Cirium Flight Emissions Review
Transparent airline rankings report
The world’s most trusted source of aviation analytics
Flight Emissions Review
Get vital insights for airlines, airports, and industry leaders with unmatched accuracy in emissions tracking.
- Global Airline Category Rankings
- Regional Performance
- Route-Level Improvements
- Operational Insights
On-Time Performance
See how airlines and airports rank for schedule reliability. Download the Monthly Reports and the Annual review.
The Appraiser of the Year
Cirium Ascend Consultancy has been named Appraiser of the Year 2026 in the Airline Economics Aviation 100 Global Leaders Awards.
Experience the power of AI designed to transform aviation analytics.
From flight schedules to emissions to aircraft lease rates.
WEBINAR
WATCH ON-DEMAND
Future Flight: Shaping traveler experiences with aviation analytics
Unlock real-world insights and practical strategies to optimize operations and enhance the overall traveler experience. Moderated by Cirium’s Ellis Taylor, with a presentation from Joanna Lu, Cirium Ascend Consultancy, and guest speakers Anthony Cicuttini, Brisbane Airport Corporation, Nate Srinath Nudurupati, Inxee and Hamsin Nashrudin, Cirium.
Cirium data
Deliver on sustainability promises with the most accurate aircraft and flight emissions data
EmeraldSky provides the most accurate aircraft and flight emissions data in aviation.
Cirium data coverage continues to grow
Cirium monitors more than 99% of commercial flights worldwide, supplying data and analytics to the majority of the top 100 airline groups. Combined with schedules for over 900 airlines and 99.5% coverage of scheduled passenger seats. As well as, over 300 datapoints on commercial aircraft globally and aircraft details for over 770 different aircraft types.
Receive monthly reports, updates and analysis based on Cirium data and analytics
Sign up
Cirium Sky Warehouse
Advance strategic planning and post-operations analysis by integrating historical and forward-looking aviation data into chosen business systems.
Cirium Ascend Value Trends
Monitor and benchmark value and liquidity metrics by aircraft asset classes.
Diio Advance Bookings
The next generation of Diio tools is here.
Cirium Sky Stream
Improve operations and reduce disruption and costs with an Integrated Flight Feed of real-time aircraft positional analytics.
Cirium Ascend Asset Watch
Accurately track flight and ground activity of a portfolio of aircraft and analyze CO2 emissions by aircraft and engine type.
Cirium Sky Emissions API
Get airline schedules with flight-based emissions data delivered through an easy to manage API.
THOUGHT CLOUD
EXPLORE THE CIRIUM BLOG
-
Scoot, Qatar, and Ryanair top Cirium global airline emissions rankings in 2025
Read more: Scoot, Qatar, and Ryanair top Cirium global airline emissions rankings in 2025Singapore-based Scoot has been named the world’s most emissions-efficient airline in Cirium’s 2025 EmeraldSky Annual Review
-
The Immediate and Current Impacts to Middle East Hub Airports and Airlines
Read more: The Immediate and Current Impacts to Middle East Hub Airports and AirlinesDaily Airline Cancellations and Flight Schedule Adjustments
-
The Monthly On-Time Performance Report – March 2026
Read more: The Monthly On-Time Performance Report – March 2026Global flight cancellations up 111%