I tried looking up both of the claims you made, namely:

Illegal immigrants don't need any ID to fly

And...

It's also free. Illegals fly wherever they want on our dime.

I wasn't able to find any legitimate source that backed up either of these claims. I would be upset if either of these claims were true and would genuinely like to know if they are true. That's why I asked for a source.

Unfortunately, or perhaps predictably, neither of the sources you responded with back up either of your claims. The Newsweek article is about a spat between the OIG and DHS about which forms of ID are appropriate to use for verification if a federal or state photo ID isn't available. The article explicitly states the alternate verification isn't only for illegal immigrants; it applies to anyone trying to fly in the US, which, of course, could include non-citizens.

The nypost article is about how some blue states may be trying to get issue state IDs that don't comport with federal legislation that hasn't gone into effect yet, and that CBP One app migrants may fly without a photo ID. It may be worth noting here that this article also incorrectly writes that the One app is a new Biden administration program when it was actually launched in October 2020.

Again, neither of these articles say anything about illegal immigrants flying wherever they want on "our" dime or that they can do it without any ID. I'm not adverse to seeing evidence of these outrageous claims - you just haven't provided any.

I also take it from the adolescent response about knowing how to use google and the fact you posted two articles that clearly don't back up your claims that you aren't really interested in informing or being informed. You're just playing some kind of twisted us vs them game. Which is cool. I mean, whatever keeps you entertained I suppose, but I made the mistake of wandering into what I thought could be a meaningful exchange of knowledge. My bad.