strike
Downing Street said it would "embed inflation".
Gatwick, Heathrow, Birmingham, Cardiff, Manchester and Glasgow all impacted.
Unison members voted to walk out before Christmas in a dispute over pay.
It will be the first walkout in the Royal College of Nursing's 100-year history.
Shadow chancellor Rachel Reeves said ministers need to "act like firefighters rather than arsonists".
Billie Ahouzan is one of the care workers and cleaners at Sage Nursing Home in north London who have gone on strike. Along with his colleagues, he says they were left with no option after attempting to negotiate over issues of low pay, sick pay and union recognition. Ahouzan, who has worked at the home for 12 years, describes his love for the residents and the challenges he faced during the pandemic.
Care workers and cleaners say they have been “left with no choice” but to launch a strike.
Strikes and Covid-19 have meant that some students have had just two full weeks of teaching since 27 January, writes Sabrina Miller.
Ryanair, which has its main UK base at Stansted, will see many of its airports affected ahead of the bank holiday weekend.
"Honoured and very grateful."