ATIS Alerts Smart Flight Search
Find the flight least likely to be delayed
BetaWe rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.
PSP → OAK
Palm Springs to Oakland: 487 nonstop flights a year
On time (12 months)
86%
Cancelled
0.6%
avg delay 11 min
Best time to leave
Before 9 AM
98% on time vs 66% 6 to 9 PM
Most reliable airline
Southwest
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 · Southwest 1217
9:25 AM → 10:55 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-04-06.
91%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (15 flights, Jun 2025 to May 2026).
- Short track record (15 flights), so its score leans on the airline's record at this hour.
Limited track record · 15 flights
Find Southwest 1217 fares Opens this date on Aviasales#2 · Southwest 1498
7:15 AM → 8:45 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-04-05.
90%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 94% of the time (18 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 98% on time; 6 to 9 PM: 66%).
- Short track record (18 flights), so its score leans on the airline's record at this hour.
Limited track record · 18 flights
Find Southwest 1498 fares Opens this date on Aviasales#3 · Southwest 3959
9:05 AM → 10:35 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 91%
- Cancelled
- 2.2%
- Avg arrival delay
- 4 min
- Arrived on time 91% of the time (45 flights, Jun 2025 to May 2026).
- Short track record (45 flights), so its score leans on the airline's record at this hour.
Limited track record · 45 flights
Find Southwest 3959 fares Opens this date on Aviasales#4 · Southwest 1567
1:20 PM → 3:00 PM1h 40m nonstop
Local times, typical schedule. Last flown 2026-04-06.
89%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 100% of the time (13 flights, Jun 2025 to May 2026).
- Short track record (13 flights), so its score leans on the airline's record at this hour.
Limited track record · 13 flights
Find Southwest 1567 fares Opens this date on Aviasales#5 · Southwest 2449
10:55 AM → 12:25 PM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-30.
88%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 2449 fares Opens this date on Aviasales#6 · Southwest 2270
8:40 PM → 10:10 PM1h 30m nonstop
Local times, typical schedule. Last flown 2026-04-06.
86%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 88% of the time (33 flights, Jun 2025 to May 2026).
- Never cancelled in 33 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 66% on time; Before 9 AM: 98%).
- 86% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 33 flights
Find Southwest 2270 fares Opens this date on Aviasales#7 · Southwest 2715
12:50 PM → 2:20 PM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
- On time (history)
- 80%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 80% of the time (46 flights, Jun 2025 to May 2026).
- Never cancelled in 46 scheduled flights.
- Short track record (46 flights), so its score leans on the airline's record at this hour.
Limited track record · 46 flights
Find Southwest 2715 fares Opens this date on Aviasales#8 · Southwest 3559
6:50 PM → 8:15 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-29.
63%
chance on time
- On time (history)
- 30%
- Cancelled
- 0.0%
- Avg arrival delay
- 56 min
- Arrived on time 30% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 66% on time; Before 9 AM: 98%).
- 88% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 3559 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines86%
487 flights · 86% on time as flown · 0.6% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM98%
105 flights · avg delay 2 min
- 9 AM to noon93%
128 flights · avg delay 3 min
- Noon to 3 PM83%
99 flights · avg delay 13 min
- 3 to 6 PM79%
73 flights · avg delay 18 min
- 6 to 9 PM66%
69 flights · avg delay 25 min
Best day: Saturday (91%). Worst: Friday (80%).
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