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Route on-time record

MCI to MDW: most on-time flights and the best time to fly

Kansas City (Kansas City International Airport) to Chicago (Chicago Midway International Airport). 2,097 nonstop flights in Jun 2025 to May 2026, 80% arrived within 15 minutes and 1.1% were cancelled. The most reliable flight number was Southwest 3814 at 10:35 AM.

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

MCI → MDW

Kansas City to Chicago: 2,097 nonstop flights a year

On time (12 months)

80%

Cancelled

1.1%

avg delay 12 min

Best time to leave

Before 9 AM

89% on time vs 65% 6 to 9 PM

Most reliable airline

Southwest

79% chance on time

Check MCI to MDW 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 3814

    10:35 AM → 12:00 PM1h 25m nonstop

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

    89%

    chance on time

    On time (history)
    92%
    Cancelled
    1.4%
    Avg arrival delay
    6 min
    • Arrived on time 92% of the time (71 flights, Jun 2025 to May 2026).
    • Lands inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.

    Moderate track record · 71 flights

    Find Southwest 3814 fares Opens this date on Aviasales

  2. #2 · Southwest 3313

    5:30 AM → 6:55 AM1h 25m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3513; its record covers all of them.

    87%

    chance on time

    On time (history)
    86%
    Cancelled
    0.0%
    Avg arrival delay
    11 min
    • Arrived on time 86% of the time (63 flights, Jun 2025 to May 2026).
    • Never cancelled in 63 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 89% on time; 6 to 9 PM: 65%).

    Moderate track record · 63 flights

    Find Southwest 3313 fares Opens this date on Aviasales

  3. #3 · Southwest 2359

    10:45 AM → 12:10 PM1h 25m nonstop

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

    86%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 88% of the time (16 flights, Jun 2025 to May 2026).
    • Lands inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
    • Short track record (16 flights), so its score leans on the airline's record at this hour.

    Limited track record · 16 flights

    Find Southwest 2359 fares Opens this date on Aviasales

  4. #4 · Southwest 2407

    10:05 AM → 11:30 AM1h 25m nonstop

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

    86%

    chance on time

    On time (history)
    85%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 85% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • Lands inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
    • Short track record (33 flights), so its score leans on the airline's record at this hour.

    Limited track record · 33 flights

    Find Southwest 2407 fares Opens this date on Aviasales

  5. #5 · Southwest 366

    1:50 PM → 3:10 PM1h 20m nonstop

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

    85%

    chance on time

    On time (history)
    88%
    Cancelled
    3.0%
    Avg arrival delay
    11 min
    • Arrived on time 88% of the time (32 flights, Jun 2025 to May 2026).
    • Cancelled 3.0% of the time (1 of 33).
    • 74% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (32 flights), so its score leans on the airline's record at this hour.

    Limited track record · 32 flights

    Find Southwest 366 fares Opens this date on Aviasales

  6. #6 · Southwest 3816

    8:30 AM → 9:55 AM1h 25m nonstop

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

    84%

    chance on time

    On time (history)
    86%
    Cancelled
    4.3%
    Avg arrival delay
    11 min
    • Arrived on time 86% of the time (22 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 89% on time; 6 to 9 PM: 65%).
    • Lands inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
    • Short track record (22 flights), so its score leans on the airline's record at this hour.

    Limited track record · 22 flights

    Find Southwest 3816 fares Opens this date on Aviasales

  7. #7 · Southwest 547

    8:00 AM → 9:25 AM1h 25m nonstop

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

    83%

    chance on time

    On time (history)
    83%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 83% 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 (Before 9 AM: 89% on time; 6 to 9 PM: 65%).
    • Lands inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.

    Limited track record · 47 flights

    Find Southwest 547 fares Opens this date on Aviasales

  8. #8 · Southwest 1286

    3:30 PM → 4:55 PM1h 25m nonstop

    Local times, typical schedule. Last flown 2026-05-30.

    73%

    chance on time

    On time (history)
    71%
    Cancelled
    0.0%
    Avg arrival delay
    12 min
    • Arrived on time 71% of the time (24 flights, Jun 2025 to May 2026).
    • Short track record (24 flights), so its score leans on the airline's record at this hour.

    Limited track record · 24 flights

    Find Southwest 1286 fares Opens this date on Aviasales

  9. #9 · Southwest 1161

    6:45 PM → 8:10 PM1h 25m nonstop

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

    72%

    chance on time

    On time (history)
    69%
    Cancelled
    0.0%
    Avg arrival delay
    27 min
    • Arrived on time 69% of the time (16 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 65% on time; Before 9 AM: 89%).
    • 96% 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 1161 fares Opens this date on Aviasales

  10. #10 · Southwest 3178

    4:55 PM → 6:20 PM1h 25m nonstop

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

    72%

    chance on time

    On time (history)
    72%
    Cancelled
    0.0%
    Avg arrival delay
    12 min
    • Arrived on time 72% of the time (53 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • 63% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (53 flights), so its score leans on the airline's record at this hour.

    Limited track record · 53 flights

    Find Southwest 3178 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines79%

    2,097 flights · 80% on time as flown · 1.1% cancel

On time by departure time

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

  • Before 9 AM89%

    577 flights · avg delay 7 min

  • 9 AM to noon88%

    390 flights · avg delay 7 min

  • Noon to 3 PM84%

    312 flights · avg delay 10 min

  • 3 to 6 PM70%

    431 flights · avg delay 17 min

  • 6 to 9 PM65%

    332 flights · avg delay 22 min

Best day: Wednesday (88%). Worst: Sunday (77%).

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
84
F
88
M
85
A
80
M
76
J
82
J
74
A
81
S
89
O
85
N
89
D
86

What delays this route

  • Late-arriving aircraft57%
  • Airline (crew, maintenance, boarding)23%
  • Air traffic control and airport volume16%
  • Severe weather4%

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

MCI to MDW questions

What time of day is best to fly MCI to MDW?
Before 9 AM: 89% of flights arrived on time, against 65% 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 MCI to MDW?
Southwest, with a season-adjusted 79% chance of operating and arriving on time over 2,097 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 MCI to MDW?
July (74% on time); the best was September (89%), 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 MCI

Live status: FAA delays and ground stops