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.
LGB → SMF
Long Beach to Sacramento: 1,917 nonstop flights a year
On time (12 months)
88%
Cancelled
0.4%
avg delay 7 min
Best time to leave
Before 9 AM
97% on time vs 78% 6 to 9 PM
Most reliable airline
Southwest
88% chance on time
Lowest nonstop fare seen in the next two months: $91 (Southwest 1671 on 2026-11-09). 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 2973
7:10 AM → 8:35 AM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
96%
chance on time
- On time (history)
- 98%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 98% of the time (55 flights, Jun 2025 to May 2026).
- Never cancelled in 55 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 97% on time; 6 to 9 PM: 78%).
- Short track record (55 flights), so its score leans on the airline's record at this hour.
Limited track record · 55 flights
Find Southwest 2973 fares Opens this date on Aviasales#2 · Southwest 3773
6:55 AM → 8:25 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-04-06.
95%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (33 flights, Jun 2025 to May 2026).
- Never cancelled in 33 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 97% on time; 6 to 9 PM: 78%).
- Short track record (33 flights), so its score leans on the airline's record at this hour.
Limited track record · 33 flights
Find Southwest 3773 fares Opens this date on Aviasales#3 · Southwest 2974
10:20 AM → 11:45 AM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
94%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 96% of the time (55 flights, Jun 2025 to May 2026).
- Never cancelled in 55 scheduled flights.
- Short track record (55 flights), so its score leans on the airline's record at this hour.
Limited track record · 55 flights
Find Southwest 2974 fares Opens this date on Aviasales#4 · Southwest 2161
10:35 AM → 12:05 PM1h 30m nonstop
Local times, typical schedule. Last flown 2026-04-06.
94%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 96% of the time (28 flights, Jun 2025 to May 2026).
- Short track record (28 flights), so its score leans on the airline's record at this hour.
Limited track record · 28 flights
Find Southwest 2161 fares Opens this date on Aviasales#5 · Southwest 2975
1:00 PM → 2:25 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-30.
89%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 89% of the time (47 flights, Jun 2025 to May 2026).
- Never cancelled in 47 scheduled flights.
- Short track record (47 flights), so its score leans on the airline's record at this hour.
Limited track record · 47 flights
Find Southwest 2975 fares Opens this date on Aviasales#6 · Southwest 1247
2:30 PM → 3:55 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-04-01.
87%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 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 1247 fares Opens this date on Aviasales#7 · Southwest 2196
4:40 PM → 6:15 PM1h 35m nonstop
Local times, typical schedule. Last flown 2026-04-06.
85%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 93% 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 2196 fares Opens this date on Aviasales#8 · Southwest 672
2:00 PM → 3:30 PM1h 30m nonstop
Local times, typical schedule. Last flown 2026-04-06.
85%
chance on time
- On time (history)
- 84%
- Cancelled
- 0.0%
- Avg arrival delay
- 18 min
- Arrived on time 84% of the time (25 flights, Jun 2025 to May 2026).
- 92% 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 672 fares Opens this date on Aviasales#9 · Southwest 1875
7:00 PM → 8:25 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3781; its record covers all of them.
82%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 85% of the time (87 flights, Jun 2025 to May 2026).
- Never cancelled in 87 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 78% on time; Before 9 AM: 97%).
Moderate track record · 87 flights
Find Southwest 1875 fares Opens this date on Aviasales#10 · Southwest 2976
4:00 PM → 5:25 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 83% of the time (46 flights, Jun 2025 to May 2026).
- Never cancelled in 46 scheduled flights.
- 84% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (46 flights), so its score leans on the airline's record at this hour.
Limited track record · 46 flights
Find Southwest 2976 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines88%
1,917 flights · 88% on time as flown · 0.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM97%
378 flights · avg delay 3 min
- 9 AM to noon95%
410 flights · avg delay 3 min
- Noon to 3 PM88%
375 flights · avg delay 8 min
- 3 to 6 PM85%
339 flights · avg delay 9 min
- 6 to 9 PM78%
415 flights · avg delay 11 min
Best day: Wednesday (93%). Worst: Friday (85%).
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