BBC News
By Caroline Davies
image captionLisbet Stone is stranded at Madrid Airport due to having an out-of-date coronavirus test result
Passenger Lisbet Stone says she is stuck in Madrid Airport after airline officials said her coronavirus test result was out of date.
The test must be taken in the three days before travelling.
For those with connecting flights, the test must be 72 hours before your final departure point to England.
Anyone arriving without one faces a fine of up to £500.
Mrs Stone originally travelled to Cuba in February 2020 to see family. The British Cuban dual national was unable to fly home to the UK when Cuba closed its borders in March.