Put the kiel-bosh-a on it!

The mayor of Krakow abruptly called off a sitdown next week with Polish airline representatives and Mayor Eric Adams in City Hall — after a historic federal indictment accused Hizzoner of accepting free luxury airline travel, The Post has learned.

Aleksander Miszalski was scheduled to meet Adams on Monday along with representatives from LOT Polish Airlines, the flag carrier of the country, the European city’s nonprofit to promote tourism and the mayor’s international affairs team, according to City Hall sources.

But after the Southern District of New York unsealed a five-count indictment against Adams last Thursday, alleging wire fraud and bribes that came in the form of business class tickets on the Turkish Airlines and other luxurious travel accommodations arranged by foreigners —  the Polish mayor’s camp called it off.

“He didn’t want to be seen with the mayor after the indictment, especially since he’s new to office,” said one City Hall source.

“It’s no surprise that international leaders are now wary of meeting with Adams — word travels fast.”

Miszalski, 44, was elected back in May to run the southern Polish city with just over 750,000 people and is scheduled to be in the Big Apple in the coming days when he will march in the 87th annual Pulaski Day Parade.

Sources said the mayors, who have both pushed their city’s nightlight scene, planned to discuss ways they could work together to help bolster their city’s economies and tourism.

They were expected to discuss strengthening ties through a sister cities agreement, sources said.

LOT — a relatively small airline with about 80 planes, roughly 50 fewer than Frontier Airlines — has been expanding in recent years and boasts of being one of three anchor carriers at JFK International Airport.

It was unclear what was on the agenda for reps from the airline in the meeting with Big Apple officials.

Krzysztof Moczulski, a spokesman for LOT Polish Airlines, said the New York City area holds “traditional importance” for the airline because it is home to one of the largest Polish populations, with many residents who originate from Krakow.

“For over 50 years, LOT has been well-established in the NYC market, serving as a vital connection for this community,” the spokesman said in a statement.

“LOT Polish Airlines has maintained relationships with representatives from Krakow and New York purely on a professional basis, without offering any upgrades or special benefits to Mayor Eric Adams, his staff, or other officials,” the statement added. “There has been no involvement in lobbying for additional flights in connection with this recent meeting.”

Calls to the Krakow mayor’s office were not returned.

The mayor pleaded not guilty to the charges on Friday and has repeatedly denied that he has done anything wrong.

Political insiders, though, have raised concerns about how the City Hall can properly function with the mayor facing a federal indictment and a number of other SDNY and Manhattan DA probes looming over top officials in the administration.

Mayor Adams brushed off concerns of leaders not wanting to meet, telling The Post in City Hall his calendar hasn’t gotten any leaner since the criminal indictment.

“People understand that I’m still the mayor and there are still things that need to be done in the city,” he told reporters during his off-topic press conference in the City Hall Rotunda.

“Trust me, the calendar is not short of people, from local to international city leaders, who wish to sit down and communicate with me for so many different reasons.”

A spokesperson from City Hall did not respond hours later when asked about the cancelled meeting with the Krakow and Polish airline officials.