In April 2020 the BBC England Data Unit and the BBC Shared Data Unit reported experts warning some airports were "at risk" of closure because of the loss of business during the coronavirus pandemic.
Nine out of 10 flights had been grounded since the UK went into lockdown, analysis showed.
Airports said cargo flights were running and shareholders were being supportive as they worked to cut costs.
Flight tracking website Flightradar24 recorded just 711 departures from the UK's 10 biggest airports last week.
This compared with 7,865 in the week up to the UK's lockdown.
The Shared Data Unit makes data journalism available to news organisations across the media industry, as part of a partnership between the BBC and the News Media Association. Stories generated by the partnership included:
- The Sun: ON THE GROUND Airports across the UK at risk of permanent closure as flights drop by 90 per cent 21 April 2020
- The Scotsman: These are the UK airports with the biggest drop in traffic since lockdown began 21 April 2020
- Pontefract & Castleford Express: These are the UK airports with the biggest drop in traffic since lockdown began 21 April 2020
- Edinburgh Evening News: Edinburgh Airport handling just 3% of usual flights 21 April 2020
- Edinburgh Live: Just 16 flights took off from Edinburgh Airport last week - a 97% drop in take-offs 21 April 2020
- Fife Today: Edinburgh and Glasgow airports handling less than 10 per cent of usual flights 21 April 2020
- Lancs Live: UK's biggest airports see huge drop in flights since pandemic 21 April 2020
- Nottinghamshire Live: How East Midlands Airport is coping with 'rapid' decline in passenger flights 21 April 2020
- Portsmouth: The News: Southampton Airport flight traffic plummets by 94 per cent since lockdown 21 April 2020
- Romsey Advertiser: Just four flights from Southampton airport last week as nine out of ten flights cancelled nationwide 21 April 2020
- Leicestershire Live: East Midlands Airport now one of Europe's 10 busiest because of coronavirus 21 April 2020
- Spirit FM: 99% of Gatwick flights grounded during coronavirus lockdown 21 April 2020
- Hull Live: UK's biggest airports see huge drop in flights since pandemic 21 April 2020
- Grimsby Live: UK's biggest airports see huge drop in flights since pandemic 21 April 2020
- Birmingham Live: Flights grounded and just eight departures a week - inside Birmingham Airport during coronavirus crisis 22 April 2020
- Coventry Live: Birmingham Airport on lockdown: What's happening with 98% of flights grounded 22 April 2020
- Glasgow Evening Times: Glasgow Airport flights drop by 97% due to coronavirus lockdown 22 April 2020
- Leighton Buzzard Observer: London Luton Airport sees huge drop in flight traffic since lockdown began 22 April 2020
- Herts Live: Hertfordshire coronavirus: Huge drop in flights at Luton Airport and Stansted Airport as nine out of 10 UK flights are grounded 22 April 2020
- The Scarborough News: Figures show impact of lockdown on Leeds Bradford Airport as no flights take off for whole week 23 April 2020
- Wigan Today: Most flights from region's airports have been grounded 24 April 2020
- Chronicle Live: Newcastle Airport down to four flights a week as Covid-19 impacts commercial air travel 25 April 2020
- Line chart: Decline in tracked departures from the 10 biggest UK airports
You can find all coronavirus-related stories by the BBC data units tagged 'coronavirus' here