Seattle (SEA) to Palm Springs (PSP): On-Time Performance
Data through July 2026
The calendar drives reliability on SEA–PSP. April 2026 flights landed on schedule 91% of the time, but August 2024 dropped to 63% — a gap of 28 points. Across the full period the route averages 83% on-time against a national 78%.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 4.5
- last 12 months
- Duration
- 2h 49m
- scheduled
- Distance
- 987 mi
Best airline from SEA to PSP
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 87% | 9 min | 1.1% | 356 |
| Alaska Airlines | 83% | 9 min | 0.5% | 2,100 |
| SkyWest Airlines | 82% | 11 min | 0.7% | 859 |
Monthly on-time trend
Best time to fly from SEA to PSP
Aim for departures around 7 a.m. (92% on-time); avoid 7 p.m. departures (77%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 85% | 8 min |
| Tuesdaybest | 88% | 6 min |
| Wednesday | 84% | 8 min |
| Thursday | 85% | 9 min |
| Friday | 79% | 12 min |
| Saturday | 82% | 9 min |
| Sunday | 80% | 12 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft40%
- Airline operations36%
- National airspace system21%
- Weather3%
Frequently asked questions
- How often are flights from SEA to PSP delayed?
- 17% of SEA–PSP flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 9 minutes.
- Which airline is most reliable from SEA to PSP?
- Delta Air Lines has the best on-time record on this route at 87%, based on 356 flights. 3 airlines flew SEA–PSP frequently enough to compare in this period.
- What is the best time of day to fly from SEA to PSP?
- Departures around 7 a.m. have the best record (92% on-time), while departures around 7 p.m. have the worst (77%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SEA to PSP?
- The scheduled SEA–PSP flight time averages 2h 49m over 987 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are SEA to PSP flights cancelled?
- 0.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from SEA to PSP?
- August 2024 was the roughest month in this dataset, with only 63% of arrivals on time. The best was April 2026 at 91%. If your dates are flexible, that 28-point gap is worth planning around.
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Based on 3,315 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.