Spokane International in September 2023

89.5%departed 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, reporting carriers scheduled 1,567 domestic departures from Spokane International (GEG). 89.5% left less than 15 minutes late and 89.6% reached their destination on time; 0.1% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.1% arrived on time, so GEG departures were 9.0 points above the national departure figure.

Flights arriving at GEG that month were on time 82.5% of the time (1,569 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 49%, late-arriving aircraft 39% and national aviation system 9%.

On time 89.6%
Arrived 15+ minutes late 10.3%
Cancelled 0.1%
Diverted 0.0%

Every scheduled departure from GEG in September 2023, judged by arrival at the destination.

September 2023 against a year earlier, the airport's year and the nation

Measure	Sep 2023	Year earlier	GEG, 12 months to Jul 2026	All reported flights, Sep 2023
Departed on time	89.5%	—	83.6%	80.5%
Arrived on time	89.6%	—	83.8%	80.1%
Cancelled	0.1%	—	0.7%	1.2%
Average departure delay (late minutes only)	8.1 min	—	11.8 min	14.1 min
Scheduled departures a day	52	—	51	18,978
Scheduled departures	1,567	—	18,474	569,338

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	559	36%	91.1%	-2.4 min	0.0%
WN Southwest Airlines	306	20%	85.0%	2.1 min	0.0%
DL Delta Air Lines	277	18%	91.7%	-5.8 min	0.4%
AS Alaska Airlines	257	16%	92.2%	-3.7 min	0.0%
AA American Airlines	90	6%	82.2%	13.1 min	0.0%
UA United Airlines	68	4%	88.2%	24.6 min	0.0%
G4 Allegiant Air	10	1%	100.0%	-0.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GEG–SEA	Spokane to Seattle	578	91.2%	-2.6 min	0.2%
GEG–DEN	Spokane to Denver	180	83.9%	11.5 min	0.0%
GEG–SLC	Spokane to Salt Lake City	140	94.3%	-9.9 min	0.0%
GEG–BOI	Spokane to Boise	74	94.6%	-2.4 min	0.0%
GEG–PHX	Spokane to Phoenix	67	82.1%	10.6 min	0.0%
GEG–MSP	Spokane to Minneapolis	62	85.5%	0.6 min	0.0%
GEG–DFW	Spokane to Dallas/Fort Worth	60	80.0%	16.8 min	0.0%
GEG–LAX	Spokane to Los Angeles	60	96.7%	-4.8 min	0.0%
GEG–SFO	Spokane to San Francisco	60	91.7%	-3.8 min	0.0%
GEG–OAK	Spokane to Oakland	52	90.4%	-4.2 min	0.0%
GEG–SMF	Spokane to Sacramento	45	82.2%	-0.9 min	0.0%
GEG–ATL	Spokane to Atlanta	41	95.1%	-12.1 min	0.0%

By scheduled departure hour

100

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

Share of departures that left less than 15 minutes late, by scheduled hour (local time), September 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2023	Minutes
Air carrier	49.2%	36.4%	5,587
Late-arriving aircraft	38.5%	38.3%	4,371
National Aviation System	9.4%	19.9%	1,063
Extreme weather	3.0%	5.1%	345
Security	0.0%	0.2%	0

11,366 delay minutes on 162 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

How many flights left GEG on time in September 2023?

89.5% of 1,567 scheduled domestic departures left less than 15 minutes late, and 89.6% reached their destination on time. The national figures that month were 80.5% and 80.1%.

How does that compare with a year earlier?

September 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

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