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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.

OAK → LGB

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

On time (12 months)

87%

Cancelled

0.3%

avg delay 7 min

Best time to leave

Before 9 AM

96% on time vs 77% 3 to 6 PM

Most reliable airline

Southwest

86% chance on time

Check OAK to LGB 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 1536

    6:30 AM → 7:55 AM1h 25m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 399; its record covers all of them.

    95%

    chance on time

    On time (history)
    97%
    Cancelled
    1.6%
    Avg arrival delay
    1 min
    • Arrived on time 97% of the time (63 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 96% on time; 3 to 6 PM: 77%).

    Moderate track record · 63 flights

    Find Southwest 1536 fares Opens this date on Aviasales

  2. #2 · Southwest 835

    6:50 AM → 8:10 AM1h 20m nonstop

    Local times, typical schedule. Last flown 2026-04-01.

    94%

    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).
    • Leaves in this route's most on-time window (Before 9 AM: 96% on time; 3 to 6 PM: 77%).
    • Short track record (8 flights), so its score leans on the airline's record at this hour.

    Limited track record · 8 flights

    Find Southwest 835 fares Opens this date on Aviasales

  3. #3 · Southwest 839

    7:25 AM → 8:50 AM1h 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
    1 min
    • Arrived on time 100% of the time (15 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 96% on time; 3 to 6 PM: 77%).
    • Short track record (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find Southwest 839 fares Opens this date on Aviasales

  4. #4 · Southwest 2788

    7:30 PM → 8:55 PM1h 25m nonstop

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

    92%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    0 min
    • Arrived on time 100% of the time (24 flights, Jun 2025 to May 2026).
    • Short track record (24 flights), so its score leans on the airline's record at this hour.

    Limited track record · 24 flights

    Find Southwest 2788 fares Opens this date on Aviasales

  5. #5 · Southwest 2389

    10:35 AM → 12:00 PM1h 25m nonstop

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

    88%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 88% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • Short track record (33 flights), so its score leans on the airline's record at this hour.

    Limited track record · 33 flights

    Find Southwest 2389 fares Opens this date on Aviasales

  6. #6 · Southwest 1966

    10:45 AM → 12:05 PM1h 20m nonstop

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

    88%

    chance on time

    On time (history)
    89%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 89% of the time (35 flights, Jun 2025 to May 2026).
    • Never cancelled in 35 scheduled flights.
    • Short track record (35 flights), so its score leans on the airline's record at this hour.

    Limited track record · 35 flights

    Find Southwest 1966 fares Opens this date on Aviasales

  7. #7 · Southwest 1729

    3:15 PM → 4:40 PM1h 25m nonstop

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

    88%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 87% of the time (23 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 77% on time; Before 9 AM: 96%).
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find Southwest 1729 fares Opens this date on Aviasales

  8. #8 · Southwest 3546

    11:15 AM → 12:40 PM1h 25m nonstop

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

    86%

    chance on time

    On time (history)
    90%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 90% of the time (39 flights, Jun 2025 to May 2026).
    • Never cancelled in 39 scheduled flights.
    • Short track record (39 flights), so its score leans on the airline's record at this hour.

    Limited track record · 39 flights

    Find Southwest 3546 fares Opens this date on Aviasales

  9. #9 · Southwest 1149

    3:30 PM → 4:55 PM1h 25m nonstop

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

    86%

    chance on time

    On time (history)
    85%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 85% of the time (47 flights, Jun 2025 to May 2026).
    • Never cancelled in 47 scheduled flights.
    • Leaves in this route's least on-time window (3 to 6 PM: 77% on time; Before 9 AM: 96%).
    • Short track record (47 flights), so its score leans on the airline's record at this hour.

    Limited track record · 47 flights

    Find Southwest 1149 fares Opens this date on Aviasales

  10. #10 · Southwest 4412

    7:40 PM → 9:05 PM1h 25m nonstop

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

    81%

    chance on time

    On time (history)
    50%
    Cancelled
    0.0%
    Avg arrival delay
    17 min
    • Arrived on time 50% of the time (8 flights, Jun 2025 to May 2026).
    • 62% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (8 flights), so its score leans on the airline's record at this hour.

    Limited track record · 8 flights

    Find Southwest 4412 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines86%

    1,649 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%

    378 flights · avg delay 3 min

  • 9 AM to noon89%

    341 flights · avg delay 7 min

  • Noon to 3 PM85%

    274 flights · avg delay 8 min

  • 3 to 6 PM77%

    346 flights · avg delay 12 min

  • 6 to 9 PM84%

    310 flights · avg delay 7 min

Best day: Tuesday (92%). Worst: Friday (84%).

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