Tri Cities in April 2026

86.7%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 2026, reporting carriers scheduled 466 domestic departures from Tri Cities (PSC). 86.7% left less than 15 minutes late and 85.8% reached their destination on time; 0.0% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so PSC departures were 7.6 points above the national departure figure.

A year earlier, in April 2025, the airport had 492 departures with 92.9% leaving on time: a change of −6.2 points, with flights down 5%.

Flights arriving at PSC that month were on time 84.3% of the time (466 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 56%, national aviation system 20% and late-arriving aircraft 18%.

On time 85.8%
Arrived 15+ minutes late 14.2%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from PSC in April 2026, judged by arrival at the destination.

April 2026 against a year earlier, the airport's year and the nation

Measure	Apr 2026	Apr 2025	PSC, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	86.7%	92.9%	88.0%	79.1%
Arrived on time	85.8%	91.5%	86.7%	78.9%
Cancelled	0.0%	0.0%	0.5%	0.9%
Average departure delay (late minutes only)	14.8 min	6.5 min	12.2 min	14.5 min
Scheduled departures a day	16	16	17	19,931
Scheduled departures	466	492	6,190	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	379	81%	85.8%	1.9 min	0.0%
DL Delta Air Lines	30	6%	100.0%	-12.6 min	0.0%
UA United Airlines	30	6%	96.7%	-14.4 min	0.0%
G4 Allegiant Air	27	6%	59.3%	60.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PSC–SEA	Pasco/Kennewick/Richland to Seattle	109	86.2%	-2.1 min	0.0%
PSC–SLC	Pasco/Kennewick/Richland to Salt Lake City	90	94.4%	-7.8 min	0.0%
PSC–DEN	Pasco/Kennewick/Richland to Denver	60	83.3%	-0.1 min	0.0%
PSC–PHX	Pasco/Kennewick/Richland to Phoenix	60	95.0%	-6.1 min	0.0%
PSC–BUR	Pasco/Kennewick/Richland to Burbank	30	83.3%	-5.3 min	0.0%
PSC–LAX	Pasco/Kennewick/Richland to Los Angeles	30	80.0%	-0.8 min	0.0%
PSC–MSP	Pasco/Kennewick/Richland to Minneapolis	30	100.0%	-13.4 min	0.0%
PSC–SFO	Pasco/Kennewick/Richland to San Francisco	30	63.3%	59.7 min	0.0%
PSC–AZA	Pasco/Kennewick/Richland to Phoenix	10	80.0%	4.0 min	0.0%
PSC–SNA	Pasco/Kennewick/Richland to Santa Ana	9	44.4%	148.3 min	0.0%
PSC–LAS	Pasco/Kennewick/Richland to Las Vegas	8	50.0%	31.8 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	55.8%	33.5%	3,793
Late-arriving aircraft	18.2%	40.4%	1,237
National Aviation System	19.5%	21.0%	1,327
Extreme weather	6.5%	5.0%	445
Security	0.0%	0.1%	0

6,802 delay minutes on 66 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 2026?

86.7% of 466 scheduled domestic departures left less than 15 minutes late, and 85.8% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 92.9% of 492 departures left on time and 0.0% were cancelled, against 86.7% and 0.0% in April 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; 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.