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.
DAL → SJC
Dallas to San Jose: 487 nonstop flights a year
On time (12 months)
70%
Cancelled
2.3%
avg delay 16 min
Best time to leave
Before 9 AM
87% on time vs 54% after 9 PM
Most reliable airline
Southwest
68% 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 2472
7:35 PM → 9:25 PM3h 50m nonstop
Local times, typical schedule. Last flown 2026-04-01.
73%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (8 flights, Jun 2025 to May 2026).
- Departs outside DAL's trouble window (10 AM to 4 PM, when 67% of its 42 ground stops and delay programs started).
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 2472 fares Opens this date on Aviasales#2 · Southwest 1924
6:20 PM → 8:05 PM3h 45m nonstop
Local times, typical schedule. Last flown 2026-05-30.
71%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
- Departs outside DAL's trouble window (10 AM to 4 PM, when 67% of its 42 ground stops and delay programs started).
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 1924 fares Opens this date on Aviasales#3 · Southwest 3782
8:30 PM → 10:25 PM3h 55m nonstop
Local times, typical schedule. Last flown 2026-04-06.
67%
chance on time
- On time (history)
- 76%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 76% of the time (25 flights, Jun 2025 to May 2026).
- Departs outside DAL's trouble window (10 AM to 4 PM, when 67% of its 42 ground stops and delay programs started).
- 60% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (25 flights), so its score leans on the airline's record at this hour.
Limited track record · 25 flights
Find Southwest 3782 fares Opens this date on Aviasales#4 · Southwest 1687
9:20 PM → 11:00 PM3h 40m nonstop
Local times, typical schedule. Last flown 2026-05-29.
54%
chance on time
- On time (history)
- 41%
- Cancelled
- 5.1%
- Avg arrival delay
- 26 min
- Arrived on time 41% of the time (37 flights, Jun 2025 to May 2026).
- Cancelled 5.1% of the time (2 of 39).
- Leaves in this route's least on-time window (After 9 PM: 54% on time; Before 9 AM: 87%).
- Departs outside DAL's trouble window (10 AM to 4 PM, when 67% of its 42 ground stops and delay programs started).
Limited track record · 37 flights
Find Southwest 1687 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines68%
487 flights · 70% on time as flown · 2.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM87%
100 flights · avg delay 7 min
- 3 to 6 PM79%
76 flights · avg delay 11 min
- 6 to 9 PM63%
212 flights · avg delay 21 min
- After 9 PM54%
76 flights · avg delay 21 min
Best day: Friday (82%). Worst: Monday (71%).
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