London Heathrow Airport (LHR)

To know whether your flight from LHR is cancelled or delayed today, check it with your airline or enter the flight number on FlightGuard, which scores it on the latest weather, air traffic control and strike data. 6 announced strikes touch flights from this airport; the next: Airport staff strike in Italy: affects flights to Pisa (PSA), 30 October 2026 (all day).

Enter your flight number on FlightGuard to see the delay risk for your date, with the reasons behind it. On the flights we track, 85.4% leave on time and the average departure delay is 5.7 minutes. Your airline's app or the departures screen at LHR confirm the actual departure time.

Flights leaving LHR are covered by UK261. The airline must offer a full refund or rebooking, plus meals and, if needed, a hotel while you wait. Unless the cancellation was caused by extraordinary circumstances or announced at least 14 days ahead, you can also claim £220 to £520 depending on the distance. On a package holiday, the tour operator must offer an alternative or a refund.

26 airlines operate from London Heathrow Airport (LHR), including Aegean Airlines, Aer Lingus, Air Baltic, Air Canada, Air France and others.

Departures from London Heathrow Airport (LHR) are on time 85.4% of the time, with an average departure delay of 5.7 minutes and a 1.23% cancellation rate, based on 2,775 recent flights.

London Heathrow Airport (LHR) serves 142 destinations, operated by 26 airlines.

Enter your flight number on FlightGuard to get a real-time risk analysis based on 9 factors, including weather, ATC delays, NOTAMs, strikes and airline punctuality.

The main causes of delays at London Heathrow Airport (LHR) are: atfm. Delays can be related to weather conditions, airspace capacity, strikes, or airline operational issues.

Airline punctuality varies over time. On FlightGuard you can check the specific risk score for your flight, which takes into account the airline's historical on-time performance among the 9 factors analyzed.

We recommend checking your flight risk at least 2-3 days before departure and again the day before. FlightGuard updates data every 15 minutes, so the closer you get to your flight date, the more accurate the analysis.

1.43% of the 422,444 flights at London Heathrow Airport (LHR) were cancelled in data published between January 2025 and July 2026 (source: UK Civil Aviation Authority punctuality statistics). For October the latest published rate is 0.9%.