Emission factor from JRC-IDEES v2023-1.00
Passenger aviation - International - Intra-EEAwCHUK, real-world
European Union (27) · Combustion · 2023 onwards
Value per kilometre driven
11.9kgCO₂e/km
Fossil only · CO₂ only
- Region
- European Union (27)
- Boundary
- Combustion
- Data quality
- MediumRated by us, not by the source
- Licence
- Open · CC BY 4.0
Where 11.9 comes from
JRC-IDEES prints this factor as a single figure, with no parts to add up.
Reporting this kilometre under the GHG Protocol
Scope 3, category 6 11.9
A trip for work is business travel, Scope 3, category 6, whoever books it.
The factor, standardised
Every factor on open-climate.ai answers the same questions in the same words, whatever the publisher. Open any ⓘ for the definition.
Transport › Air travel · European Union (27) · per km · Average
Combustion · Fossil only
- BoundaryCombustionDirect emissions from burning the fuel at the point of use, in a boiler, furnace, engine or vehicle (for a vehicle, tank-to-wheel). Learn more
- Combustion
- Fuel combustion
- GWP methodWhich IPCC assessment report's warming potentials convert each gas to CO₂e, and over how many years the warming is counted (GWP100: 100 years). Learn more
- None: the value counts CO₂ alone
- CO₂ weighs 1 in every IPCC report, so no GWP applies
- CO₂e basisWhich carbon the CO₂e counts. Fossil only leaves out biogenic CO₂ and land use; net total counts every pool, net of removals. The same activity on two bases is two different numbers. Learn more
- Fossil only
- All of it is CO₂
Medium quality · Open licence · 2000 to now
All values
24 values, one per year back to 2000. Every one is fossil only, so the years compare directly.
2023 onwards11.9Default value
- Default: what search and the API return when you ask for nothing specific
What this number covers
The path of one vehicle-kilometre, from the oil well to the end of the trip.
Vehicle operation
Burning the fuel in flight, spread over the average load
Included11.9Your trip
1 km driven. The factor is per vehicle-kilometre.
= 11.9
Outside this boundary
- Upstream fuel (well-to-tank)
- Building the aircraft
- Airports
This factor counts the fuel the vehicle burns, not the vehicle itself or the infrastructure it runs on. Some libraries price building the vehicle as a factor of its own.
Gases in vehicle operation
Basis: Fossil onlyFossil carbon only: biogenic CO₂, methane from biogenic sources and land-use change are left out. Learn more
- Fossil CO₂11.9
The CO₂e counts fossil carbon only; biogenic CO₂, biogenic methane and land-use carbon are left out.
From JRC-IDEES's record to a comparable factor
JRC-IDEES publishes this factor as one record. Here is each field as printed and what open-climate.ai made of it.
About this factor
JRC-IDEES gives no description for this factor. Filed under Transport › Aviation › Passenger transport › International - Intra-EEAwCHUK.
Source and licence
- Publisher
- European Commission, Joint Research Centre (JRC-IDEES)
- Library
- JRC-IDEES v2023-1.00
- Record
- EMIint.gCO2_per_km.EU27.Tr.Avia.Passenger.IntraEEAwCHUK
- Published
- 6 November 2025
The values and their metadata are served in full and may be reused with credit to the publisher.
Cite this factor
© European Union, 1995-2026. JRC-IDEES-2023 (Integrated Database of the European Energy System), European Commission, Joint Research Centre, v2023-1.00. CC BY 4.0. Normalised by open-climate.ai, https://open-climate.ai/factors/libraries/jrc_idees/ (CC BY 4.0). https://open-climate.ai/factors/ef-jrcidees-passenger_aviation-eu27-km-combustion-af7e5a86/?v=efv1-b9bef13e653ed93cb1f9b7d21dbf438f
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