The airline is offering the free flights to family members of the shooting victims so they can travel to Fort Lauderdale, near where the Wednesday shooting happened.
JetBlue will also provide access to free ground transportation with the ridesharing company Lyft.
In a company blog post, JetBlue wrote, "Our hearts go out to the victims and their loved ones."
Nineteen-year-old Nikolas Cruz is facing 17 counts of murder in the shooting at Marjory Stoneman Douglas High School in Parkland, Florida.
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