Spokane International in May 2026

86.8%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 May 2026, reporting carriers scheduled 1,542 domestic departures from Spokane International (GEG). 86.8% left less than 15 minutes late and 87.8% reached their destination on time; 0.5% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so GEG departures were 9.7 points above the national departure figure.

A year earlier, in May 2025, the airport had 1,570 departures with 86.1% leaving on time: a change of +0.7 points, with flights down 2%.

Flights arriving at GEG that month were on time 78.9% of the time (1,539 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 45%, late-arriving aircraft 32% and national aviation system 20%.

On time 87.8%
Arrived 15+ minutes late 11.4%
Cancelled 0.5%
Diverted 0.3%

Every scheduled departure from GEG in May 2026, judged by arrival at the destination.

May 2026 against a year earlier, the airport's year and the nation

Measure	May 2026	May 2025	GEG, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	86.8%	86.1%	83.6%	77.1%
Arrived on time	87.8%	82.8%	83.8%	77.6%
Cancelled	0.5%	0.1%	0.7%	0.9%
Average departure delay (late minutes only)	8.6 min	9.0 min	11.8 min	16.0 min
Scheduled departures a day	51	52	51	20,391
Scheduled departures	1,542	1,570	18,474	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	554	36%	89.0%	-2.8 min	0.4%
WN Southwest Airlines	296	19%	85.1%	-2.1 min	0.3%
AS Alaska Airlines	245	16%	89.8%	-5.1 min	1.2%
DL Delta Air Lines	218	14%	91.3%	-9.2 min	0.5%
AA American Airlines	129	8%	81.4%	5.6 min	0.8%
UA United Airlines	74	5%	93.2%	-10.4 min	0.0%
G4 Allegiant Air	18	1%	61.1%	32.6 min	0.0%
F9 Frontier Airlines	8	1%	62.5%	4.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GEG–SEA	Spokane to Seattle	415	90.8%	-4.1 min	0.7%
GEG–DEN	Spokane to Denver	173	83.2%	-2.4 min	0.0%
GEG–SLC	Spokane to Salt Lake City	149	95.3%	-14.9 min	0.0%
GEG–PHX	Spokane to Phoenix	118	87.3%	-3.1 min	0.8%
GEG–LAX	Spokane to Los Angeles	96	94.8%	-10.3 min	1.0%
GEG–SFO	Spokane to San Francisco	75	69.3%	17.5 min	1.3%
GEG–LAS	Spokane to Las Vegas	70	84.3%	3.6 min	0.0%
GEG–PDX	Spokane to Portland	69	89.9%	-2.9 min	0.0%
GEG–MSP	Spokane to Minneapolis	62	93.5%	-8.9 min	1.6%
GEG–ORD	Spokane to Chicago	62	75.8%	20.6 min	0.0%
GEG–ATL	Spokane to Atlanta	56	85.7%	-4.9 min	0.0%
GEG–SMF	Spokane to Sacramento	49	89.8%	-7.6 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), May 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	45.0%	33.0%	4,852
Late-arriving aircraft	31.7%	40.4%	3,427
National Aviation System	19.7%	20.5%	2,125
Extreme weather	3.5%	6.0%	383
Security	0.1%	0.1%	7

10,794 delay minutes on 176 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 May 2026?

86.8% of 1,542 scheduled domestic departures left less than 15 minutes late, and 87.8% reached their destination on time. The national figures that month were 77.1% and 77.6%.

How does that compare with a year earlier?

In May 2025, 86.1% of 1,570 departures left on time and 0.1% were cancelled, against 86.8% and 0.5% in May 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2026; 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.