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
Lattice to Showcase Industry-Leading FPGA Innovations at FPGA Conference Europe 202616.6.2026 23:00:00 EEST | Press release
Lattice Semiconductor (NASDAQ: LSCC), the low power programmable leader, today announced its exhibition plan for the upcoming FPGA Conference Europe. Lattice will participate in various speaker sessions to showcase how low power FPGAs are driving innovation across multiple sectors. The company will also demonstrate its latest FPGA technology advancements in physical AI, advanced connectivity, security, and more. Who: Lattice Semiconductor What / When (GMT+2): June 30 – July 2: Lattice Presentations & Demo Showcase Speaker sessions: Day 1 – 3 Speaker Sessions: Lattice FPGA deep dive sessions spanning physical AI, advanced connectivity, security, and design tools Date Time Session June 30 9:45 a.m. FPGA Verification and Testing by Arrow 11:15 a.m. Trusted Resilience Edge: Unified FPGA-TPM for Post-Quantum Cryptography RED & Cyber Resilience Act 12 p.m. SIPHashIP for Embedded Security: Enabling RED Compliance and CRA Readiness in Smart AR/VR Systems 2:15 p.m. Foundations of FPGA Security
IQM Deploys Its First U.S. Quantum Computer at Oak Ridge National Laboratory16.6.2026 21:53:00 EEST | Press release
The Department of Energy's Oak Ridge National Laboratory (ORNL) today launched Pathfinder, the first commercially procured quantum computer at ORNL, built and deployed by IQM Quantum Computers. The 20-qubit IQM Radiance system marks IQM's first quantum computer installation in the United States. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260616373175/en/ IQM's first U.S. quantum computer is live — at DoE Oak Ridge National Laboratory. The deployment comes ahead of IQM's planned listing on the Nasdaq Global Select Market through its business combination with Real Asset Acquisition Corp. (Nasdaq: RAAQ), expected to close in mid-2026. ORNL is home to Frontier, the world's most powerful supercomputer for open science, and to one of the most consequential high-performance computing environments anywhere. Pathfinder now sits inside that environment, connected to HPC systems in the National Center for Computational Sciences Tec
Hologic Secures Significant Patent Victory Against Siemens Over Breast Cancer Detection Technology16.6.2026 20:00:00 EEST | Press release
Hologic, Inc. today announced a significant and far-reaching victory in the Unified Patent Court (UPC) in Germany, which ruled that Siemens* infringed upon a critical Hologic mammography technology patent in Siemens’ latest mammography system. The court imposed a sweeping injunction, immediately prohibiting Siemens from making, offering, placing on the market, using or importing or storing for those purposes its MAMMOMAT B.brilliant systems across Germany, France and the Netherlands, as well as monetary damages and penalties for non-compliance. The court also required Siemens to execute a mandatory recall and destruction of all affected systems in those countries. On June 10, 2026, the UPC determined that Siemens infringed upon European Patent EP 2 352 431, Hologic’s Focusing Technology on the Envision™ Platform, the first FDA-approved mammography innovation of its kind.1 In addition to the broad injunction against Siemens, recall and destruction of infringing systems, Hologic will rec
RealTime Reservation Acquires STAY to Create Leading Global Guest Experience Platform Serving 2,000+ Properties Across 75+ Countries16.6.2026 19:30:00 EEST | Press release
RealTime Reservation (RTR), the industry leader in dynamic hospitality booking technology for onsite activities, amenities, and ancillary revenue management, today announced its acquisition of STAY, creating a global end-to-end guest experience platform for the hospitality industry. The combined company will serve more than 2,000 hospitality properties across 75+ countries throughout North America, Europe, Latin America and the Caribbean. The combination significantly expands RTR's international footprint and strengthens its position as a leading provider of guest engagement, ancillary revenue, and guest experience technology. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260616258776/en/ Pictured: RealTime Reservation's dynamic booking interface allows hotel guests to select and reserve pool and beach amenities by location, date, and availability, streamlining ancillary revenue management for properties of any size. Courte
Happy Holidays S.A. and JTA Investment Holding Announce €65 Million Investment for SARTIMARE Tourism Development in Greece16.6.2026 18:42:00 EEST | Press release
Happy Holidays S.A. today announced the signing of an Investment Agreement with Qatar-based JTA Investment Holding for the development of the sustainable SARTIMARE Beach Resort & Spa project in Sarti, Halkidiki, Greece. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260616892834/en/ Dr. Amir Ali Salemi Zadeh, CEO of JTA Investment Holding and Georgios Iosifidis, Founder & Owner of Happy Holidays S.A. Under the agreement, JTA Investment Holding will invest €65 million into the development. The project will be built on a site of approximately 120,900 square meters, with construction scheduled between 2027 and 2030. Designed with a strong commitment to environmental responsibility, the SARTIMARE project will feature luxury hospitality facilities, premium residences and villas, wellness amenities, retail, food & beverage outlets, and marina infrastructure. The project's valuation is expected to exceed €100 million as key develop
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
