Best Time to Fly SEA to PSP: On-Time Stats by Hour & Airline
Seattle/Tacoma International → Palm Springs International
Data through July 2026 · Last updated October 18, 2026
1,653 flights were scheduled from Seattle (SEA) to Palm Springs (PSP) in the last 12 months, and 83.3% of those that flew arrived on time, 5.7 points above the US average of 77.6%.
Among 3 airlines, Alaska Airlines led with 83.6% on time and SkyWest Airlines was last with 82.7%.
Over 24 months, Tuesday was the most reliable day (87% on time) and August the worst month (76%).
The cancellation rate was 1.0% (US average 1.8%).
SEA to PSP on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Alaska Airlines | 83.6% | 47 min | 0.7% | 1,057 |
| Delta Air Lines | 82.9% | 52 min | 2.2% | 179 |
| SkyWest Airlines | 82.7% | 52 min | 1.2% | 417 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SEA to PSP
On-time arrival % by scheduled departure hour (local time), 3,254 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 92.4% | 0.4% | 277 |
| 8am–9am | 88.6% | 0.0% | 184 |
| 9am–10am | 86.0% | 2.0% | 51 |
| 10am–11am | 81.0% | 0.7% | 542 |
| 11am–12pm | 84.0% | 0.7% | 568 |
| 12pm–1pm | Limited data | 23 | |
| 1pm–2pm | 80.3% | 0.7% | 139 |
| 2pm–3pm | 87.5% | 0.0% | 96 |
| 3pm–4pm | 79.0% | 0.6% | 312 |
| 4pm–5pm | 88.7% | 0.0% | 62 |
| 5pm–6pm | 81.4% | 0.6% | 162 |
| 6pm–7pm | 84.7% | 0.0% | 223 |
| 7pm–8pm | 76.3% | 0.9% | 316 |
| 8pm–9pm | 85.7% | 1.0% | 298 |
| 9pm–10pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SEA to PSP
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 88.5% | +4.1 pts | 0.0% | 78 |
| Christmas & New Year (Dec 20 - Jan 3) | 76.6% | -7.7 pts | 1.8% | 163 |
| Summer peak (Jun 15 - Aug 15) | 76.2% | -8.1 pts | 1.6% | 248 |
| All other days | 84.3% | — | 0.5% | 2,765 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).