Trailfinders boss Mike Gooley has revealed the business has now paid out more than £100 million in refunds owing to coronavirus.
Founder and chairman Gooley said the firm was faced "overnight" with the task of repatriating 20,000 clients while refunding a further 30,000 due to travel in March and April.
To date, Trailfinders has processed refunds for 100,000 people totalling £115 million.
"The scale of the impact on travel caused by the pandemic makes the 2010 volcanic eruption of Eyjafjallajokull seem like a picnic," said Gooley.
He further revealed Trailfinders has been forced to dip into its own cash reserves to the tune of £30 million to "bridge the gap" for clients with airlines and some other supplies proving slow to refund pipeline monies.
"At the extreme, some airlines have said refunds will take a year, and others are in administration," said Gooley. "Trailfinders have covered this shortfall from our own pocket."