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Route on-time record

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

Cincinnati / Covington (Cincinnati Northern Kentucky International Airport) to Chicago (Chicago Midway International Airport). 494 nonstop flights in Jun 2025 to May 2026, 83% arrived within 15 minutes and 1.2% were cancelled. The most reliable flight number was Southwest 492 at 8:45 AM.

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

CVG → MDW

Cincinnati / Covington to Chicago: 494 nonstop flights a year

On time (12 months)

83%

Cancelled

1.2%

avg delay 12 min

Best time to leave

3 to 6 PM

92% on time vs 64% 6 to 9 PM

Most reliable airline

Southwest

83% chance on time

Check CVG to MDW fares

Lowest nonstop fare seen in the next two months: $162 (Southwest 1324 on 2026-11-25). 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 492

    8:45 AM → 9:00 AM1h 15m nonstop

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

    84%

    chance on time

    On time (history)
    88%
    Cancelled
    3.0%
    Avg arrival delay
    15 min
    • Arrived on time 88% of the time (32 flights, Jun 2025 to May 2026).
    • Cancelled 3.0% of the time (1 of 33).
    • 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 (32 flights), so its score leans on the airline's record at this hour.

    Limited track record · 32 flights

    Find Southwest 492 fares Opens this date on Aviasales

  2. #2 · Southwest 1457

    9:00 AM → 9:15 AM1h 10m nonstop

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

    81%

    chance on time

    On time (history)
    78%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 78% of the time (55 flights, Jun 2025 to May 2026).
    • Never cancelled in 55 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 (55 flights), so its score leans on the airline's record at this hour.

    Limited track record · 55 flights

    Find Southwest 1457 fares Opens this date on Aviasales

  3. #3 · Southwest 1459

    8:20 PM → 8:30 PM1h 10m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3267; its record covers all of them.

    73%

    chance on time

    On time (history)
    69%
    Cancelled
    0.0%
    Avg arrival delay
    24 min
    • Arrived on time 69% of the time (86 flights, Jun 2025 to May 2026).
    • Never cancelled in 87 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 64% on time; 3 to 6 PM: 92%).

    Moderate track record · 86 flights

    Find Southwest 1459 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines83%

    494 flights · 83% on time as flown · 1.2% cancel

On time by departure time

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

  • Before 9 AM88%

    306 flights · avg delay 8 min

  • 3 to 6 PM92%

    38 flights · avg delay 5 min

  • 6 to 9 PM64%

    97 flights · avg delay 28 min

Best day: Wednesday (87%). Worst: Sunday (78%).

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
78
F
88
M
81
A
85
M
75
J
80
J
73
A
85
S
91
O
95
N
93
D
80

What delays this route

  • Airline (crew, maintenance, boarding)34%
  • Air traffic control and airport volume30%
  • Late-arriving aircraft29%
  • Severe weather7%

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

CVG to MDW questions

What time of day is best to fly CVG to MDW?
3 to 6 PM: 92% of flights arrived on time, against 64% for departures 6 to 9 PM.
Which airline is most on time from CVG to MDW?
Southwest, with a season-adjusted 83% chance of operating and arriving on time over 494 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 CVG to MDW?
July (73% on time); the best was October (95%), 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 CVG

Live status: FAA delays and ground stops