Tri Cities in July 2025

89.4%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 July 2025, reporting carriers scheduled 577 domestic departures from Tri Cities (PSC). 89.4% left less than 15 minutes late and 88.4% reached their destination on time; 0.2% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so PSC departures were 19.7 points above the national departure figure.

A year earlier, in July 2024, the airport had 462 departures with 84.8% leaving on time: a change of +4.6 points, with flights up 25%.

Flights arriving at PSC that month were on time 78.2% of the time (577 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 59%, late-arriving aircraft 25% and extreme weather 9%.

On time 88.4%
Arrived 15+ minutes late 10.7%
Cancelled 0.2%
Diverted 0.7%

Every scheduled departure from PSC in July 2025, judged by arrival at the destination.

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

Measure	Jul 2025	Jul 2024	PSC, 12 months to Jul 2026	All reported flights, Jul 2025
Departed on time	89.4%	84.8%	88.0%	69.7%
Arrived on time	88.4%	82.5%	86.7%	69.0%
Cancelled	0.2%	0.6%	0.5%	2.5%
Average departure delay (late minutes only)	6.4 min	15.7 min	12.2 min	24.3 min
Scheduled departures a day	19	15	17	21,048
Scheduled departures	577	462	6,190	631,428

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	429	74%	90.0%	-6.6 min	0.0%
DL Delta Air Lines	62	11%	90.3%	2.9 min	0.0%
AS Alaska Airlines	31	5%	67.7%	9.1 min	0.0%
UA United Airlines	31	5%	93.5%	-16.1 min	3.2%
G4 Allegiant Air	24	4%	75.0%	19.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PSC–SEA	Pasco/Kennewick/Richland to Seattle	185	87.0%	-3.5 min	0.0%
PSC–SLC	Pasco/Kennewick/Richland to Salt Lake City	122	91.8%	1.8 min	0.0%
PSC–DEN	Pasco/Kennewick/Richland to Denver	62	85.5%	-8.2 min	1.6%
PSC–PHX	Pasco/Kennewick/Richland to Phoenix	61	96.7%	-25.2 min	0.0%
PSC–SFO	Pasco/Kennewick/Richland to San Francisco	61	82.0%	3.2 min	0.0%
PSC–LAX	Pasco/Kennewick/Richland to Los Angeles	31	96.8%	-15.6 min	0.0%
PSC–MSP	Pasco/Kennewick/Richland to Minneapolis	31	87.1%	-3.8 min	0.0%
PSC–AZA	Pasco/Kennewick/Richland to Phoenix	14	71.4%	14.0 min	0.0%
PSC–LAS	Pasco/Kennewick/Richland to Las Vegas	10	80.0%	27.5 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), July 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2025	Minutes
Air carrier	58.6%	31.1%	1,986
Late-arriving aircraft	25.3%	40.8%	858
National Aviation System	7.1%	20.7%	240
Extreme weather	9.1%	7.3%	307
Security	0.0%	0.1%	0

3,391 delay minutes on 62 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 PSC on time in July 2025?

89.4% of 577 scheduled domestic departures left less than 15 minutes late, and 88.4% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 84.8% of 462 departures left on time and 0.6% were cancelled, against 89.4% and 0.2% in July 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for PSC · methodology · corrections.