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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 → SCK

Las Vegas to Stockton: 411 nonstop flights a year

On time (12 months)

83%

Cancelled

0.2%

avg delay 13 min

Best time to leave

Before 9 AM

97% on time vs 63% 6 to 9 PM

Most reliable airline

Allegiant

83% chance on time

Check LAS to SCK 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 · Allegiant 77

    2:27 PM → 3:51 PM1h 24m nonstop

    Local times, typical schedule. Last flown 2026-05-18.

    84%

    chance on time

    On time (history)
    85%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 85% of the time (26 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 (26 flights), so its score leans on the airline's record at this hour.

    Limited track record · 26 flights

    Find Allegiant 77 fares Opens this date on Aviasales

  2. #2 · Allegiant 20

    1:54 PM → 3:17 PM1h 23m nonstop

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

    81%

    chance on time

    On time (history)
    78%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 78% of the time (9 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 (9 flights), so its score leans on the airline's record at this hour.

    Limited track record · 9 flights

    Find Allegiant 20 fares Opens this date on Aviasales

  3. #3 · Allegiant 76

    7:48 PM → 9:12 PM1h 24m nonstop

    Local times, typical schedule. Last flown 2026-05-17.

    78%

    chance on time

    On time (history)
    67%
    Cancelled
    0.0%
    Avg arrival delay
    32 min
    • Arrived on time 67% of the time (12 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 63% on time; Before 9 AM: 97%).
    • 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 (12 flights), so its score leans on the airline's record at this hour.

    Limited track record · 12 flights

    Find Allegiant 76 fares Opens this date on Aviasales

  4. #4 · Allegiant 74

    4:22 PM → 5:46 PM1h 24m nonstop

    Local times, typical schedule. Last flown 2026-05-17.

    78%

    chance on time

    On time (history)
    72%
    Cancelled
    0.0%
    Avg arrival delay
    62 min
    • Arrived on time 72% of the time (25 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 (25 flights), so its score leans on the airline's record at this hour.

    Limited track record · 25 flights

    Find Allegiant 74 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Allegiant Air83%

    411 flights · 83% on time as flown · 0.2% cancel

On time by departure time

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

  • Before 9 AM97%

    70 flights · avg delay 5 min

  • 9 AM to noon86%

    60 flights · avg delay 9 min

  • Noon to 3 PM82%

    216 flights · avg delay 10 min

  • 3 to 6 PM75%

    32 flights · avg delay 17 min

  • 6 to 9 PM63%

    33 flights · avg delay 56 min

Best day: Wednesday (89%). Worst: Sunday (78%).

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