WestJet Delay Rate, Cancellations & On-Time Performance WS

On-time departure and arrival rates compiled from operational records, covering every flight operated to and from Japan. Switch the period with the tabs below.

Delay rate 8.2% Delay rate is the share of flights departing more than 15 minutes after schedule (100% − on-time departure)

Cancellation: 0% / Avg delay when late: 39min

Last 28 days ・ 49 flights

DailyWeeklyMonthly

Daily · Last 30 days

Collecting data

Weekly · Last 12 weeks (from Monday)

On-time departureOn timeDelayed

50%70%90%020 92.9%58.3%100%Week of 2026-07-2012 flightsOn time 12 ・ Delayed 090.9%Week of 2026-07-2711 flights ・ Avg delay when late +166minOn time 10 ・ Delayed 1100%Week of 2026-08-0313 flightsOn time 13 ・ Delayed 058.3%Week of 2026-08-1012 flights ・ Avg delay when late +29minOn time 7 ・ Delayed 585.7%Week of 2026-08-1714 flights ・ Avg delay when late +23minOn time 12 ・ Delayed 2100%Week of 2026-08-2414 flightsOn time 14 ・ Delayed 085.7%Week of 2026-08-3114 flights ・ Avg delay when late +39minOn time 12 ・ Delayed 271.4%Week of 2026-09-0714 flights ・ Avg delay when late +55minOn time 10 ・ Delayed 4100%Week of 2026-09-1411 flightsOn time 11 ・ Delayed 084.6%Week of 2026-09-2113 flights ・ Avg delay when late +18minOn time 11 ・ Delayed 292.9%Week of 2026-09-28 (Provisional)14 flights ・ Avg delay when late +32minOn time 13 ・ Delayed 1Collecting dataWeek of 2026-10-05 (Provisional)1 flightsOn time 1 ・ Delayed 0

Jul 20Aug 10Aug 31Oct 5

Line = on-time departure rate (left axis); bars = flights operated (right axis), stacked as on-time and delayed. Hover (or tap) a point for the breakdown and the average delay of delayed flights. The green band marks 90% on-time departures and above. Dashed segments and pale bars are provisional, before the actuals are final.

Monthly · Last 12 months

On-time departureOn timeDelayed

80%90%100%0100 100%83.9%95.5%2026-0722 flights ・ Avg delay when late +166minOn time 21 ・ Delayed 187.5%2026-0856 flights ・ Avg delay when late +27minOn time 49 ・ Delayed 783.9%2026-0956 flights ・ Avg delay when late +41minOn time 47 ・ Delayed 9100%2026-10 (Provisional)9 flightsOn time 9 ・ Delayed 0

JulAugSepOct

“Provisional” values are preliminary. The last 2 days are still being corrected, so they may change slightly.

By route

Last 24 months

Most punctual

		Dep	n	Arr
Calgary→Narita YYC-NRT		88.2%	n=68	69.1%

Least punctual

		Dep	n	Arr
Narita→Calgary NRT-YYC		86.8%	n=68	73.5%

Want to check WestJet's on-time departure rate on other routes?

Pick an origin and a destination to see that route's on-time performance.

Domestic / International

	On-time departure		Avg delay when late	n
International		91.8%	+39min	n=49

Avg delay when late counts only flights that departed more than 15 minutes behind schedule

By aircraft type

	On-time departure		Avg delay when late	n
Wide-body
B787		91.8%	+39min	n=49

Avg delay when late counts only flights that departed more than 15 minutes behind schedule / Variants of the same type (B788, B789, B78X and so on) are grouped into one row.

By departure time

	On-time departure		Avg delay when late	n
12:00-15:00		95.8%	+16min	n=24
18:00-21:00		88%	+46min	n=25

Avg delay when late counts only flights that departed more than 15 minutes behind schedule

By day of week Last 24 months

Mon

Dep

82.4%n=17

Arr

52.9%n=17

Tue

Dep

78.9%n=19

Arr

68.4%n=19

Wed

Dep

85%n=20

Arr

85%n=20

Thu

Dep

90.9%n=22

Arr

59.1%n=22

Fri

Dep

86.4%n=22

Arr

72.7%n=22

Sat

Dep

100%n=20

Arr

80%n=20

Sun

Dep

87.5%n=16

Arr

81.3%n=16

See the full aircraft rotation history

Ship charts and fleet rotation show the last 3 days to everyone. Standard members (¥280/month) get the last 27 days for aircraft of Japanese airlines. The on-time data itself is free for all.

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Updated: 2026-10-06 / Last 28 days