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Route on-time record

LAX to LAS: most on-time flights and the best time to fly

Los Angeles (Los Angeles International Airport) to Las Vegas (Harry Reid International Airport). 8,420 nonstop flights in Jun 2025 to May 2026, 77% arrived within 15 minutes and 0.8% were cancelled. The most reliable flight number was Southwest 2855 at 5:20 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

LAX → LAS

Los Angeles to Las Vegas: 8,420 nonstop flights a year

On time (12 months)

77%

Cancelled

0.8%

avg delay 16 min

Best time to leave

Before 9 AM

94% on time vs 68% noon to 3 PM

Most reliable airline

SkyWest

84% chance on time

Check LAX to LAS fares

Lowest nonstop fare seen in the next two months: $19 (Frontier 3292 on 2026-11-17). 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 2855

    5:20 AM → 6:35 AM1h 15m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3758; its record covers all of them.

    95%

    chance on time

    On time (history)
    100%
    Cancelled
    1.6%
    Avg arrival delay
    0 min
    • Arrived on time 100% of the time (62 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; Noon to 3 PM: 68%).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).

    Moderate track record · 62 flights

    Find Southwest 2855 fares Opens this date on Aviasales

  2. #2 · SkyWest 6425 · sold as United Express, Delta Connection, American Eagle or Alaska

    8:28 AM → 9:53 AM1h 25m nonstop

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

    95%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (11 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; Noon to 3 PM: 68%).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
    • Short track record (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find 8:28 AM flight fares Opens this date on Aviasales

  3. #3 · Delta 2253

    7:35 AM → 8:45 AM1h 10m nonstop

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

    94%

    chance on time

    On time (history)
    95%
    Cancelled
    1.1%
    Avg arrival delay
    3 min
    • Arrived on time 95% of the time (344 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; Noon to 3 PM: 68%).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).

    Strong track record · 344 flights

    Find Delta 2253 fares Opens this date on Aviasales

  4. #4 · United 1006

    8:15 AM → 9:37 AM1h 22m nonstop

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

    92%

    chance on time

    On time (history)
    93%
    Cancelled
    0.7%
    Avg arrival delay
    4 min
    • Arrived on time 93% of the time (284 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; Noon to 3 PM: 68%).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).

    Strong track record · 284 flights

    Find United 1006 fares Opens this date on Aviasales

  5. #5 · Southwest 3828

    8:40 AM → 9:55 AM1h 15m nonstop

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

    92%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (16 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; Noon to 3 PM: 68%).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
    • Short track record (16 flights), so its score leans on the airline's record at this hour.

    Limited track record · 16 flights

    Find Southwest 3828 fares Opens this date on Aviasales

  6. #6 · Southwest 1470

    5:30 AM → 6:45 AM1h 15m nonstop

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

    89%

    chance on time

    On time (history)
    94%
    Cancelled
    6.1%
    Avg arrival delay
    13 min
    • Arrived on time 94% of the time (31 flights, Jun 2025 to May 2026).
    • Cancelled 6.1% of the time (2 of 33).
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; Noon to 3 PM: 68%).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).

    Limited track record · 31 flights

    Find Southwest 1470 fares Opens this date on Aviasales

  7. #7 · Spirit 1010

    8:30 AM → 9:45 AM1h 15m nonstop

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

    89%

    chance on time

    On time (history)
    79%
    Cancelled
    0.0%
    Avg arrival delay
    31 min
    • Arrived on time 79% of the time (14 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; Noon to 3 PM: 68%).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
    • Short track record (14 flights), so its score leans on the airline's record at this hour.

    Limited track record · 14 flights

    Find Spirit 1010 fares Opens this date on Aviasales

  8. #8 · Southwest 2530

    7:40 AM → 8:50 AM1h 10m nonstop

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

    87%

    chance on time

    On time (history)
    85%
    Cancelled
    0.0%
    Avg arrival delay
    11 min
    • Arrived on time 85% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; Noon to 3 PM: 68%).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).

    Limited track record · 33 flights

    Find Southwest 2530 fares Opens this date on Aviasales

  9. #9 · Southwest 1758

    8:05 AM → 9:15 AM1h 10m nonstop

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

    87%

    chance on time

    On time (history)
    83%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 83% of the time (23 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; Noon to 3 PM: 68%).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 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 1758 fares Opens this date on Aviasales

  10. #10 · Spirit 1637

    4:07 PM → 5:14 PM1h 07m nonstop

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

    86%

    chance on time

    On time (history)
    88%
    Cancelled
    2.1%
    Avg arrival delay
    12 min
    • Arrived on time 88% of the time (94 flights, Jun 2025 to May 2026).
    • Departs inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.

    Moderate track record · 94 flights

    Find Spirit 1637 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)84%

    296 flights · 87% on time as flown · 1.4% cancel

  • United Airlines83%

    1,560 flights · 84% on time as flown · 0.5% cancel

  • Spirit Airlines83%

    730 flights · 84% on time as flown · 0.9% cancel

  • Delta Air Lines77%

    1,736 flights · 78% on time as flown · 0.7% cancel

  • Southwest Airlines73%

    2,399 flights · 74% on time as flown · 0.6% cancel

  • Frontier Airlines69%

    576 flights · 69% on time as flown · 1.5% cancel

  • American Airlines68%

    1,106 flights · 68% on time as flown · 0.7% cancel

On time by departure time

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

  • Before 9 AM94%

    1,483 flights · avg delay 4 min

  • 9 AM to noon81%

    1,629 flights · avg delay 14 min

  • Noon to 3 PM68%

    820 flights · avg delay 22 min

  • 3 to 6 PM70%

    1,784 flights · avg delay 20 min

  • 6 to 9 PM72%

    1,707 flights · avg delay 22 min

  • After 9 PM73%

    997 flights · avg delay 16 min

Best day: Tuesday (84%). Worst: Friday (69%).

Smarter routing

Nearby airports that run more on time

  • SNA → LAS 83% chance on time

    John Wayne Orange County International Airport to Harry Reid International Airport · 4,386 flights a year · 36 mi from your airports · yours: 76%

    Rank flightsFares

  • LGB → LAS 81% chance on time

    Long Beach International Airport to Harry Reid International Airport · 2,188 flights a year · 17 mi from your airports · yours: 76%

    Rank flightsFares

  • BUR → LAS 80% chance on time

    Hollywood Burbank/Bob Hope Airport to Harry Reid International Airport · 4,281 flights a year · 18 mi from your airports · yours: 76%

    Rank flightsFares

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
80
F
78
M
75
A
76
M
75
J
71
J
70
A
77
S
77
O
80
N
82
D
81

What delays this route

  • Late-arriving aircraft45%
  • Airline (crew, maintenance, boarding)28%
  • Air traffic control and airport volume27%

Share of delay minutes by the cause airlines report to the US DOT.

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

LAX to LAS questions

What time of day is best to fly LAX to LAS?
Before 9 AM: 94% of flights arrived on time, against 68% for departures noon to 3 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from LAX to LAS?
SkyWest, with a season-adjusted 84% chance of operating and arriving on time over 296 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on LAX to LAS?
July (70% on time); the best was November (82%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from LAX

Live status: FAA delays and ground stops