Tri Cities in June 2025

89.8%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 June 2025, reporting carriers scheduled 581 domestic departures from Tri Cities (PSC). 89.8% left less than 15 minutes late and 90.4% reached their destination on time; 0.2% were cancelled.

Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so PSC departures were 18.4 points above the national departure figure.

A year earlier, in June 2024, the airport had 410 departures with 85.9% leaving on time: a change of +3.9 points, with flights up 42%.

Flights arriving at PSC that month were on time 79.1% of the time (580 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 69%, late-arriving aircraft 20% and national aviation system 7%.

On time 90.4%
Arrived 15+ minutes late 9.5%
Cancelled 0.2%
Diverted 0.0%

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

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

Measure	Jun 2025	Jun 2024	PSC, 12 months to Jul 2026	All reported flights, Jun 2025
Departed on time	89.8%	85.9%	88.0%	71.4%
Arrived on time	90.4%	85.1%	86.7%	70.3%
Cancelled	0.2%	0.2%	0.5%	1.6%
Average departure delay (late minutes only)	9.4 min	10.2 min	12.2 min	22.1 min
Scheduled departures a day	19	14	17	20,386
Scheduled departures	581	410	6,190	611,575

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	431	74%	91.6%	-0.6 min	0.0%
DL Delta Air Lines	60	10%	96.7%	-14.8 min	1.7%
AS Alaska Airlines	30	5%	66.7%	18.5 min	0.0%
G4 Allegiant Air	30	5%	73.3%	11.1 min	0.0%
UA United Airlines	30	5%	100.0%	-13.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PSC–SEA	Pasco/Kennewick/Richland to Seattle	192	85.9%	2.4 min	0.0%
PSC–SLC	Pasco/Kennewick/Richland to Salt Lake City	119	93.3%	0.2 min	0.8%
PSC–DEN	Pasco/Kennewick/Richland to Denver	60	93.3%	-8.9 min	0.0%
PSC–PHX	Pasco/Kennewick/Richland to Phoenix	60	90.0%	-1.2 min	0.0%
PSC–SFO	Pasco/Kennewick/Richland to San Francisco	60	95.0%	2.2 min	0.0%
PSC–LAX	Pasco/Kennewick/Richland to Los Angeles	30	100.0%	-15.0 min	0.0%
PSC–MSP	Pasco/Kennewick/Richland to Minneapolis	30	100.0%	-18.0 min	0.0%
PSC–AZA	Pasco/Kennewick/Richland to Phoenix	17	58.8%	25.3 min	0.0%
PSC–LAS	Pasco/Kennewick/Richland to Las Vegas	13	92.3%	-7.4 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), June 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2025	Minutes
Air carrier	68.6%	31.6%	3,447
Late-arriving aircraft	20.1%	40.6%	1,012
National Aviation System	6.7%	20.9%	337
Extreme weather	4.6%	6.9%	232
Security	0.0%	0.2%	0

5,028 delay minutes on 55 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 June 2025?

89.8% of 581 scheduled domestic departures left less than 15 minutes late, and 90.4% reached their destination on time. The national figures that month were 71.4% and 70.3%.

How does that compare with a year earlier?

In June 2024, 85.9% of 410 departures left on time and 0.2% were cancelled, against 89.8% and 0.2% in June 2025.

Provenance

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