It's the flight attendant's job to come around occasionally to pick up trash and other debris. Anything that falls on the floor generally stays there until the plane has landed and the clean-up crew comes on board, Whitmore says.

On a commercial flight, the primary responsibility for cleaning up after children falls on the parents or guardians. While airline cleaning crews perform a "deep clean" of the aircraft between major shifts, and flight attendants do "light tidying" (like collecting trash) during the flight, they are not expected to act as a maid service for messy passengers. If your child spills food or leaves a "potato chip massacre" on the floor, it is considered standard passenger etiquette to ask the crew for a napkin or a trash bag to clean up as much as possible yourself. Leaving a major mess behind can significantly delay the "turnaround time" for the next flight, potentially causing delays for hundreds of other travelers. In 2026, some airlines have even become more vocal about "passenger accountability" regarding large messes. A peer-to-peer "pro-tip" is to carry a few small "wet wipes" and a plastic bag in your carry-on to quickly handle small spills, ensuring the cabin stays pleasant for everyone and the crew can focus on their primary job: your safety.