Alaska Airlines in September 2023

82.0%arrived on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In September 2023, Alaska Airlines (AS) reported 21,426 scheduled domestic flights. 82.0% arrived on time, 0.4% were cancelled and 0.2% diverted.

All reporting carriers together recorded 80.1% on time and 1.2% cancelled that month, so the carrier was 1.9 points above the combined figure.

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 36%, air carrier 33% and national aviation system 26%.

On time 82.0%
Arrived 15+ minutes late 17.4%
Cancelled 0.4%
Diverted 0.2%

Every scheduled domestic flight reported by Alaska Airlines in September 2023.

September 2023 against a year earlier, the carrier's year and all carriers

Measure	Sep 2023	Year earlier	AS, 12 months to Jul 2026	All carriers, Sep 2023
Arrived on time	82.0%	—	78.5%	80.1%
Departed on time	83.8%	—	79.0%	80.5%
Cancelled	0.4%	—	1.2%	1.2%
Average arrival delay	1.6 min	—	2.9 min	5.4 min
Scheduled flights a day	714	—	826	18,978
Scheduled flights	21,426	—	301,435	569,338

88 airports and 329 routes had AS flights that month.

Busiest airports that month

Airport	Departures	On time	Avg arrival delay	Cancelled
SEA Seattle	7,348	79.8%	3.5 min	0.2%
ANC Anchorage	1,220	83.4%	0.3 min	0.6%
PDX Portland	1,197	84.0%	0.8 min	0.5%
SFO San Francisco	995	80.2%	3.1 min	0.4%
SAN San Diego	745	84.8%	-4.0 min	0.3%
LAX Los Angeles	723	81.3%	6.9 min	0.7%
LAS Las Vegas	430	80.7%	3.3 min	0.7%
JNU Juneau	400	88.0%	-3.3 min	0.3%
SNA Santa Ana	376	89.4%	-4.7 min	1.3%
PHX Phoenix	367	88.0%	-3.5 min	0.3%
HNL Honolulu	360	79.4%	3.9 min	1.1%
JFK New York	359	80.2%	3.9 min	1.7%
EWR Newark	327	72.2%	14.5 min	3.1%
ORD Chicago	310	73.5%	7.8 min	0.3%
SJC San Jose	310	90.0%	-5.8 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of AS flights that arrived on time, by scheduled departure hour (local time at each origin), September 2023.

Delay causes

BTS cause category	Share of delay minutes	All carriers, Sep 2023	Minutes
Air carrier	32.8%	36.4%	61,102
Late-arriving aircraft	36.4%	38.3%	67,831
National Aviation System	25.5%	19.9%	47,439
Extreme weather	4.7%	5.1%	8,823
Security	0.6%	0.2%	1,130

186,325 delay minutes on 3,738 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

What share of Alaska Airlines flights were on time in September 2023?

82.0% of 21,426 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 80.1% that month.

How does that compare with a year earlier?

September 2022 is outside the 36 months on file, or the carrier did not report that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2023; public domain. Domestic scheduled flights, totals and averages only. The site's data runs through July 2026. Full record for Alaska Airlines · methodology · corrections.