Late-Arriving Aircraft: Why Connecting Flights Get Delayed

A late-arriving aircraft delay happens when the plane scheduled for your flight shows up late from its previous trip, pushing your departure back. It is the single biggest cause of US flight delays — about 39% of all delay minutes across 14.1 million US flights from June 2024 through May 2026, per the US DOT.

What 'late-arriving aircraft' means

Airlines fly each aircraft on several legs a day. If an early flight runs late, the same plane arrives late for its next departure — and that's logged as a late-arriving aircraft delay, even if nothing about your specific flight went wrong.

The ripple (or domino) effect

Because one plane can operate five or more flights in a day, a single morning delay cascades into every later leg. This is why on-time rates fall as the day goes on and why afternoon and evening flights are riskier.

How to avoid inheriting a delay

• Book the first flights of the morning, before the ripple starts
• Prefer nonstops so you're not depending on a second aircraft
• At big connecting hubs, leave extra time — see why hubs run late

For the full breakdown of delay categories, see why flights are delayed.

Frequently asked questions

Is late-arriving aircraft the airline's fault?

Indirectly, yes — it traces back to an earlier delay in that aircraft's day, which is often within the airline's operation. It is tracked separately so the original cause isn't double-counted.

How do I avoid a late-arriving aircraft delay?

Fly early. The first departures use planes that stayed overnight at the airport, so they can't inherit a delay from a previous flight.