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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.

LAS → LGB

Las Vegas to Long Beach: 2,188 nonstop flights a year

On time (12 months)

78%

Cancelled

0.4%

avg delay 11 min

Best time to leave

Before 9 AM

92% on time vs 70% 6 to 9 PM

Most reliable airline

Southwest

78% chance on time

Check LAS 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 1006

    7:05 AM → 8:15 AM1h 10m nonstop

    Local times, typical schedule. Last flown 2026-05-29. Same departure also flew as Southwest 3716; its record covers all of them.

    94%

    chance on time

    On time (history)
    96%
    Cancelled
    0.0%
    Avg arrival delay
    3 min
    • Arrived on time 96% of the time (72 flights, Jun 2025 to May 2026).
    • Never cancelled in 72 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 70%).
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).

    Moderate track record · 72 flights

    Find Southwest 1006 fares Opens this date on Aviasales

  2. #2 · Southwest 1971

    9:20 AM → 10:30 AM1h 10m nonstop

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

    84%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 87% of the time (31 flights, Jun 2025 to May 2026).
    • Never cancelled in 31 scheduled flights.
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
    • Short track record (31 flights), so its score leans on the airline's record at this hour.

    Limited track record · 31 flights

    Find Southwest 1971 fares Opens this date on Aviasales

  3. #3 · Southwest 120

    9:35 AM → 10:50 AM1h 15m nonstop

    Local times, typical schedule. Last flown 2026-04-05.

    80%

    chance on time

    On time (history)
    80%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 80% of the time (10 flights, Jun 2025 to May 2026).
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
    • Short track record (10 flights), so its score leans on the airline's record at this hour.

    Limited track record · 10 flights

    Find Southwest 120 fares Opens this date on Aviasales

  4. #4 · Southwest 1211

    10:15 AM → 11:30 AM1h 15m nonstop

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

    80%

    chance on time

    On time (history)
    93%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 93% of the time (15 flights, Jun 2025 to May 2026).
    • Departs inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
    • Short track record (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find Southwest 1211 fares Opens this date on Aviasales

  5. #5 · Southwest 1247

    12:35 PM → 1:55 PM1h 20m nonstop

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

    80%

    chance on time

    On time (history)
    78%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 78% of the time (23 flights, Jun 2025 to May 2026).
    • Departs inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
    • 58% 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 1247 fares Opens this date on Aviasales

  6. #6 · Southwest 3567

    5:40 PM → 6:55 PM1h 15m nonstop

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

    79%

    chance on time

    On time (history)
    86%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 86% of the time (28 flights, Jun 2025 to May 2026).
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
    • Short track record (28 flights), so its score leans on the airline's record at this hour.

    Limited track record · 28 flights

    Find Southwest 3567 fares Opens this date on Aviasales

  7. #7 · Southwest 2970

    3:55 PM → 5:15 PM1h 20m nonstop

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

    78%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
    • Departs inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
    • Short track record (8 flights), so its score leans on the airline's record at this hour.

    Limited track record · 8 flights

    Find Southwest 2970 fares Opens this date on Aviasales

  8. #8 · Southwest 1757

    6:50 PM → 8:05 PM1h 15m nonstop

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

    77%

    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).
    • Leaves in this route's least on-time window (6 to 9 PM: 70% on time; Before 9 AM: 92%).
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 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 1757 fares Opens this date on Aviasales

  9. #9 · Southwest 4626

    6:30 PM → 7:40 PM1h 15m nonstop

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

    73%

    chance on time

    On time (history)
    70%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 70% 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 (6 to 9 PM: 70% on time; Before 9 AM: 92%).
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).

    Limited track record · 47 flights

    Find Southwest 4626 fares Opens this date on Aviasales

  10. #10 · Southwest 3620

    2:30 PM → 3:45 PM1h 15m nonstop

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

    71%

    chance on time

    On time (history)
    63%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 63% of the time (8 flights, Jun 2025 to May 2026).
    • Departs inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
    • 80% 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 3620 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines78%

    2,188 flights · 78% on time as flown · 0.4% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM92%

    501 flights · avg delay 6 min

  • 9 AM to noon79%

    353 flights · avg delay 10 min

  • Noon to 3 PM76%

    444 flights · avg delay 12 min

  • 3 to 6 PM73%

    383 flights · avg delay 15 min

  • 6 to 9 PM70%

    507 flights · avg delay 13 min

Best day: Saturday (86%). Worst: Monday (75%).

Smarter routing

Nearby airports that run more on time

  • LAS → SNA 82% chance on time

    Harry Reid International Airport to John Wayne Orange County International Airport · 4,387 flights a year · 19 mi from your airports · yours: 78%

    Rank flightsFares

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