A woman with multiple sclerosis wants Delta Air Lines to improve its service for disabled passengers after she claims she was tied to a wheelchair following an international flight earlier this month.

Maria Saliagas was diagnosed with the central nervous system disease five years ago, but didn’t want her deteriorating health to stop her annual trips with her husband to Europe. So prior to her April 1 flight from Atlanta to Amsterdam, her son made arrangements with Delta officials to ensure that the proper wheelchair would be waiting for her on the other side of the Atlantic, WSB-TV reports.

But the wheelchair with special straps to help her sit up straight wasn’t there, prompting Delta employees to improvise, Nathan Saliagas told the station.

“They took a dirty blanket and tied her forcefully with it, and she has bruise marks on this part of her arm, which is where it was tied,” he said, pointing to his bicep. “I want them to show initiative that they’re willing to change their disability services.”

Saliagas was offered 20,000 free SkyMiles after complaining to airline staffers, but that won’t cut it, according to her son. Instead, she wants assurances from the airline that they’ll better accommodate disabled passengers.

“I definitely know that they’re a good airline, I’m not doubting that at all, but in this specific situation, there was no courtesy, no respect,” Nathan Saliagas told WSB-TV. “There was complete operations failure.”

Officials at Delta Air Lines, meanwhile, pushed back on Saliagas’ claims, claiming an airport-contracted wheelchair vendor did meet her at the gate.

“We are disappointed that our customers didn’t have a satisfying travel experience and will ensure that their return flight exceeds expectations,” the airline said in a statement to The Post Wednesday. “While Delta always looks for ways to improve the overall customer experience, our findings do not align with details shared by the customer’s family.”

An aisle chair — which is designed for in-flight use — was used to help Saliagas off the plane. Once off the aircraft, according to Delta, several wheelchair options were offered to Saliagas and she picked one. After being seated in the wheelchair, Saliagas said she was “slipping,” prompting the wheelchair assistant to suggest using blankets as a way to secure her to the chair. Saliagas agreed and the blankets were then removed from their original packaging, according to the airline.

In an earlier statement to WSB-TV, Delta said it regretted the “perception our service” left on Saliagas.

“We have reached out to them, not only to resolve their concerns, but also to ensure that their return flight exceeds expectations,” Delta officials told the station.

Nathan Saliagas, meanwhile, criticized Delta in a Facebook post Tuesday for “physically and emotionally” abusing his mother, claiming the incident shows the airline has a long way to go when it comes to disabled passengers.

“When she started crying, she was told to ‘shut the f— up’ or she will be ‘left there,’” he wrote. “This highly inhumane and disgusting treatment by Delta Air Lines is unacceptable and a need for change.”