Skip to content

All Products

Aviation Intelligence

Alerts & Airspace

Free Pilot Tools & Widgets

RC Aviation

Games & Learning

Weather Research & More

Pilot Resources

My Airports

Your shortcuts, saved on this device. Search to add an airport.

No airports saved yet. Add the fields you visit most.

Ask ATIS

Route on-time record

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

Milwaukee (General Mitchell International Airport) to Las Vegas (Harry Reid International Airport). 1,093 nonstop flights in Jun 2025 to May 2026, 82% arrived within 15 minutes and 1.1% were cancelled. The most reliable flight number was Southwest 2354 at 5:40 AM.

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

MKE → LAS

Milwaukee to Las Vegas: 1,093 nonstop flights a year

On time (12 months)

82%

Cancelled

1.1%

avg delay 12 min

Best time to leave

9 AM to noon

93% on time vs 68% 6 to 9 PM

Most reliable airline

Southwest

81% chance on time

Check MKE to LAS 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 2354

    5:40 AM → 7:30 AM3h 50m nonstop

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

    91%

    chance on time

    On time (history)
    94%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 94% of the time (54 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • Short track record (54 flights), so its score leans on the airline's record at this hour.

    Limited track record · 54 flights

    Find Southwest 2354 fares Opens this date on Aviasales

  2. #2 · Southwest 1442

    5:15 AM → 7:30 AM4h 08m nonstop

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

    88%

    chance on time

    On time (history)
    90%
    Cancelled
    0.0%
    Avg arrival delay
    22 min
    • Arrived on time 90% of the time (10 flights, Jun 2025 to May 2026).
    • 100% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (10 flights), so its score leans on the airline's record at this hour.

    Limited track record · 10 flights

    Find Southwest 1442 fares Opens this date on Aviasales

  3. #3 · Southwest 2100

    9:00 AM → 11:00 AM4h 00m nonstop

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

    87%

    chance on time

    On time (history)
    100%
    Cancelled
    6.7%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (14 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (9 AM to noon: 93% on time; 6 to 9 PM: 68%).
    • Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
    • Short track record (14 flights), so its score leans on the airline's record at this hour.

    Limited track record · 14 flights

    Find Southwest 2100 fares Opens this date on Aviasales

  4. #4 · Southwest 2635

    5:00 AM → 7:05 AM4h 05m nonstop

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

    87%

    chance on time

    On time (history)
    90%
    Cancelled
    6.1%
    Avg arrival delay
    4 min
    • Arrived on time 90% of the time (31 flights, Jun 2025 to May 2026).
    • Cancelled 6.1% of the time (2 of 33).
    • Short track record (31 flights), so its score leans on the airline's record at this hour.

    Limited track record · 31 flights

    Find Southwest 2635 fares Opens this date on Aviasales

  5. #5 · Southwest 1528

    10:20 AM → 12:15 PM3h 55m nonstop

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

    86%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 91% of the time (47 flights, Jun 2025 to May 2026).
    • Never cancelled in 47 scheduled flights.
    • Leaves in this route's most on-time window (9 AM to noon: 93% on time; 6 to 9 PM: 68%).
    • Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.

    Limited track record · 47 flights

    Find Southwest 1528 fares Opens this date on Aviasales

  6. #6 · Southwest 2721

    12:05 PM → 2:10 PM4h 05m nonstop

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

    78%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
    • Lands 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 2721 fares Opens this date on Aviasales

  7. #7 · Southwest 1988

    3:55 PM → 5:50 PM3h 55m nonstop

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

    78%

    chance on time

    On time (history)
    75%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 75% of the time (16 flights, Jun 2025 to May 2026).
    • 70% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (16 flights), so its score leans on the airline's record at this hour.

    Limited track record · 16 flights

    Find Southwest 1988 fares Opens this date on Aviasales

  8. #8 · Southwest 1691

    5:10 PM → 7:10 PM4h 00m nonstop

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

    77%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
    • Short track record (8 flights), so its score leans on the airline's record at this hour.

    Limited track record · 8 flights

    Find Southwest 1691 fares Opens this date on Aviasales

  9. #9 · Southwest 834

    7:30 PM → 9:25 PM3h 55m nonstop

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

    76%

    chance on time

    On time (history)
    79%
    Cancelled
    4.0%
    Avg arrival delay
    9 min
    • Arrived on time 79% of the time (24 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 68% on time; 9 AM to noon: 93%).
    • Short track record (24 flights), so its score leans on the airline's record at this hour.

    Limited track record · 24 flights

    Find Southwest 834 fares Opens this date on Aviasales

  10. #10 · Southwest 3742

    6:30 PM → 8:20 PM3h 50m nonstop

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

    69%

    chance on time

    On time (history)
    68%
    Cancelled
    0.0%
    Avg arrival delay
    19 min
    • Arrived on time 68% of the time (37 flights, Jun 2025 to May 2026).
    • Never cancelled in 38 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 68% on time; 9 AM to noon: 93%).
    • 50% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 37 flights

    Find Southwest 3742 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines81%

    1,003 flights · 82% on time as flown · 0.9% cancel

  • Spirit Airlines81%

    84 flights · 82% on time as flown · 1.6% cancel

On time by departure time

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

  • Before 9 AM92%

    363 flights · avg delay 6 min

  • 9 AM to noon93%

    100 flights · avg delay 3 min

  • Noon to 3 PM79%

    255 flights · avg delay 10 min

  • 3 to 6 PM71%

    121 flights · avg delay 18 min

  • 6 to 9 PM68%

    220 flights · avg delay 25 min

  • After 9 PM88%

    34 flights · avg delay 9 min

Best day: Wednesday (87%). Worst: Thursday (81%).

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
81
M
83
A
88
M
84
J
80
J
76
A
83
S
86
O
88
N
83
D
84

What delays this route

  • Late-arriving aircraft50%
  • Airline (crew, maintenance, boarding)29%
  • Air traffic control and airport volume21%

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

MKE to LAS questions

What time of day is best to fly MKE to LAS?
9 AM to noon: 93% of flights arrived on time, against 68% for departures 6 to 9 PM.
Which airline is most on time from MKE to LAS?
Southwest, with a season-adjusted 81% chance of operating and arriving on time over 1,003 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 MKE to LAS?
July (76% on time); the best was April (88%), 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 MKE

Live status: FAA delays and ground stops