They made a similar offer to families of the Pulse Nightclub shootings last year, too. 

Allegiant Airlines, who are headquartered out of Las Vegas, have offered to fly families of victims of Sunday's mass shooting to or from the city for free.

Families need to send an email to to make arrangements. The airline is also allowing travelers who were scheduled to fly to Vegas this week to change their plans without financial penalties.

They also book a lot of air-and-hotel packages, and are offering to change their customers' hotels if they're uncomfortable staying at Mandalay Bay.

Nothing good about what happened in Vegas, but these businesses could've taken this opportunity to make money off of people, some who are grieving. And they didn't. It's a nice change.

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