A Chicago charter school teacher's heartwarming story of how strangers on a plane donated hundreds of dollars to her low-income students is going viral.

According to WMAQ, Kimber Bermudez, who teaches at Carlos Fuentes Elementary School, was on a Southwest Airlines flight to Florida last week when the passenger next to her sparked up a conversation about her job. After learning that Bermudez is a teacher, he asked her about the greatest challenge she faces at her school.

"I told him that working at a low-income school can be heartbreaking," Bermudez wrote in a Facebook post. "We talked about the world and how no child should ever do without. In 2018, kids should never be hungry or in need of anything."

He then asked for Bermudez's contact information, saying his company often donates to schools like hers.

But the acts of kindness didn't stop there.

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"The man behind me tapped my shoulder," Bermudez wrote. "I turned around and he apologized for listening in to my conversation, and he handed me a wad of cash. He told me to 'do something amazing' and sat back down. I was in complete awe that I had touched a stranger. I realized that there was $100 on top, and started to cry. I thanked him and told him how I would buy my students books and give back to the community. I didn't count the money from that man, but I would later find out that he gave me $500."

After the plane landed, another man who overheard the conversation gave her $20, while another handed her $10, Bermudez said.

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"I started crying on the plane," she wrote. "I told all four men that I would do something amazing for the kids. I was not telling my story to solicit money, and never intended to walk out of that flight with anything other than my carry on. I do however hope that posting this continues the chain reaction of people helping those in need, and especially the children in need."

Bermudez said her "heart is in complete shock and awe."

"This experience made me want to do more for the kids, and use my gift of speaking to help others in need," she wrote. "I want to pass this story around, and thank those strangers and their amazing hearts!"

Read more here or here.

>> See Bermudez's Facebook post here