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Route on-time record

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

Las Vegas (Harry Reid International Airport) to Dallas (Dallas Love Field). 2,877 nonstop flights in Jun 2025 to May 2026, 73% arrived within 15 minutes and 1.6% were cancelled. The most reliable flight number was Southwest 2738 at 5:00 AM.

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

LAS → DAL

Las Vegas to Dallas: 2,877 nonstop flights a year

On time (12 months)

73%

Cancelled

1.6%

avg delay 15 min

Best time to leave

Before 9 AM

91% on time vs 55% 6 to 9 PM

Most reliable airline

Southwest

72% chance on time

Check LAS to DAL fares

Lowest nonstop fare seen in the next two months: $102 (Southwest 19 on 2026-11-19). 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 2738

    5:00 AM → 9:35 AM2h 35m nonstop

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

    91%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 100% 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; 6 to 9 PM: 55%).
    • 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 2738 fares Opens this date on Aviasales

  2. #2 · Southwest 1223

    6:35 AM → 11:15 AM2h 40m nonstop

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

    91%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (24 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 55%).
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
    • Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.

    Limited track record · 24 flights

    Find Southwest 1223 fares Opens this date on Aviasales

  3. #3 · Southwest 258

    5:10 AM → 9:45 AM2h 35m nonstop

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

    90%

    chance on time

    On time (history)
    96%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 96% of the time (25 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 55%).
    • 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 Southwest 258 fares Opens this date on Aviasales

  4. #4 · Southwest 4720

    5:30 AM → 10:05 AM2h 35m nonstop

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

    90%

    chance on time

    On time (history)
    96%
    Cancelled
    0.0%
    Avg arrival delay
    3 min
    • Arrived on time 96% 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; 6 to 9 PM: 55%).
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
    • Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.

    Limited track record · 23 flights

    Find Southwest 4720 fares Opens this date on Aviasales

  5. #5 · Southwest 2495

    6:00 AM → 10:40 AM2h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-29. Same departure also flew as Southwest 2357; its record covers all of them.

    90%

    chance on time

    On time (history)
    94%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 94% of the time (36 flights, Jun 2025 to May 2026).
    • Never cancelled in 36 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 55%).
    • 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 · 36 flights

    Find Southwest 2495 fares Opens this date on Aviasales

  6. #6 · Southwest 3112

    9:30 AM → 2:10 PM2h 40m nonstop

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

    83%

    chance on time

    On time (history)
    92%
    Cancelled
    7.1%
    Avg arrival delay
    8 min
    • Arrived on time 92% of the time (26 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).
    • Lands inside DAL's trouble window: 67% of its 42 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 Southwest 3112 fares Opens this date on Aviasales

  7. #7 · Southwest 1347

    8:50 AM → 1:30 PM2h 40m nonstop

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

    82%

    chance on time

    On time (history)
    85%
    Cancelled
    3.6%
    Avg arrival delay
    8 min
    • Arrived on time 85% of the time (53 flights, Jun 2025 to May 2026).
    • Cancelled 3.6% of the time (2 of 55).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 55%).
    • 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 · 53 flights

    Find Southwest 1347 fares Opens this date on Aviasales

  8. #8 · Southwest 2531

    7:45 AM → 12:25 PM2h 40m nonstop

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

    82%

    chance on time

    On time (history)
    80%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 80% 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; 6 to 9 PM: 55%).
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
    • Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.

    Limited track record · 15 flights

    Find Southwest 2531 fares Opens this date on Aviasales

  9. #9 · Southwest 2512

    8:10 AM → 12:50 PM2h 40m nonstop

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

    82%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    3 min
    • Arrived on time 100% of the time (7 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 55%).
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
    • Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.

    Limited track record · 7 flights

    Find Southwest 2512 fares Opens this date on Aviasales

  10. #10 · Southwest 3537

    8:40 AM → 1:20 PM2h 40m nonstop

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

    81%

    chance on time

    On time (history)
    86%
    Cancelled
    6.7%
    Avg arrival delay
    5 min
    • Arrived on time 86% of the time (14 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 55%).
    • Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
    • Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.

    Limited track record · 14 flights

    Find Southwest 3537 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines72%

    2,877 flights · 73% on time as flown · 1.6% cancel

On time by departure time

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

  • Before 9 AM91%

    959 flights · avg delay 5 min

  • 9 AM to noon76%

    465 flights · avg delay 11 min

  • Noon to 3 PM63%

    549 flights · avg delay 20 min

  • 3 to 6 PM60%

    666 flights · avg delay 24 min

  • 6 to 9 PM55%

    238 flights · avg delay 27 min

Best day: Saturday (82%). Worst: Sunday (68%).

Smarter routing

Nearby airports that run more on time

  • LAS → DFW 78% chance on time

    Harry Reid International Airport to Dallas Fort Worth International Airport · 5,242 flights a year · 12 mi from your airports · yours: 72%

    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
79
F
76
M
74
A
76
M
69
J
70
J
67
A
73
S
78
O
75
N
79
D
81

What delays this route

  • Late-arriving aircraft44%
  • Airline (crew, maintenance, boarding)34%
  • Air traffic control and airport volume19%
  • Severe weather3%

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

LAS to DAL questions

What time of day is best to fly LAS to DAL?
Before 9 AM: 91% of flights arrived on time, against 55% for departures 6 to 9 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 LAS to DAL?
Southwest, with a season-adjusted 72% chance of operating and arriving on time over 2,877 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 LAS to DAL?
July (67% on time); the best was December (81%), 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 LAS

Live status: FAA delays and ground stops