Tri Cities in March 2026

89.0%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 March 2026, reporting carriers scheduled 507 domestic departures from Tri Cities (PSC). 89.0% left less than 15 minutes late and 89.5% reached their destination on time; 0.8% were cancelled.

Nationally that month, 72.8% of flights departed on time and 73.2% arrived on time, so PSC departures were 16.2 points above the national departure figure.

A year earlier, in March 2025, the airport had 494 departures with 91.5% leaving on time: a change of −2.5 points, with flights up 3%.

Flights arriving at PSC that month were on time 81.2% of the time (505 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 65%, late-arriving aircraft 18% and extreme weather 10%.

On time 89.5%
Arrived 15+ minutes late 9.7%
Cancelled 0.8%
Diverted 0.0%

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

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

Measure	Mar 2026	Mar 2025	PSC, 12 months to Jul 2026	All reported flights, Mar 2026
Departed on time	89.0%	91.5%	88.0%	72.8%
Arrived on time	89.5%	89.1%	86.7%	73.2%
Cancelled	0.8%	0.0%	0.5%	2.9%
Average departure delay (late minutes only)	10.6 min	7.9 min	12.2 min	20.3 min
Scheduled departures a day	17	17	17	20,403
Scheduled departures	507	494	6,190	612,102

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	398	79%	89.9%	-4.5 min	1.0%
DL Delta Air Lines	31	6%	93.5%	6.7 min	0.0%
UA United Airlines	31	6%	93.5%	-17.4 min	0.0%
G4 Allegiant Air	30	6%	76.7%	3.6 min	0.0%
AS Alaska Airlines	17	3%	88.2%	-4.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PSC–SEA	Pasco/Kennewick/Richland to Seattle	133	91.0%	-2.1 min	1.5%
PSC–SLC	Pasco/Kennewick/Richland to Salt Lake City	92	88.0%	7.4 min	0.0%
PSC–DEN	Pasco/Kennewick/Richland to Denver	62	85.5%	-10.1 min	1.6%
PSC–PHX	Pasco/Kennewick/Richland to Phoenix	62	91.9%	-14.4 min	0.0%
PSC–SFO	Pasco/Kennewick/Richland to San Francisco	35	94.3%	-18.3 min	0.0%
PSC–BUR	Pasco/Kennewick/Richland to Burbank	31	90.3%	4.2 min	0.0%
PSC–LAX	Pasco/Kennewick/Richland to Los Angeles	31	96.8%	-8.5 min	0.0%
PSC–MSP	Pasco/Kennewick/Richland to Minneapolis	31	90.3%	-9.8 min	3.2%
PSC–AZA	Pasco/Kennewick/Richland to Phoenix	12	58.3%	14.9 min	0.0%
PSC–LAS	Pasco/Kennewick/Richland to Las Vegas	9	100.0%	-11.2 min	0.0%
PSC–SNA	Pasco/Kennewick/Richland to Santa Ana	9	77.8%	3.2 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), March 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2026	Minutes
Air carrier	65.0%	33.5%	2,924
Late-arriving aircraft	18.2%	39.3%	817
National Aviation System	7.3%	21.0%	329
Extreme weather	9.5%	5.9%	426
Security	0.0%	0.2%	0

4,496 delay minutes on 49 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 March 2026?

89.0% of 507 scheduled domestic departures left less than 15 minutes late, and 89.5% reached their destination on time. The national figures that month were 72.8% and 73.2%.

How does that compare with a year earlier?

In March 2025, 91.5% of 494 departures left on time and 0.0% were cancelled, against 89.0% and 0.8% in March 2026.

Provenance

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