Cirium: Radical Shifts in US Flight Schedules This Summer Reveal Why Airlines Need New Planning Tools to Stay Ahead of the Curve
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
Cirium Ascend Consultancy Named Appraiser of the Year at the Aviation 100 Awards for a Record 11th Time27.1.2026 08:00:00 EET | Press release
Cirium Ascend Consultancy has been named Appraiser of the Year 2026 in the Airline Economics Aviation 100 Global Leaders Awards, the team’s 11th title in 15 years. The Consultancy is a highly respected division of Cirium, the world’s most trusted source of aviation analytics. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260126679094/en/ AOTY Win The Appraiser of the Year award recognizes the aircraft appraisal provider that has demonstrated the greatest contribution to the industry over the past year. The fourth consecutive win reflects the trust placed in the Ascend Consultancy team and their work by their industry peers. The Aviation 100 Global Leaders Awards celebrate the best companies, individuals and transactions in the aviation finance and leasing sector. Accolades are awarded based on an industry-wide survey and an expert panel of judges. “Receiving Appraiser of the Year for the 11th time is a meaningful endorsemen
Ohana Development and Manchester City F.C. Sign Agreement to Launch Multi-Billion-Dirham Project in Abu Dhabi27.1.2026 08:00:00 EET | Press release
Ohana Development, a leading UAE real estate developer renowned for its luxury properties, has signed an agreement with Manchester City F.C. to launch ‘Manchester City Yas Residences by Ohana’, a first-of-its-kind branded residential community, set along Abu Dhabi’s Yas Canal waterfront. The partnership reflects a shared commitment to excellence, innovation and long-term value creation, reinforcing Abu Dhabi’s position as a global destination for world-class developments. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260126122700/en/ Standing: HE Khaldoon Al Mubarak, Chairman of Manchester City Football Club. Left to right: Husein Salem, CEO of Ohana Development and Ferran Soriano, CEO of City Football Group. (Photo: AETOSWire). Spanning 1.67 million square metres, ‘Manchester City Yas Residences by Ohana’ draws on the club’s global appeal and legacy, reimagined through a contemporary lens, aligning Manchester City’s identi
EIB Provides €20 Million in Financing to SamanTree Medical for Real-Time Microscopy for Surgical Procedures27.1.2026 08:00:00 EET | Press release
SamanTree Medical, a European leader in surgical imaging innovation, has secured €20 million in financing from the European Investment Bank (EIB). The operation is backed by InvestEU, the EU’s flagship program to mobilize over €372 billion in additional investment from 2021 to 2027. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260126080876/en/ The European Investment Bank (EIB) provides €20 million in financing to SamanTree Medical, a leader in surgical imaging innovation. The financing supports the development of an advanced confocal microscopy scanner for rapid imaging of the internal microstructure of tissue samples during surgical procedures, R&D and continued development and advancement of the company's Histolog® Scanner, the first and only medical imaging device featuring massively parallel confocal microscopy. Shown: Alessandro Izzo, EIB Director (left) and Olivier Delporte, CEO of SamanTree Medical (right). The fin
Access Advance Extends HEVC Advance Rate Increase Deadline27.1.2026 03:00:00 EET | Press release
Access Advance LLC today announced that the Licensors of HEVC Advance have approved an extension of the deadline for new Licensees to secure current royalty rates and caps through 2030. Companies that become Licensees of the HEVC Advance program on or before June 30, 2026 will secure current royalty rates for both ongoing royalties and calculation of royalties for past sales. This is a temporary postponement of the 25% increase in rates and caps applicable to Licensees who sign up after the previous December 31, 2025 deadline. The extension also applies to the Multi-Codec Bridging Agreement ("MCBA"), which provides a single discounted royalty rate structure for Licensees in both the HEVC Advance Patent Pool and the VVC Advance Patent Pool. Licensees who execute the MCBA by June 30, 2026 will benefit from royalty caps that match the royalty caps for the VVC Advance program. The extension follows Access Advance's record 4th Quarter growth in all three main patent pools, a 100% renewal ra
ANTA Sports to Acquire 29% Stake in PUMA, Further Strengthening Globalization Strategy27.1.2026 02:17:00 EET | Press release
ANTA Sports Products Limited (“ANTA Sports” or the “Company,” stock codes: 2020 (HKD counter) and 82020 (RMB counter), and its subsidiaries collectively the “Group”), today announced it has reached a share purchase agreement with Groupe Artémis, the investment company of the Pinault family, to acquire a 29.06% stake in PUMA SE, the company behind iconic global sports brand PUMA. The stake is valued at EUR 1.5 billion in cash. The transaction marks a significant step in ANTA Sports’ globalization strategy, further enhancing its reach, recognition and competitiveness in the global sporting goods market. The transaction is expected to close by the end of 2026, subject to relevant regulatory approvals and customary closing conditions. The equity acquisition will be entirely financed with ANTA Sports’ internal cash resources. Ding Shizhong, Board Chairman of ANTA Sports, commented: “This acquisition makes ANTA Sports the largest shareholder of PUMA and marks a major step forward in our ‘sin
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
