Natasha Lyonne just proved to the world she can board a plane and make it to her destination without getting kicked off … and now she’s taking things “one flight at a time.”

We got the “Euphoria” star at LAX, and our photog asked her about an airline issue she ran into earlier this month … when she got booted from a Delta flight before takeoff.

Natasha here looks like she’s learned her lesson … because she was in good spirits and puffing on a cigarette while she waited to hop into a luxury SUV and depart the airport.

She told us was “OK” and “good” and had no issues on this latest flight, and didn’t need any help either.