Route on-time record
PSP to LAS: most on-time flights and the best time to fly
Palm Springs (Palm Springs International Airport) to Las Vegas (Harry Reid International Airport). 735 nonstop flights in Jun 2025 to May 2026, 80% arrived within 15 minutes and 0.5% were cancelled. The most reliable flight number was Southwest 3957 at 5:30 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
PSP → LAS
Palm Springs to Las Vegas: 735 nonstop flights a year
On time (12 months)
80%
Cancelled
0.5%
avg delay 13 min
Best time to leave
Before 9 AM
93% on time vs 62% 3 to 6 PM
Most reliable airline
Southwest
80% chance on time
Lowest nonstop fare seen in the next two months: $292 (Southwest 1929 on 2026-10-26). 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 · Southwest 3957
5:30 AM → 6:35 AM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 2907; its record covers all of them.
90%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.1%
- Avg arrival delay
- 8 min
- Arrived on time 89% of the time (87 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 62%).
Moderate track record · 87 flights
Find Southwest 3957 fares Opens this date on Aviasales#2 · Southwest 3532
3:45 PM → 4:45 PM1h 00m nonstop
Local times, typical schedule. Last flown 2026-04-06.
74%
chance on time
- On time (history)
- 53%
- Cancelled
- 0.0%
- Avg arrival delay
- 20 min
- Arrived on time 53% of the time (15 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 62% on time; Before 9 AM: 93%).
- 56% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (15 flights), so its score leans on the airline's record at this hour.
Limited track record · 15 flights
Find Southwest 3532 fares Opens this date on Aviasales#3 · Southwest 2449
10:30 AM → 11:35 AM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-29. Same departure also flew as Southwest 1103; its record covers all of them.
70%
chance on time
- On time (history)
- 61%
- Cancelled
- 0.0%
- Avg arrival delay
- 20 min
- Arrived on time 61% of the time (38 flights, Jun 2025 to May 2026).
- Never cancelled in 38 scheduled flights.
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- Short track record (38 flights), so its score leans on the airline's record at this hour.
Limited track record · 38 flights
Find Southwest 2449 fares Opens this date on Aviasales#4 · Southwest 3958
2:35 PM → 3:40 PM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 1947; its record covers all of them.
67%
chance on time
- On time (history)
- 55%
- Cancelled
- 0.0%
- Avg arrival delay
- 26 min
- Arrived on time 55% of the time (62 flights, Jun 2025 to May 2026).
- Never cancelled in 62 scheduled flights.
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- 60% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 62 flights
Find Southwest 3958 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines80%
735 flights · 80% on time as flown · 0.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM93%
354 flights · avg delay 6 min
- 9 AM to noon73%
118 flights · avg delay 15 min
- Noon to 3 PM71%
95 flights · avg delay 19 min
- 3 to 6 PM62%
142 flights · avg delay 22 min
Best day: Saturday (86%). Worst: Friday (72%).
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 aircraft48%
- Airline (crew, maintenance, boarding)30%
- Air traffic control and airport volume22%
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 LAS questions
- What time of day is best to fly PSP to LAS?
- Before 9 AM: 93% of flights arrived on time, against 62% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from PSP to LAS?
- Southwest, with a season-adjusted 80% chance of operating and arriving on time over 735 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 LAS?
- June (68% on time); the best was October (88%), 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
- LAS to PSP (return)
- PSP to SFO 68%
- PSP to DEN 81%
- PSP to SEA 87%
- PSP to PHX 79%
- PSP to SLC 93%
- PSP to DFW 79%
- PSP to ORD 75%
- PSP to PDX 95%
- PSP to SMF 85%
- PSP to OAK 86%
- PSP to LAX 85%
- PSP to MSP 81%
Live status: FAA delays and ground stops