Transcript for Travel companies aim to stop dangerous passengers from going to Washington, DC
travel companies doing their part to keep armed and potentially dangerous people out of our nation's capital for the inauguration. Gio Benitez has more. We've never seen anything like this. Reporter: Yeah, Cecilia, good morning. Yeah, major U.S. Airlines are taking unprecedented steps here to prevent travelers from taking guns to D.C. Take a look at the list. United, American, delta, Alaska and frontier airlines, they all tell us they have banned firearms from checked luggages on flights to and from D.C. On and around inauguration day and American will stop serving alcohol on D.C. Flights. We have seen lots of videos all over social media of unruly passengers traveling to and from D.C. Refusing to wear masks or causing disruptions, well, the airlines have banned many of them but the FAA is taking it further with a zero tolerance policy saying they may face fines up to $35,000 and even some prison time. U.S. Airlines have banned more than 3,000 passengers. 3,000. Also, seeing some movement from online lodging companies like airbnb taking action. Reporter: Yeah, that's right. So airbnb and hotel tonight both tell us they are blocking or canceling reservations in the D.C. Metro air during the week of inauguration, Cecilia.
This transcript has been automatically generated and may not be 100% accurate.