According to the Miami Herald, Ms Aldecosea is considering filing a lawsuit against the airlines over their conflicting responses which pressured her into flushing her pet. After arriving at Baltimore/Washington International Thurgood Marshall Airport on November 21, everything seemed to be going as planned until a Spirit Airlines employee approached her saying the animal was not allowed, Goodman says.
Panicked and needing to return home promptly to deal with a medical issue, Aldecosea was unable to rent a vehicle and agonised for hours.
She claims, at this point, an airline agent suggested setting Pebbles free outside, or to flush her down the toilet.
The Miami native says Pebbles was a true comfort to her at a time when she really needed support previous year during her first semester at Wilson College in Chambersburg, Penn., when a golf-ball sized growth in her neck led to a cancer scare.
Recalling the moment she killed the dwarf hamster, Belen, 21, said: 'I didn't have any other options, She was scared.
"I was emotional, I was crying. I sat there for a good 10 minutes crying in the stall", she added.
A Spirit airlines spokesperson reportedly admitted that Aldecosea was given inaccurate information about her ability to bring Pebbles on the flight.
Her attorney, Adam Goodman said this case was different than the woman who made headlines last week after a United Airlines flight refused her request to bring her emotional support peacock on a flight.
However, when she arrived in Baltimore on her way to Fort Lauderdale, she said she was told differently.
Aldecosea told the Herald she made a decision to come forward after hearing the peacock story.
The hamster was in a small cage that fit regulations for carry-on luggage but the airline said the pet could not go on with passengers or in the cargo area of the plane, the outlet reports.
Emotional support animals have become a controversial issue for United States airlines over recent years.
But Spirit doesn't let rodents on its flights, which a Spirit employee told Aldecosea before she went through security at Baltimore-Washington International Airport.
After hectic discussions, an outraged Aldecosea accepted a flight later that day to try and figure out what to do with Pebbles. So she did the unthinkable: she flushed her pet. After contacting six rental vehicle agencies and even considering taking a Greyhound bus home, which would have taken days, Belen believed flushing her pet was the most humane option.
She bought Pebbles after going through a cancer scare while studying at Wilson College in Pennsylvania - and was flying home after withdrawing from school to have surgery on the benign tumor doctors had diagnosed.
Belen insisted she considered other options like auto hire or taking a coach, but was left with little choice.