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 → SJC
Long Beach to San Jose: 1,222 nonstop flights a year
On time (12 months)
87%
Cancelled
0.3%
avg delay 8 min
Best time to leave
9 AM to noon
98% on time vs 76% 6 to 9 PM
Most reliable airline
Southwest
87% chance on time
Lowest nonstop fare seen in the next two months: $60 (Southwest 2611 on 2026-11-03). 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 157
7:55 AM → 9:10 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 2269; its record covers all of them.
93%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 94% of the time (87 flights, Jun 2025 to May 2026).
- Never cancelled in 87 scheduled flights.
Moderate track record · 87 flights
Find Southwest 157 fares Opens this date on Aviasales#2 · Southwest 547
12:35 PM → 1:55 PM1h 20m nonstop
Local times, typical schedule. Last flown 2026-04-06.
89%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 93% 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 547 fares Opens this date on Aviasales#3 · Southwest 2583
7:55 PM → 9:15 PM1h 20m nonstop
Local times, typical schedule. Last flown 2026-04-06.
88%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 94% of the time (51 flights, Jun 2025 to May 2026).
- Never cancelled in 51 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 76% on time; 9 AM to noon: 98%).
- Short track record (51 flights), so its score leans on the airline's record at this hour.
Limited track record · 51 flights
Find Southwest 2583 fares Opens this date on Aviasales#4 · Southwest 1390
1:00 PM → 2:15 PM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 89% 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 1390 fares Opens this date on Aviasales#5 · Southwest 2037
4:55 PM → 6:15 PM1h 20m nonstop
Local times, typical schedule. Last flown 2026-04-06.
85%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 15 min
- Arrived on time 87% of the time (23 flights, Jun 2025 to May 2026).
- 56% 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 2037 fares Opens this date on Aviasales#6 · Southwest 456
3:45 PM → 5:00 PM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.0%
- Avg arrival delay
- 13 min
- Arrived on time 83% of the time (46 flights, Jun 2025 to May 2026).
- Never cancelled in 46 scheduled flights.
- 80% 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 456 fares Opens this date on Aviasales#7 · Southwest 2970
8:20 PM → 9:35 PM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 73% of the time (55 flights, Jun 2025 to May 2026).
- Never cancelled in 55 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 76% on time; 9 AM to noon: 98%).
- 91% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 55 flights
Find Southwest 2970 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines87%
1,222 flights · 87% on time as flown · 0.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM96%
299 flights · avg delay 2 min
- 9 AM to noon98%
103 flights · avg delay 1 min
- Noon to 3 PM87%
288 flights · avg delay 8 min
- 3 to 6 PM85%
224 flights · avg delay 14 min
- 6 to 9 PM76%
308 flights · avg delay 11 min
Best day: Tuesday (91%). Worst: Sunday (84%).
Smarter routing
Nearby airports that run more on time
LAX → MRY 91% chance on time
Los Angeles International Airport to Monterey Regional Airport · 855 flights a year · 71 mi from your airports · yours: 87%
LGB → OAK 89% chance on time
Long Beach International Airport to Oakland San Francisco Bay Airport · 1,649 flights a year · 29 mi from your airports · yours: 87%
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