Are you applying at a regional? If so, nobody will care. Like, not even a tiny bit. If you’re applying at a major, it still won’t be an issue.

People get hired at legacy airlines with sub 2.5 GPAs from their undergrad. Don’t let that deter you from applying to a legacy. Just be able to explain the situation and what you learned from it/what you would have done differently if given a second chance, without making excuses or blaming anything/anyone else.

It really won’t be an issue, as long as you don’t flounder if/when asked about it. Realistically, it’s an easy thing for an interviewer to pull out from your app and ask about, to see how you react under pressure. But again, as long as you can intelligently answer without making excuses, it’s a non-issue.