You asked

Please could you make publicly available in electronic format a time series for the last 3yrs of sub-indices which form the aggregate index "Air Fares" (ONS Item_ID 620310) is composed. I believe the sub-indices are for domestic, short-haul and long-haul flights and for each of those further sub-indices exist for each advance booking period.

We said

Thank you for your enquiry regarding the domestic, European and long-haul airfares sub-indices.

Please see the downloadable spreadsheet accompanying this request. This contains the sub-indices for domestic (collected 1-month in advance), European (collected 1-month and 3-month in advance) and long-haul (collected 1-month, 3-month and 6-month in advance) airfares, for 2017 to July 2020 (the latest published data). The indices are presented on the January (of each year) = 100 basis, which are used to calculate the aggregated series.

Indices for April to June 2020 are unavailable as the price movement for airfares was imputed, while government travel restrictions were in place because of the coronavirus (COVID-19) pandemic.