Airports › Washington
Airport · 12 months to July 2026
Tri Cities: delays and on-time record
Pasco/Kennewick/Richland, Washington
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. Data through July 2026; this is a monthly history, not live airport status.
Reporting carriers scheduled 6,190 domestic departures from Tri Cities (PSC), Pasco/Kennewick/Richland, in the 12 months to July 2026: about 17 a day to 12 destinations.
88.0% of those flights left the gate less than 15 minutes late, 11.9 points above the national departure figure of 76.1%. Flights arriving at PSC were on time 82.5% of the time, 6.5 points above the national arrival figure of 76.0%.
0.5% of scheduled departures were cancelled (national: 1.8%), and the average departure delay, counting early and on-time departures as zero, was 12.2 min.
SkyWest Airlines is the largest reporting carrier at PSC with 75% of departures. Among carriers with at least 120 departures, Delta Air Lines had the highest on-time arrival share for its PSC departures (92.7%) and Allegiant Air the lowest (71.9%).
On-time departures are down 0.7 points on the previous 12 months (88.7%).
Of the delay minutes that carriers assigned to a BTS cause category for flights leaving PSC, air carrier 53%, late-arriving aircraft 18% and national aviation system 15%.
- On time 86.7%
- Arrived 15+ minutes late 12.6%
- Cancelled 0.5%
- Diverted 0.2%
As origin and as destination, against the nation
| Measure | Departures from PSC | Arrivals at PSC | All reported flights | PSC departures, previous 12 months |
|---|---|---|---|---|
| Departed on time (less than 15 min late) | 88.0% | 82.6% | 76.1% | 88.7% |
| Arrived on time | 86.7% | 82.5% | 76.0% | 87.2% |
| Cancelled | 0.5% | 0.5% | 1.8% | 0.2% |
| Diverted | 0.2% | 0.2% | 0.3% | 0.2% |
| Average departure delay (late minutes only) | 12.2 min | 13.6 min | 17.4 min | 9.3 min |
| Arrival delay minutes per 100 flights | 1,229 | 1,305 | 1,684 | 982 |
| Scheduled flights | 6,190 | 6,189 | 7,043,858 | 6,141 |
12 months to July 2026. The first column follows flights that left PSC; the second follows flights that landed there. Year on year, on-time departures moved −0.7 pts.
Airlines at PSC
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| OO SkyWest Airlines | 4,664 | 75% | 87.0% | -1.5 min | 0.4% |
| DL Delta Air Lines | 592 | 10% | 92.7% | 0.9 min | 0.3% |
| UA United Airlines | 363 | 6% | 90.1% | -6.7 min | 0.8% |
| G4 Allegiant Air | 306 | 5% | 71.9% | 28.8 min | 0.3% |
| AS Alaska Airlines | 265 | 4% | 80.8% | 3.7 min | 1.5% |
Departures from PSC by reporting carrier, ordered by flights; on time means the flight reached its destination less than 15 minutes late. Green is at or above the airport's overall share of 86.7%. Carriers fly different routes at different hours, so the rows are not a like-for-like test.
Busiest routes from PSC
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| PSC–SEA | Pasco/Kennewick/Richland to Seattle | 1,727 | 87.7% | -0.6 min | 0.9% |
| PSC–SLC | Pasco/Kennewick/Richland to Salt Lake City | 1,178 | 93.5% | -5.2 min | 0.2% |
| PSC–DEN | Pasco/Kennewick/Richland to Denver | 728 | 88.3% | -5.7 min | 0.5% |
| PSC–PHX | Pasco/Kennewick/Richland to Phoenix | 693 | 88.9% | -3.4 min | 0.0% |
| PSC–SFO | Pasco/Kennewick/Richland to San Francisco | 596 | 70.6% | 13.8 min | 0.2% |
| PSC–MSP | Pasco/Kennewick/Richland to Minneapolis | 365 | 91.5% | -2.4 min | 0.3% |
| PSC–LAX | Pasco/Kennewick/Richland to Los Angeles | 359 | 87.2% | -3.9 min | 0.8% |
| PSC–BUR | Pasco/Kennewick/Richland to Burbank | 186 | 81.7% | -1.6 min | 1.6% |
| PSC–AZA | Pasco/Kennewick/Richland to Phoenix | 133 | 73.7% | 18.3 min | 0.0% |
| PSC–LAS | Pasco/Kennewick/Richland to Las Vegas | 124 | 75.0% | 35.8 min | 0.0% |
The 10 busiest of 12 routes with reported flights. Routes with at least 10 flights a month have their own page.
Month by month
By scheduled departure hour
Among hours with at least 124 departures, 5 am to 6 am had the highest on-time share (93.0% of 1,168 flights) and 7 pm to 8 pm the lowest (77.2% of 145).
Delay causes
Cancellations by reported reason (30 in the period): air carrier 33%, weather 40%, national aviation system 27%, security 0%.
Checkpoint volumes
TSA publishes daily checkpoint passenger counts for the country as a whole, not for PSC on its own. The national series through September 2026 is on the checkpoint volumes page.
Questions and answers
How often do flights leave PSC on time?
88.0% of the 6,190 scheduled domestic departures in the 12 months to July 2026 left less than 15 minutes late; the national figure was 76.1%. 0.5% were cancelled.
How often do flights arrive at PSC on time?
82.5% of 6,189 scheduled arrivals were on time by the BTS definition, against 76.0% nationally.
Which airline has the highest on-time share at PSC?
Counting departures from PSC and whether they reached their destination on time, Delta Air Lines had the highest share (92.7% of 592 flights), then United Airlines (90.1%) and SkyWest Airlines (87.0%). Carriers fly different routes at different hours, so the figures are not a like-for-like test.
What causes delays at PSC?
For departures from PSC that reached their destination 15 or more minutes late, carriers attributed the delay minutes as follows: air carrier 53%, late-arriving aircraft 18%, national aviation system 15%, extreme weather 14%, security 0%.
What time of day has the highest on-time share at PSC?
Departures scheduled from 5 am to 6 am local time left on time 93.0% of the time, the highest of any hour with enough flights to compare; 7 pm to 8 pm was lowest at 77.2%.
Is it getting better?
On-time departures for the 12 months to July 2026 were 88.0%, down 0.7 points on the previous 12 months (88.7%). The monthly chart shows each of the last 36 months, and each month has its own page.
Does this page show today's delays at PSC?
No. BTS publishes on-time records about two months after the month ends, so this page is a monthly history through July 2026. For live conditions use the FAA airport status service or your airline.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987 to present), monthly files August 2023 to July 2026; airport name from the BTS airport lookup table. US government works in the public domain. Domestic scheduled flights by reporting carriers only: international flights, charters and smaller carriers are not in the source. Totals and averages only; no individual flight or aircraft is identified. See the methodology; report processing errors through corrections.