Palm Springs (PSP) to Seattle (SEA): On-Time Performance
Data through July 2026
When you fly PSP to SEA matters as much as anything else about the booking: the route swung from 94% on-time in September 2025 to just 72% in August 2024. Across the full period the route averages 85% on-time against a national 78%.
- On-time
- 85%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 4.5
- last 12 months
- Duration
- 2h 58m
- scheduled
- Distance
- 987 mi
Best airline from PSP to SEA
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 89% | 10 min | 1.1% | 356 |
| SkyWest Airlines | 86% | 9 min | 0.5% | 857 |
| Alaska Airlines | 85% | 9 min | 0.9% | 2,098 |
Monthly on-time trend
Best time to fly from PSP to SEA
Aim for departures around 12 p.m. (93% on-time); avoid 7 p.m. departures (77%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 86% | 8 min |
| Tuesdaybest | 90% | 6 min |
| Wednesday | 86% | 8 min |
| Thursday | 86% | 7 min |
| Friday | 82% | 11 min |
| Saturday | 83% | 13 min |
| Sunday | 84% | 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 aircraft43%
- Airline operations32%
- National airspace system22%
- Weather2%
Frequently asked questions
- How often are flights from PSP to SEA delayed?
- 15% of PSP–SEA 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 PSP to SEA?
- Delta Air Lines has the best on-time record on this route at 89%, based on 356 flights. 3 airlines flew PSP–SEA frequently enough to compare in this period.
- What is the best time of day to fly from PSP to SEA?
- Departures around 12 p.m. have the best record (93% 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 PSP to SEA?
- The scheduled PSP–SEA flight time averages 2h 58m over 987 miles. Actual arrival times vary — flights on this route land 15+ minutes late 15% of the time.
- How often are PSP to SEA flights cancelled?
- 0.8% 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 PSP to SEA?
- August 2024 was the roughest month in this dataset, with only 72% of arrivals on time. The best was September 2025 at 94%. If your dates are flexible, that 22-point gap is worth planning around.
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Based on 3,311 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.