Contact Us

Introducing Diio Signals 

Demand indicators for better schedule planning and revenue management.

Global Aircraft Emissions Monitor

Cirium uses actual flight and aircraft data to calculate fuel burn and emissions. No other independent source can provide calculations based on the same fused data sets.

With the largest data store of flight information, Cirium applies complete profiles of the actual flight and aircraft and then combines the aircraft and flight data with block fuel burn models to come up with highly accurate CO2 emissions.

Ascend by Cirium has provided values for more than five decades

  • Cirium has the largest ISTAT Certified Appraiser team in the industry.
  • Ascend by Cirium provides thousands of independent and trusted valuations and reports each year.
  • Ascend by Cirium offers sophisticated modeling with robust analysis to the world’s lessors, financial institutions, airlines, OEMs, MROs and insurers.

 Cast your vote for the Appraiser of the Year. We appreciate your support.

Cirium airline schedules data

Available in Diio MiTM, SRS AnalyzerTM or by API or download, Cirium’s airline schedule and routes data is updated more than 100,000 times a day. With the strictest quality assurance process in the industry, Cirium customers have access to complete and accurate schedule data, even during volatile times. Now with the introduction of DiioTM Schedule Snapshot, airline planners can analyze schedule changes by publication date.


Elevate your business

“Elevate your business showcases demonstrates the opportunity for innovation in a time of disruption,” says Jeremy Bowen, CEO at Cirium.

Data is a key element in accelerating digital transformation in aviation. Data fluency and analytics are driving bold decisions and reinvention among companies poised for success in a recovering market.

RELX logo