YYZ Airport Delays

Date:   January 28, 2007 Airport:   (YYZ) Pearson International Airport City:   Toronto ON, CA

The airport does not currently have any active FAA issued delays. However, the airport did experience delays on this date. There were also delays from other airports that were affecting flights departing from this airport.

Information about Canadian airport delays is not as complete as for airports within the United States.

See the bottom for explanation of delays
Click to expand section for related delays
Click to view flights potentially affected by delays

	Airport	Reason	Avg	Max	Arriving	Status
		YYZ	WEATHER / SNOW	18.0	254	Jan 28 6:30 PM to Jan 28 9:59 PM	Completed
	YYZ	WEATHER / SNOW/SNOW REMOVAL	21.0	80	Jan 28 6:00 PM to Jan 28 9:59 PM	Invalidated

	Airport	Reason	Avg	Max	Departing (departure airport time)	Status
		SLC	WEATHER / FOG	64.0	111.0	Jan 28 10:55 AM to Jan 28 12:15 PM	Cancelled
	SLC	WEATHER / FOG	39.0	56.0	Jan 28 10:29 AM to Jan 28 11:30 AM	Invalidated
	CLE	WEATHER / LOW Ceilings/SNOW REMOVAL.	34.0	58.0	Jan 28 2:25 PM to Jan 28 3:30 PM	Cancelled

	Airport	Reason	Avg	Max	Arriving (arrival airport time)	Status
		PHL	WEATHER / LOW Ceilings/Visibility	82.0	340	Jan 28 7:24 PM to Jan 28 10:59 PM	Cancelled
	PHL	WEATHER / LOW Ceilings/Visibility	54.0	1392	Jan 28 7:00 PM to Jan 28 10:59 PM	Invalidated
	PHL	WEATHER / LOW Ceilings / Visibility	66.0	136	Jan 28 3:44 PM to Jan 28 10:59 PM	Invalidated
		ORD	WEATHER / WINDS	91.0	1371	Jan 28 5:45 PM to Jan 28 9:59 PM	Cancelled
	ORD	WEATHER / WIND	108.0	1371	Jan 28 3:29 PM to Jan 28 9:59 PM	Invalidated
	ORD	WEATHER / WIND	99.0	507	Jan 28 3:34 PM to Jan 28 9:59 PM	Invalidated
	ORD	WEATHER / WIND	66.0	163	Jan 28 11:45 AM to Jan 28 9:59 PM	Invalidated
	ORD	WEATHER / WIND/WET RUNWAYS	41.0	111	Jan 28 12:30 PM to Jan 28 9:59 PM	Invalidated

Affected Flights FlightStats attempts to match up the airport delay with the flights that may be or have been affected by the delay. To see what flights may be or have been affected by the delay click on the graphic in the flights column. Results are more reliable once the delay has ended. Active delays or ones that have no expected end time may display flights that, in the end, were not affected by the delay.

Status Delays that are currently in effect have a status of 'Active'. Delays that have ended have a status of 'Cancelled'. Delays that are re-issued with new information have a status of 'Invalidated' and are grouped together with the re-issued delay. These groupings are represented by the graphic and can be seen by clicking that graphic.

Delays Airports experience general arrival and departure delays for a number of reasons, weather and congestion being the most common. These delays are usually temporary in nature. If arrival delays becomes worse, air traffic control may issue a ground stop or ground delay program.

If present, the 'Delays' section shows information about these general arrival and departure delays. The information shows the min and max times that flights are being delayed and a general trend indicating that the times are increasing or decreasing.

Ground Stops Ground Stops are implemented by air traffic control when the amount of arrival traffic is projected or has exceeded the capabilities of the airport for a short period of time. The delays are issued for a period of time and affect flights destined for the airport but that have not yet departed. Flights are held at the departing airport until the end of the ground stop. Ground stops may or may not affect different regions of the country. For example, ground stops issued in SFO may affect other airports on the west coast but are less likely to affect airports on the east coast. This is because flights departing from longer distances will arrive at times later in the day when the airport is projected to be able to handle more arrivals. If the projected time period of capacity problems is expected to be longer, air traffic control may issue a more sophisticated ground delay program for the airport.

If present, the 'Ground Stop Programs' section shows information about ground stops. The begin and end times (in UTC/GMT time) are shown as well as the average and max times that flights departing for the airport may be delayed.

Ground Delay Program Ground Delay Programs are implemented by air traffic control when the amount of arrival traffic is projected or has exceeded the capabilities of the airport for a long period of time. These are usually a result of adverse weather conditions. The delays are issued for a period of time and affect flights destined for the airport but that have not yet departed. Flights are issued an Expected Departure Clearance Time (EDCT) at their point of departure and they are permitted to depart until that time. The ECDTs are calculated in such a way as to control the rate that traffic arriving at the affected airport so that demand does not exceed the arrival capacity of the airport. Much like ground stops, ground Delay Programs may or may not affect different regions of the country.

If present, the 'Ground Delay Program' section shows information about ground delays. The begin and end times (in local airport time) are shown as well as the average and max times that flights departing for the airport may be delayed.

Closure While rare, airports are closed for a variety of reasons including seriously bad weather, aircraft accidents, etc... The airport issues a closure time and an estimate on when it will re-open.

If present, the 'Closure' section shows information about airports closed. The begin and end times (in local airport time) are shown as well as the estimated re-opening time.

Deicing Deicing involves spraying various chemicals on the airplane to keep the plane safe for travel in cold weather. FAA regulations require the deicing process to be completed no more than five minutes before takeoff. Deicing also takes place with all passengers on board and usually, but no always, means the flight will be late departing the runway. It also usually means that planes are at their gates for a longer than expected time, and thus may result in some congestion at busy airports with arriving flights waiting for departing flights to leave. How much a flight may or may not be delayed by deicing depends on the efficiency of the airline crews, the frequency of cold weather at the airport, etc..

If present, the 'Deicing' section shows information about deicing reported at the airport. The begin and end times (in local airport time) are shown as well as the arrival/departure acceptance rate of the airport (which may be less than their normal rates).

Ground Stops Affecting See the above explanation for ground stops.

If present, the 'Ground Stops Affecting' section shows information about any ground stops that may be affecting flights departing from this airport. The min/max times are times for the overall delay, not necessarily the min/max time for flights departing this airport. The start and end times of the delay are in the local airport time of the arrival airport.

Ground Delay Affecting See the above explanation for ground delay programs.

If present, the 'Ground Delay Affecting' section shows information about any ground delay programs that may be affecting flights departing from this airport. The min/max times are times for the overall delay, not necessarily the min/max time for flights departing this airport. The start and end times of the delay are in the local airport time of the departing airport.