The single most reliable early warning signal for a delay is the status of your inbound aircraft — the plane that will fly your route after completing its previous leg. If it's running late, your flight will almost certainly be delayed too.
Search your flight number on AlphaFlights. The live map shows the current position of the aircraft assigned to your flight, including its speed, altitude, and estimated arrival time at your departure airport.
If the inbound aircraft is more than 30 minutes behind schedule, expect a delay. If it hasn't departed yet, expect a significant delay. If it's showing a different aircraft type than scheduled, a swap has occurred — check the new aircraft's position.
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