Tri Cities in September 2024

88.4%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 September 2024, reporting carriers scheduled 424 domestic departures from Tri Cities (PSC). 88.4% left less than 15 minutes late and 87.7% reached their destination on time; 0.2% were cancelled.

Nationally that month, 84.4% of flights departed on time and 83.9% arrived on time, so PSC departures were 4.0 points above the national departure figure.

A year earlier, in September 2023, the airport had 489 departures with 90.2% leaving on time: a change of −1.8 points, with flights down 13%.

Flights arriving at PSC that month were on time 87.1% of the time (427 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 58%, extreme weather 18% and national aviation system 14%.

On time 87.7%
Arrived 15+ minutes late 11.8%
Cancelled 0.2%
Diverted 0.2%

Every scheduled departure from PSC in September 2024, judged by arrival at the destination.

September 2024 against a year earlier, the airport's year and the nation

Measure	Sep 2024	Sep 2023	PSC, 12 months to Jul 2026	All reported flights, Sep 2024
Departed on time	88.4%	90.2%	88.0%	84.4%
Arrived on time	87.7%	86.7%	86.7%	83.9%
Cancelled	0.2%	0.0%	0.5%	0.6%
Average departure delay (late minutes only)	10.2 min	4.8 min	12.2 min	10.6 min
Scheduled departures a day	14	16	17	19,421
Scheduled departures	424	489	6,190	582,622

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	316	75%	88.0%	0.7 min	0.0%
DL Delta Air Lines	60	14%	95.0%	-2.8 min	0.0%
AS Alaska Airlines	30	7%	76.7%	11.6 min	3.3%
G4 Allegiant Air	18	4%	77.8%	5.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PSC–SEA	Pasco/Kennewick/Richland to Seattle	115	85.2%	1.0 min	0.9%
PSC–SLC	Pasco/Kennewick/Richland to Salt Lake City	88	89.8%	-4.2 min	0.0%
PSC–DEN	Pasco/Kennewick/Richland to Denver	60	83.3%	4.9 min	0.0%
PSC–SFO	Pasco/Kennewick/Richland to San Francisco	57	84.2%	11.8 min	0.0%
PSC–PHX	Pasco/Kennewick/Richland to Phoenix	56	96.4%	-5.6 min	0.0%
PSC–MSP	Pasco/Kennewick/Richland to Minneapolis	30	96.7%	-0.5 min	0.0%
PSC–AZA	Pasco/Kennewick/Richland to Phoenix	9	88.9%	-7.0 min	0.0%
PSC–LAS	Pasco/Kennewick/Richland to Las Vegas	9	66.7%	17.9 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 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2024	Minutes
Air carrier	57.8%	38.6%	2,320
Late-arriving aircraft	10.8%	38.4%	435
National Aviation System	13.6%	18.2%	548
Extreme weather	17.7%	4.8%	712
Security	0.0%	0.1%	0

4,015 delay minutes on 50 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 September 2024?

88.4% of 424 scheduled domestic departures left less than 15 minutes late, and 87.7% reached their destination on time. The national figures that month were 84.4% and 83.9%.

How does that compare with a year earlier?

In September 2023, 90.2% of 489 departures left on time and 0.0% were cancelled, against 88.4% and 0.2% in September 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2024; 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.