Tri Cities in April 2025

92.9%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 April 2025, reporting carriers scheduled 492 domestic departures from Tri Cities (PSC). 92.9% left less than 15 minutes late and 91.5% reached their destination on time; 0.0% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so PSC departures were 12.3 points above the national departure figure.

A year earlier, in April 2024, the airport had 401 departures with 89.3% leaving on time: a change of +3.6 points, with flights up 23%.

Flights arriving at PSC that month were on time 84.2% of the time (493 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 72%, national aviation system 13% and extreme weather 8%.

On time 91.5%
Arrived 15+ minutes late 8.5%
Cancelled 0.0%
Diverted 0.0%

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

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

Measure	Apr 2025	Apr 2024	PSC, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	92.9%	89.3%	88.0%	80.6%
Arrived on time	91.5%	90.0%	86.7%	79.5%
Cancelled	0.0%	0.0%	0.5%	0.8%
Average departure delay (late minutes only)	6.5 min	5.2 min	12.2 min	14.1 min
Scheduled departures a day	16	13	17	19,465
Scheduled departures	492	401	6,190	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	385	78%	91.2%	-3.8 min	0.0%
AS Alaska Airlines	30	6%	86.7%	0.6 min	0.0%
DL Delta Air Lines	30	6%	100.0%	-6.6 min	0.0%
UA United Airlines	30	6%	93.3%	-7.3 min	0.0%
G4 Allegiant Air	17	3%	88.2%	-0.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PSC–SEA	Pasco/Kennewick/Richland to Seattle	146	91.8%	-6.4 min	0.0%
PSC–SLC	Pasco/Kennewick/Richland to Salt Lake City	90	93.3%	-6.7 min	0.0%
PSC–DEN	Pasco/Kennewick/Richland to Denver	60	90.0%	-4.4 min	0.0%
PSC–PHX	Pasco/Kennewick/Richland to Phoenix	60	96.7%	-4.3 min	0.0%
PSC–SFO	Pasco/Kennewick/Richland to San Francisco	59	79.7%	6.4 min	0.0%
PSC–LAX	Pasco/Kennewick/Richland to Los Angeles	30	96.7%	-2.0 min	0.0%
PSC–MSP	Pasco/Kennewick/Richland to Minneapolis	30	96.7%	-3.7 min	0.0%
PSC–AZA	Pasco/Kennewick/Richland to Phoenix	9	100.0%	-6.9 min	0.0%
PSC–LAS	Pasco/Kennewick/Richland to Las Vegas	8	75.0%	6.3 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), April 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	72.3%	32.7%	2,009
Late-arriving aircraft	7.0%	39.4%	195
National Aviation System	12.6%	22.2%	349
Extreme weather	8.1%	5.5%	226
Security	0.0%	0.2%	0

2,779 delay minutes on 42 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 April 2025?

92.9% of 492 scheduled domestic departures left less than 15 minutes late, and 91.5% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 89.3% of 401 departures left on time and 0.0% were cancelled, against 92.9% and 0.0% in April 2025.

Provenance

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