Spokane International in May 2025

86.1%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 2025, reporting carriers scheduled 1,570 domestic departures from Spokane International (GEG). 86.1% left less than 15 minutes late and 82.8% reached their destination on time; 0.1% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so GEG departures were 9.4 points above the national departure figure.

A year earlier, in May 2024, the airport had 1,477 departures with 85.4% leaving on time: a change of +0.7 points, with flights up 6%.

Flights arriving at GEG that month were on time 78.3% of the time (1,570 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, national aviation system 29% and air carrier 28%.

On time 82.8%
Arrived 15+ minutes late 16.8%
Cancelled 0.1%
Diverted 0.3%

Every scheduled departure from GEG in May 2025, judged by arrival at the destination.

May 2025 against a year earlier, the airport's year and the nation

Measure	May 2025	May 2024	GEG, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	86.1%	85.4%	83.6%	76.7%
Arrived on time	82.8%	86.2%	83.8%	75.4%
Cancelled	0.1%	0.5%	0.7%	1.0%
Average departure delay (late minutes only)	9.0 min	10.4 min	11.8 min	17.5 min
Scheduled departures a day	52	49	51	20,188
Scheduled departures	1,570	1,477	18,474	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	580	37%	86.2%	-0.6 min	0.0%
WN Southwest Airlines	329	21%	85.7%	0.6 min	0.0%
DL Delta Air Lines	251	16%	87.3%	-0.2 min	0.4%
AS Alaska Airlines	215	14%	70.2%	9.4 min	0.0%
AA American Airlines	94	6%	84.0%	1.4 min	0.0%
UA United Airlines	72	5%	65.3%	27.8 min	1.4%
G4 Allegiant Air	24	2%	75.0%	8.6 min	0.0%
F9 Frontier Airlines	5	0%	80.0%	1.2 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GEG–SEA	Spokane to Seattle	453	79.9%	2.6 min	0.2%
GEG–DEN	Spokane to Denver	169	68.6%	18.4 min	0.6%
GEG–SLC	Spokane to Salt Lake City	150	84.7%	3.0 min	0.0%
GEG–PHX	Spokane to Phoenix	98	85.7%	-3.9 min	0.0%
GEG–LAX	Spokane to Los Angeles	90	93.3%	-6.8 min	0.0%
GEG–PDX	Spokane to Portland	77	80.5%	4.9 min	0.0%
GEG–LAS	Spokane to Las Vegas	70	90.0%	-5.3 min	0.0%
GEG–MSP	Spokane to Minneapolis	62	96.8%	-3.5 min	0.0%
GEG–SFO	Spokane to San Francisco	62	79.0%	0.0 min	0.0%
GEG–DFW	Spokane to Dallas/Fort Worth	58	81.0%	8.0 min	0.0%
GEG–SMF	Spokane to Sacramento	56	87.5%	0.6 min	0.0%
GEG–OAK	Spokane to Oakland	53	90.6%	-2.7 min	0.0%

By scheduled departure hour

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

Share of departures that left less than 15 minutes late, by scheduled hour (local time), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	28.2%	29.3%	4,182
Late-arriving aircraft	41.8%	37.8%	6,211
National Aviation System	28.6%	25.9%	4,241
Extreme weather	1.5%	6.9%	216
Security	0.0%	0.1%	0

14,850 delay minutes on 264 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 2025?

86.1% of 1,570 scheduled domestic departures left less than 15 minutes late, and 82.8% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 85.4% of 1,477 departures left on time and 0.5% were cancelled, against 86.1% and 0.1% in May 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2025; 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.