Following this, the body will then decide whether or not to launch enforcement against individual airlines.
Previously, money saving expert Martin Lewis described the fight for flight refunds as a “nightmare”.
“There are systemic problems with some travel firms who are just not budging and making it bureaucratically difficult,” he said.
“People have had this problem with so many different travel companies.”
Following the decision, Rory Boland, Which? travel editor said: “Airlines have often put customers in an impossible situation by operating flights during lockdown restrictions and refusing to offer cash refunds to people who cannot lawfully travel – so it is right that the CMA has stepped in to investigate and it should take strong action, where appropriate.
“We expect the hundreds of thousands of people who were simply following government rules by not taking flights to be issued refunds or given the option of a refund, as a result of this investigation.”
