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ATIS Alerts Smart Flight Search

Find the flight least likely to be delayed

Beta

We 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 → OAK

Long Beach to Oakland: 1,649 nonstop flights a year

On time (12 months)

90%

Cancelled

0.4%

avg delay 5 min

Best time to leave

Before 9 AM

97% on time vs 82% 6 to 9 PM

Most reliable airline

Southwest

89% chance on time

Check LGB to OAK fares

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. #1 · Southwest 1833

    8:00 AM → 9:20 AM1h 20m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3762; its record covers all of them.

    96%

    chance on time

    On time (history)
    99%
    Cancelled
    1.1%
    Avg arrival delay
    0 min
    • Arrived on time 99% of the time (87 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 97% on time; 6 to 9 PM: 82%).

    Moderate track record · 87 flights

    Find Southwest 1833 fares Opens this date on Aviasales

  2. #2 · Southwest 3851

    11:25 AM → 12:50 PM1h 25m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    93%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    0 min
    • Arrived on time 100% 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 3851 fares Opens this date on Aviasales

  3. #3 · Southwest 4605

    5:30 PM → 6:55 PM1h 25m nonstop

    Local times, typical schedule. Last flown 2026-05-30.

    91%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    0 min
    • Arrived on time 100% 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 4605 fares Opens this date on Aviasales

  4. #4 · Southwest 3051

    11:05 AM → 12:25 PM1h 20m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    90%

    chance on time

    On time (history)
    93%
    Cancelled
    0.0%
    Avg arrival delay
    3 min
    • Arrived on time 93% of the time (54 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • Short track record (54 flights), so its score leans on the airline's record at this hour.

    Limited track record · 54 flights

    Find Southwest 3051 fares Opens this date on Aviasales

  5. #5 · Southwest 2127

    4:10 PM → 5:30 PM1h 20m nonstop

    Local times, typical schedule. Last flown 2026-05-27.

    89%

    chance on time

    On time (history)
    94%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 94% of the time (16 flights, Jun 2025 to May 2026).
    • Short track record (16 flights), so its score leans on the airline's record at this hour.

    Limited track record · 16 flights

    Find Southwest 2127 fares Opens this date on Aviasales

  6. #6 · Southwest 2404

    3:15 PM → 4:35 PM1h 20m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    88%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    7 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 2404 fares Opens this date on Aviasales

  7. #7 · Southwest 3811

    2:40 PM → 4:00 PM1h 20m nonstop

    Local times, typical schedule. Last flown 2026-05-29.

    86%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 87% of the time (23 flights, Jun 2025 to May 2026).
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find Southwest 3811 fares Opens this date on Aviasales

  8. #8 · Southwest 1494

    6:30 PM → 7:50 PM1h 20m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 2914; its record covers all of them.

    85%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 88% of the time (43 flights, Jun 2025 to May 2026).
    • Never cancelled in 43 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 82% on time; Before 9 AM: 97%).
    • Short track record (43 flights), so its score leans on the airline's record at this hour.

    Limited track record · 43 flights

    Find Southwest 1494 fares Opens this date on Aviasales

  9. #9 · Southwest 3764

    3:30 PM → 4:55 PM1h 25m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    82%

    chance on time

    On time (history)
    76%
    Cancelled
    0.0%
    Avg arrival delay
    12 min
    • Arrived on time 76% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • 81% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (33 flights), so its score leans on the airline's record at this hour.

    Limited track record · 33 flights

    Find Southwest 3764 fares Opens this date on Aviasales

  10. #10 · Southwest 4626

    7:25 PM → 8:45 PM1h 20m nonstop

    Local times, typical schedule. Last flown 2026-05-27. Same departure also flew as Southwest 3567; its record covers all of them.

    80%

    chance on time

    On time (history)
    77%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 77% of the time (31 flights, Jun 2025 to May 2026).
    • Never cancelled in 31 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 82% on time; Before 9 AM: 97%).
    • Short track record (31 flights), so its score leans on the airline's record at this hour.

    Limited track record · 31 flights

    Find Southwest 4626 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines89%

    1,649 flights · 90% 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%

    374 flights · avg delay 2 min

  • 9 AM to noon92%

    342 flights · avg delay 3 min

  • Noon to 3 PM90%

    252 flights · avg delay 6 min

  • 3 to 6 PM87%

    304 flights · avg delay 7 min

  • 6 to 9 PM82%

    377 flights · avg delay 8 min

Best day: Tuesday (91%). Worst: Sunday (86%).

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