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Route on-time record

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

Chicago (Chicago Midway International Airport) to Kansas City (Kansas City International Airport). 2,093 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 1.3% were cancelled. The most reliable flight number was Southwest 2644 at 7:50 AM.

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

MDW → MCI

Chicago to Kansas City: 2,093 nonstop flights a year

On time (12 months)

79%

Cancelled

1.3%

avg delay 13 min

Best time to leave

Before 9 AM

91% on time vs 54% after 9 PM

Most reliable airline

Southwest

78% chance on time

Check MDW to MCI 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 2644

    7:50 AM → 9:20 AM1h 30m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3192; its record covers all of them.

    91%

    chance on time

    On time (history)
    94%
    Cancelled
    1.1%
    Avg arrival delay
    6 min
    • Arrived on time 94% of the time (87 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; After 9 PM: 54%).
    • Departs inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.

    Moderate track record · 87 flights

    Find Southwest 2644 fares Opens this date on Aviasales

  2. #2 · Southwest 3805

    11:40 AM → 1:10 PM1h 30m nonstop

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

    83%

    chance on time

    On time (history)
    92%
    Cancelled
    13.3%
    Avg arrival delay
    4 min
    • Arrived on time 92% of the time (13 flights, Jun 2025 to May 2026).
    • Departs inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
    • Short track record (13 flights), so its score leans on the airline's record at this hour.

    Limited track record · 13 flights

    Find Southwest 3805 fares Opens this date on Aviasales

  3. #3 · Southwest 3548

    10:00 AM → 11:30 AM1h 30m nonstop

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

    81%

    chance on time

    On time (history)
    80%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 80% of the time (55 flights, Jun 2025 to May 2026).
    • Never cancelled in 55 scheduled flights.
    • Departs inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
    • Short track record (55 flights), so its score leans on the airline's record at this hour.

    Limited track record · 55 flights

    Find Southwest 3548 fares Opens this date on Aviasales

  4. #4 · Southwest 3691

    10:10 AM → 11:40 AM1h 30m nonstop

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

    80%

    chance on time

    On time (history)
    77%
    Cancelled
    6.1%
    Avg arrival delay
    13 min
    • Arrived on time 77% of the time (31 flights, Jun 2025 to May 2026).
    • Cancelled 6.1% of the time (2 of 33).
    • Departs inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
    • Short track record (31 flights), so its score leans on the airline's record at this hour.

    Limited track record · 31 flights

    Find Southwest 3691 fares Opens this date on Aviasales

  5. #5 · Southwest 2950

    11:55 AM → 1:25 PM1h 30m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 280; its record covers all of them.

    78%

    chance on time

    On time (history)
    75%
    Cancelled
    1.0%
    Avg arrival delay
    21 min
    • Arrived on time 75% of the time (97 flights, Jun 2025 to May 2026).
    • Departs inside MDW's trouble window: 50% of its 30 ground stops and delay programs started between 7 AM and 1 PM.
    • 61% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 97 flights

    Find Southwest 2950 fares Opens this date on Aviasales

  6. #6 · Southwest 458

    5:25 PM → 6:55 PM1h 30m nonstop

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

    75%

    chance on time

    On time (history)
    74%
    Cancelled
    0.0%
    Avg arrival delay
    11 min
    • Arrived on time 74% of the time (70 flights, Jun 2025 to May 2026).
    • Never cancelled in 70 scheduled flights.
    • Departs outside MDW's trouble window (7 AM to 1 PM, when 50% of its 30 ground stops and delay programs started).

    Moderate track record · 70 flights

    Find Southwest 458 fares Opens this date on Aviasales

  7. #7 · Southwest 943

    2:30 PM → 4:00 PM1h 30m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3493; its record covers all of them.

    75%

    chance on time

    On time (history)
    71%
    Cancelled
    0.0%
    Avg arrival delay
    16 min
    • Arrived on time 71% of the time (59 flights, Jun 2025 to May 2026).
    • Never cancelled in 59 scheduled flights.
    • Departs outside MDW's trouble window (7 AM to 1 PM, when 50% of its 30 ground stops and delay programs started).
    • 66% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 59 flights

    Find Southwest 943 fares Opens this date on Aviasales

  8. #8 · Southwest 3215

    4:10 PM → 5:40 PM1h 30m nonstop

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

    73%

    chance on time

    On time (history)
    73%
    Cancelled
    4.3%
    Avg arrival delay
    20 min
    • Arrived on time 73% of the time (22 flights, Jun 2025 to May 2026).
    • Departs outside MDW's trouble window (7 AM to 1 PM, when 50% of its 30 ground stops and delay programs started).
    • Short track record (22 flights), so its score leans on the airline's record at this hour.

    Limited track record · 22 flights

    Find Southwest 3215 fares Opens this date on Aviasales

  9. #9 · Southwest 1513

    6:30 PM → 8:00 PM1h 30m nonstop

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

    69%

    chance on time

    On time (history)
    61%
    Cancelled
    3.0%
    Avg arrival delay
    20 min
    • Arrived on time 61% of the time (31 flights, Jun 2025 to May 2026).
    • Cancelled 3.0% of the time (1 of 33).
    • Departs outside MDW's trouble window (7 AM to 1 PM, when 50% of its 30 ground stops and delay programs started).
    • 64% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 31 flights

    Find Southwest 1513 fares Opens this date on Aviasales

  10. #10 · Southwest 3304

    9:30 PM → 11:00 PM1h 30m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3960; its record covers all of them.

    62%

    chance on time

    On time (history)
    59%
    Cancelled
    2.5%
    Avg arrival delay
    29 min
    • Arrived on time 59% of the time (78 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (After 9 PM: 54% on time; Before 9 AM: 91%).
    • Departs outside MDW's trouble window (7 AM to 1 PM, when 50% of its 30 ground stops and delay programs started).

    Moderate track record · 78 flights

    Find Southwest 3304 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines78%

    2,093 flights · 79% on time as flown · 1.3% cancel

On time by departure time

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

  • Before 9 AM91%

    509 flights · avg delay 5 min

  • 9 AM to noon87%

    355 flights · avg delay 8 min

  • Noon to 3 PM81%

    379 flights · avg delay 11 min

  • 3 to 6 PM75%

    338 flights · avg delay 15 min

  • 6 to 9 PM69%

    322 flights · avg delay 18 min

  • After 9 PM54%

    190 flights · avg delay 30 min

Best day: Tuesday (83%). Worst: Sunday (76%).

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
81
F
86
M
79
A
80
M
76
J
74
J
67
A
76
S
81
O
86
N
88
D
79

What delays this route

  • Late-arriving aircraft50%
  • Airline (crew, maintenance, boarding)33%
  • Air traffic control and airport volume13%
  • 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

MDW to MCI questions

What time of day is best to fly MDW to MCI?
Before 9 AM: 91% of flights arrived on time, against 54% for departures after 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 MDW to MCI?
Southwest, with a season-adjusted 78% chance of operating and arriving on time over 2,093 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 MDW to MCI?
July (67% on time); the best was November (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 MDW

Live status: FAA delays and ground stops