Route on-time record
PSP to SEA: most on-time flights and the best time to fly
Palm Springs (Palm Springs International Airport) to Seattle (Seattle–Tacoma International Airport). 1,651 nonstop flights in Jun 2025 to May 2026, 87% arrived within 15 minutes and 1.2% were cancelled. The most reliable flight number was Alaska 239 at 10:35 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
PSP → SEA
Palm Springs to Seattle: 1,651 nonstop flights a year
On time (12 months)
87%
Cancelled
1.2%
avg delay 10 min
Best time to leave
9 AM to noon
93% on time vs 83% 3 to 6 PM
Most reliable airline
SkyWest
86% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Alaska 239
10:35 AM → 1:35 PM3h 00m nonstop
Local times, typical schedule. Last flown 2026-04-21.
94%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (35 flights, Jun 2025 to May 2026).
- Never cancelled in 35 scheduled flights.
- Leaves in this route's most on-time window (9 AM to noon: 93% on time; 3 to 6 PM: 83%).
- Short track record (35 flights), so its score leans on the airline's record at this hour.
Limited track record · 35 flights
Find Alaska 239 fares Opens this date on Aviasales#2 · Alaska 315
11:59 AM → 2:59 PM3h 00m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 94%
- Cancelled
- 1.5%
- Avg arrival delay
- 4 min
- Arrived on time 94% of the time (203 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 93% on time; 3 to 6 PM: 83%).
Strong track record · 203 flights
Find Alaska 315 fares Opens this date on Aviasales#3 · Alaska 653
8:57 PM → 11:54 PM2h 57m nonstop
Local times, typical schedule. Last flown 2026-05-12.
91%
chance on time
- On time (history)
- 100%
- Cancelled
- 4.8%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (20 flights, Jun 2025 to May 2026).
- Short track record (20 flights), so its score leans on the airline's record at this hour.
Limited track record · 20 flights
Find Alaska 653 fares Opens this date on Aviasales#4 · Alaska 533
6:04 PM → 9:03 PM2h 59m nonstop
Local times, typical schedule. Last flown 2026-04-21.
87%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 91% of the time (35 flights, Jun 2025 to May 2026).
- Never cancelled in 35 scheduled flights.
- Lands inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
- Short track record (35 flights), so its score leans on the airline's record at this hour.
Limited track record · 35 flights
Find Alaska 533 fares Opens this date on Aviasales#5 · SkyWest 3361 · sold as United Express, Delta Connection, American Eagle or Alaska
7:29 AM → 10:38 AM3h 09m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as SkyWest 3284; its record covers all of them.
86%
chance on time
- On time (history)
- 87%
- Cancelled
- 1.2%
- Avg arrival delay
- 10 min
- Arrived on time 87% of the time (239 flights, Jun 2025 to May 2026).
Strong track record · 239 flights
Find 7:29 AM flight fares Opens this date on Aviasales#6 · Alaska 793
5:01 PM → 8:00 PM2h 59m nonstop
Local times, typical schedule. Last flown 2026-04-20.
86%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 94% of the time (16 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 83% on time; 9 AM to noon: 93%).
- Lands inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
- 85% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 16 flights
Find Alaska 793 fares Opens this date on Aviasales#7 · Alaska 183
8:29 AM → 11:30 AM3h 01m nonstop
Local times, typical schedule. Last flown 2026-03-17.
86%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 17 min
- Arrived on time 85% of the time (34 flights, Jun 2025 to May 2026).
- Never cancelled in 34 scheduled flights.
- Short track record (34 flights), so its score leans on the airline's record at this hour.
Limited track record · 34 flights
Find Alaska 183 fares Opens this date on Aviasales#8 · Delta 2585
2:47 PM → 5:45 PM2h 58m nonstop
Local times, typical schedule. Last flown 2026-05-06.
83%
chance on time
- On time (history)
- 85%
- Cancelled
- 1.6%
- Avg arrival delay
- 18 min
- Arrived on time 85% of the time (120 flights, Jun 2025 to May 2026).
- Lands inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Moderate track record · 120 flights
Find Delta 2585 fares Opens this date on Aviasales#9 · Alaska 403
1:40 PM → 4:41 PM3h 01m nonstop
Local times, typical schedule. Last flown 2026-03-17.
81%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 18 min
- Arrived on time 81% of the time (69 flights, Jun 2025 to May 2026).
- Never cancelled in 69 scheduled flights.
- Lands inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Moderate track record · 69 flights
Find Alaska 403 fares Opens this date on Aviasales#10 · Alaska 753
8:42 PM → 11:40 PM2h 57m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 81%
- Cancelled
- 1.0%
- Avg arrival delay
- 12 min
- Arrived on time 81% of the time (200 flights, Jun 2025 to May 2026).
- 71% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 200 flights
Find Alaska 753 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)86%
415 flights · 87% on time as flown · 0.9% cancel
- Alaska Airlines85%
1,057 flights · 87% on time as flown · 1.2% cancel
- Delta Air Lines85%
179 flights · 87% on time as flown · 1.8% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM87%
363 flights · avg delay 10 min
- 9 AM to noon93%
350 flights · avg delay 6 min
- Noon to 3 PM86%
344 flights · avg delay 12 min
- 3 to 6 PM83%
322 flights · avg delay 10 min
- 6 to 9 PM84%
271 flights · avg delay 10 min
Best day: Tuesday (90%). Worst: Friday (83%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft37%
- Airline (crew, maintenance, boarding)37%
- Air traffic control and airport volume23%
- Severe weather3%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
PSP to SEA questions
- What time of day is best to fly PSP to SEA?
- 9 AM to noon: 93% of flights arrived on time, against 83% for departures 3 to 6 PM.
- Which airline is most on time from PSP to SEA?
- SkyWest, with a season-adjusted 86% chance of operating and arriving on time over 415 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on PSP to SEA?
- August (78% on time); the best was April (89%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from PSP
- SEA to PSP (return)
- PSP to SFO 68%
- PSP to DEN 81%
- PSP to PHX 79%
- PSP to SLC 93%
- PSP to DFW 79%
- PSP to ORD 75%
- PSP to PDX 95%
- PSP to LAS 80%
- PSP to SMF 85%
- PSP to OAK 86%
- PSP to LAX 85%
- PSP to MSP 81%
Live status: FAA delays and ground stops