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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 → SNA

Las Vegas to Santa Ana: 4,387 nonstop flights a year

On time (12 months)

82%

Cancelled

0.7%

avg delay 11 min

Best time to leave

Before 9 AM

91% on time vs 78% 3 to 6 PM

Most reliable airline

Spirit

86% chance on time

Check LAS to SNA fares

Lowest nonstop fare seen in the next two months: $60 (MX 619 on 2026-11-04). 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 247

    7:05 AM → 8:15 AM1h 10m nonstop

    Local times, typical schedule. Last flown 2026-05-30. Same departure also flew as Southwest 3280; its record covers all of them.

    91%

    chance on time

    On time (history)
    94%
    Cancelled
    1.3%
    Avg arrival delay
    5 min
    • Arrived on time 94% of the time (79 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 78%).
    • 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 · 79 flights

    Find Southwest 247 fares Opens this date on Aviasales

  2. #2 · Spirit 657

    7:00 AM → 8:05 AM1h 05m nonstop

    Local times, typical schedule. Last flown 2026-05-01.

    91%

    chance on time

    On time (history)
    89%
    Cancelled
    0.0%
    Avg arrival delay
    3 min
    • Arrived on time 89% of the time (9 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 78%).
    • 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 (9 flights), so its score leans on the airline's record at this hour.

    Limited track record · 9 flights

    Find Spirit 657 fares Opens this date on Aviasales

  3. #3 · SkyWest 4074 · sold as United Express, Delta Connection, American Eagle or Alaska

    3:30 PM → 4:48 PM1h 18m nonstop

    Local times, typical schedule. Last flown 2026-04-12.

    89%

    chance on time

    On time (history)
    94%
    Cancelled
    2.1%
    Avg arrival delay
    5 min
    • Arrived on time 94% of the time (94 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 78% on time; Before 9 AM: 91%).
    • Departs inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.

    Moderate track record · 94 flights

    Find 3:30 PM flight fares Opens this date on Aviasales

  4. #4 · Spirit 1220

    8:36 PM → 9:45 PM1h 09m nonstop

    Local times, typical schedule. Last flown 2026-04-30.

    89%

    chance on time

    On time (history)
    94%
    Cancelled
    1.9%
    Avg arrival delay
    2 min
    • Arrived on time 94% of the time (51 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 (51 flights), so its score leans on the airline's record at this hour.

    Limited track record · 51 flights

    Find Spirit 1220 fares Opens this date on Aviasales

  5. #5 · Frontier 1699

    11:02 AM → 12:19 PM1h 17m nonstop

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

    88%

    chance on time

    On time (history)
    94%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 94% of the time (49 flights, Jun 2025 to May 2026).
    • Never cancelled in 49 scheduled flights.
    • 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 (49 flights), so its score leans on the airline's record at this hour.

    Limited track record · 49 flights

    Find Frontier 1699 fares Opens this date on Aviasales

  6. #6 · SkyWest 4078 · sold as United Express, Delta Connection, American Eagle or Alaska

    8:55 AM → 10:08 AM1h 16m nonstop

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

    87%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    11 min
    • Arrived on time 87% of the time (364 flights, Jun 2025 to May 2026).
    • Never cancelled in 365 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 78%).
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).

    Strong track record · 364 flights

    Find 8:55 AM flight fares Opens this date on Aviasales

  7. #7 · Spirit 1622

    8:48 AM → 9:53 AM1h 05m nonstop

    Local times, typical schedule. Last flown 2026-04-13.

    87%

    chance on time

    On time (history)
    90%
    Cancelled
    4.2%
    Avg arrival delay
    6 min
    • Arrived on time 90% of the time (91 flights, Jun 2025 to May 2026).
    • Cancelled 4.2% of the time (4 of 95).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 78%).
    • 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 · 91 flights

    Find Spirit 1622 fares Opens this date on Aviasales

  8. #8 · Southwest 4607

    8:30 AM → 9:40 AM1h 10m nonstop

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

    86%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 87% of the time (23 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 78%).
    • 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 (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find Southwest 4607 fares Opens this date on Aviasales

  9. #9 · Spirit 1626

    8:10 PM → 9:13 PM1h 03m nonstop

    Local times, typical schedule. Last flown 2026-04-14.

    85%

    chance on time

    On time (history)
    89%
    Cancelled
    3.1%
    Avg arrival delay
    5 min
    • Arrived on time 89% of the time (94 flights, Jun 2025 to May 2026).
    • Cancelled 3.1% of the time (3 of 97).
    • 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 · 94 flights

    Find Spirit 1626 fares Opens this date on Aviasales

  10. #10 · Southwest 458

    8:40 AM → 9:50 AM1h 10m nonstop

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

    85%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 87% of the time (15 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 78%).
    • 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 (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find Southwest 458 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Spirit Airlines86%

    889 flights · 87% on time as flown · 1.3% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)85%

    786 flights · 86% on time as flown · 0.6% cancel

  • Frontier Airlines80%

    212 flights · 81% on time as flown · 1.1% cancel

  • Southwest Airlines79%

    2,500 flights · 79% on time as flown · 0.4% cancel

On time by departure time

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

  • Before 9 AM91%

    823 flights · avg delay 7 min

  • 9 AM to noon83%

    777 flights · avg delay 10 min

  • Noon to 3 PM78%

    679 flights · avg delay 14 min

  • 3 to 6 PM78%

    946 flights · avg delay 13 min

  • 6 to 9 PM79%

    1,007 flights · avg delay 12 min

  • After 9 PM89%

    155 flights · avg delay 4 min

Best day: Tuesday (88%). Worst: Sunday (74%).

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