2026 15:00:00 EEST | Press release
Geoswift and SKUx announced a groundbreaking partnership to develop a next-generation programmable stablecoin commerce network. This strategic collaboration bridges digital assets, traditional finance, and real-world commerce at a global scale, representing a "one-of-one" opportunity by combining Geoswift's global infrastructure with SKUx's specialized item-level controls directly within point-of-sale (POS) systems. While enterprise stablecoin usage continues to accelerate globally, governments, enterprises, payment networks, and AI-driven commerce platforms are increasingly seeking programmable payment infrastructure that can bridge digital assets with real-world commerce. The innovation goes far beyond treasury management or even enabling consumers to spend stablecoins at retail locations. Instead, it unlocks true "programmable money" with embedded controls, rules, and purpose-driven utility —requiring both programmable settlement and programmable spending controls. Geoswift and SKUx
Esri Sponsors Smithsonian Exhibition Showcasing Natural and Cultural Objects from All 50 States29.6.2026 15:00:00 EEST | Press release
Esri, the global leader in location intelligence, is sponsoring From These Lands: Sharing Our Natural and Cultural Heritage, a new exhibition at the Smithsonian's National Museum of Natural History that showcases objects from all 50 states and explores the deep connections between people, place, and the natural world that unite the nation. The exhibit, which opened this June 18 and runs through 2029, brings together more than 600 specimens and cultural artifacts from across the United States, Washington, DC, and the five territories that people call home. Drawing from the museum's own collection, From These Lands shows how natural systems, cultural traditions, and geography intersect. The exhibition presents stories that span millions of years—from ancient fossils and geological formations to cultural artifacts and scientific breakthroughs—inviting visitors to reflect on their own sense of place. By pairing natural specimens with cultural objects, From These Lands demonstrates how huma
Cartilage Tissue Engineering Heads to Orbit in NSF and NASA-supported Study at the International Space Station29.6.2026 15:00:00 EEST | Press release
Researchers in the DELTAi Lab at the University of California, Irvine, working with NASA, are using Evercode Cell Fixation to preserve samples aboard the International Space Station as part of a study of cartilage tissue engineering in microgravity. The unprecedented work, part of a National Science Foundation (NSF)-funded grant led by Dr. Wendy Brown and Dr. Kyriacos Athanasiou, announced today by Parse Biosciences, aims to advance treatments for the hundreds of millions of people worldwide affected by cartilage injury. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260629548658/en/ Rachel Nordberg, PhD, from the DELTAi Lab at UC Irvine, prepping the BioServe device before it goes into orbit. Cartilage injuries cause significant pain and disability, and the need for implants that can repair or regenerate damaged tissue without harming a donor site has gone unmet for decades. Part of the difficulty is gravity itself, which m
Court Clears Biocytogen’s RenNano ® in Landmark Patent Dispute Against Harbour29.6.2026 14:55:00 EEST | Press release
Biocytogen Pharmaceuticals (Beijing) Co., Ltd. ("Biocytogen," SSE: 688796; HKEX: 02315) today announced that it has received a first-instance civil judgment from the Shanghai Intellectual Property Court. The court ruled that Biocytogen did not infringe the relevant patent rights asserted by the plaintiff, Harbour Antibodies BV ("Harbour"), and ordered the plaintiff to bear the litigation costs. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260629347368/en/ Court Clears Biocytogen’s RenNano® in Landmark Patent Dispute Against Harbour The judgment marks a significant first-instance outcome in the litigation and further affirms the independent innovation and intellectual property compliance of Biocytogen's core technology platforms. It also provides greater clarity for existing and prospective partners evaluating the RenNano® platform, reinforcing confidence in the Company's technology platforms and long-term innovation capabi
MANE Selects Kinaxis to Strengthen Global Planning Capabilities29.6.2026 14:00:00 EEST | Press release
Kinaxis®(TSX:KXS), a global leader in end-to-end supply chain planning and orchestration, today announced that MANE, one of the top five leading organizations worldwide in the flavours and fragrances industry, has selected Kinaxis to modernize its planning capabilities as it accelerates global growth as part of a broader enterprise-wide transformation initiative. Headquartered in the south of France, with a significant global footprint spanning multiple regions and customers across international markets, MANE is known for its innovation, technical expertise and strong commitment to sustainability. The company is investing in more connected, end-to-end planning capabilities to support continued growth and increasing operational complexity worldwide. Following an extensive evaluation process with major competitors in the market, MANE selected the Kinaxis Maestro platform for its proven ability to support complex, multi‑region planning environments with speed, transparency, and confidence
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