Long-haul flight — Average passenger
Includes DEFRA’s estimate of aviation’s non-CO₂ climate effects.
- Identifier
- SLSrMTrl1bJO
- Activity
- Long-haul flight — Average passenger
- Activity class
- Business travel · Air transport · Passenger flight
- Category
- transport
- Sub-category
- Flights
- Flight type
- Long-haul, to/from UK
- Cabin class
- Average passenger
- Radiative forcing
- Included (with RF)
- Region
- GBR · United Kingdom
- Value
- 0.15282 kgCO2e/passenger.km
- Scope
- Scope 3*
- Scope 3 category
- Category 6
- Methodology
- activity based
- GWP
- AR5 / GWP100
- Vintage year
- 2025
- Published
- 2025
- Source reference
- Factors by Category sheet, ID 21_316_3168_11_1
- License
- Open Government Licence v3.0
- Verified
- 2025-06-10 · DESNZ
DEFRA 2025, Long-haul flight — Average passenger, Factors by Category sheet, ID 21_316_3168_11_1
Derived from direct physical activity measurements (litres, kilometres, kilograms). The most accurate approach where activity data exists.
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.