Factor record · international-to-from-non-uk-premium-economy-class-with-rf-passenger-km-scope-3-defra-2026last verified 2026-07-31 · DESNZ
0.17465
kgCO2e / passenger.km

International flight — Premium economy class

Business travel · Air transport · Passenger flight
DEFRA 2026Scope 3*activity based
Climate treatment

Includes DEFRA’s estimate of aviation’s non-CO₂ climate effects.

Unchanged from 2025
0.17465 kgCO2e/passenger.km in 2025
GHG Breakdown
CO₂
0.1736
kgCO2e/passenger.km
CH₄
0.0000
kgCO2e/passenger.km
N₂O
0.0011
kgCO2e/passenger.km
Record
Identifier
ac9710f04a73
Activity
International flight — Premium economy class
Activity class
Business travel · Air transport · Passenger flight
Category
transport
Sub-category
Flights
Flight type
International, to/from non-UK
Cabin class
Premium economy class
Radiative forcing
Included (with RF)
Region
GBR · United Kingdom
Value
0.17465 kgCO2e/passenger.km
Scope 3 category
Category 6
Methodology
activity based
GWP
AR5 / GWP100
Vintage year
2026
Published
2026
Source reference
Factors by Category sheet, ID 21_316_3182_11_1
Verified
2026-07-31 · DESNZ
Open primary source
Citation
DEFRA 2026, International flight — Premium economy class, Factors by Category sheet, ID 21_316_3182_11_1
Methodology

Derived from direct physical activity measurements (litres, kilometres, kilograms). The most accurate approach where activity data exists.

Notes

Radiative forcing (RF) · With RF estimates aviation’s broader climate impact by applying DEFRA’s 1.7 central multiplier to the direct CO₂ component for effects such as contrails, water vapour and nitrogen oxides. Without RF includes direct CO₂, CH₄ and N₂O only. Both choices already include DEFRA’s 8% route-distance uplift. Choose one option, never add them together. Use With RF for a broader climate-impact estimate; use Without RF when a reporting method specifically requires direct greenhouse gases only or for consistency with an established base year.

* Scope 3 boundary · Use this factor for Scope 3 Category 6 passenger flights undertaken for business in aircraft outside the reporting organisation’s ownership or control. Multiply passenger-kilometres by the factor matching the flight type and cabin class. The matching well-to-tank factor is a separate Scope 3 Category 6 upstream-fuel component.

Department for Energy Security and Net Zero · 2026 · Open Government Licence v3.0Back to the library