Bangkok was declared a disaster-affected zone at the weekend after receiving 320mm of rain over three days, as much as it typically receives in all of September.
Thai Tourism Minister Surasak Phancharoenworakul singled out Thai Airways for rebuke on Tuesday.
“We need to discuss how the management needs to work more proactively,” he told reporters. “If they don’t want to do the job, then resign.”
Chai, who has publicly apologised for the chaos that hit Thai Airways’ operations at Suvarnabhumi airport, joined the carrier in 1985, rising through the ranks to become its chief financial officer before being appointed CEO in 2023.
As of June 30, the airline operated a total of 84 aircraft covering 61 destinations in 27 countries.
In 2020, Thai Airways went into bankruptcy-protected restructuring, reducing its workforce by half and trimming its fleet, but went on to mount a turnaround in its finances. Its shares resumed trading on the stock market in August, after exiting its debt restructuring programme.

