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Written question asked by Richard Holden (Conservative) on Wednesday, 4 March 2026, in the House of Commons. It was due for an answer on Monday, 9 March 2026 (named day). It was answered by Luke Pollard (Labour) on Monday, 9 March 2026 on behalf of the Ministry of Defence.


Aviation: Fuels

Question

To ask the Secretary of State for Defence, what estimate his Department has made of (a) the projected market price per litre of conventional aviation turbine fuel (Jet A-1) in each year from 2025 to 2040 and (b) the marginal cost difference per litre between conventional aviation turbine fuel and Sustainable Aviation Fuel in each of those years.

Answer

The Royal Air Force in conjunction with the Ministry of Defence Directorate Analytics are able to provide an estimated cost of the price per litre of both Conventional Aviation Turbine and Sustainable Aviation Fuel (SAF) in each year from 2025-2040, and the marginal cost difference between them. However, the data in the below table is subject to change dependent on market fluctuation of fuel costs.

The below forecasts are in United States Dollars (USD) per litre and will be subjected to currency conversion, which is changeable. Oil is generally bought and sold on the market in USD.

Year

Estimated cost in USD per litre for conventional aviation fuel

Estimated cost in USD per litre for SAF

Estimated cost difference between SAF and conventional aviation Fuel per litre

2025

0.56

1.62

1.06

2026

0.48

1.50

1.02

2027

0.52

1.54

1.02

2028

0.56

1.61

1.05

2029

0.56

1.62

1.06

2030

0.58

1.66

1.07

2031

0.58

1.65

1.07

2032

0.59

1.67

1.07

2033

0.61

1.69

1.08

2034

0.62

1.70

1.09

2035

0.63

1.72

1.09

2036

0.64

1.74

1.10

2037

0.65

1.76

1.10

2038

0.66

1.77

1.11

2039

0.67

1.79

1.12

2040

0.69

1.81

1.12


Secondary information

Type
Written question
Reference
117907
Session
2024-26
Subjects
Aviation Fuels Prices
Contains statistics
Yes
Link
View this Written question on www.parliament.uk