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Route on-time record

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

Miami (Miami International Airport) to Cincinnati / Covington (Cincinnati Northern Kentucky International Airport). 1,012 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was Envoy 4121 at 8:46 AM.

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

MIA → CVG

Miami to Cincinnati / Covington: 1,012 nonstop flights a year

On time (12 months)

76%

Cancelled

0.9%

avg delay 15 min

Best time to leave

Before 9 AM

91% on time vs 67% 3 to 6 PM

Most reliable airline

Envoy

76% chance on time

Check MIA to CVG fares

Lowest nonstop fare seen in the next two months: $401 (American 3472 on 2026-10-31). 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 · Envoy 4121 · sold as American Eagle

    8:46 AM → 11:36 AM2h 50m nonstop

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

    85%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    0 min
    • Arrived on time 100% of the time (11 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 67%).
    • Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
    • Short track record (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find 8:46 AM flight fares Opens this date on Aviasales

  2. #2 · Envoy 3676 · sold as American Eagle

    7:39 PM → 10:43 PM3h 04m nonstop

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

    82%

    chance on time

    On time (history)
    84%
    Cancelled
    1.3%
    Avg arrival delay
    8 min
    • Arrived on time 84% of the time (153 flights, Jun 2025 to May 2026).
    • Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).

    Moderate track record · 153 flights

    Find 7:39 PM flight fares Opens this date on Aviasales

  3. #3 · Envoy 3969 · sold as American Eagle

    10:06 PM → 12:54 AM2h 48m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    79%

    chance on time

    On time (history)
    84%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 84% of the time (44 flights, Jun 2025 to May 2026).
    • Never cancelled in 44 scheduled flights.
    • Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
    • Short track record (44 flights), so its score leans on the airline's record at this hour.

    Limited track record · 44 flights

    Find 10:06 PM flight fares Opens this date on Aviasales

  4. #4 · Frontier 3523

    9:14 AM → 12:06 PM2h 52m nonstop

    Local times, typical schedule. Last flown 2026-05-18.

    79%

    chance on time

    On time (history)
    83%
    Cancelled
    0.0%
    Avg arrival delay
    18 min
    • Arrived on time 83% of the time (70 flights, Jun 2025 to May 2026).
    • Never cancelled in 70 scheduled flights.
    • Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
    • 69% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 70 flights

    Find Frontier 3523 fares Opens this date on Aviasales

  5. #5 · Envoy 4115 · sold as American Eagle

    7:56 PM → 10:50 PM2h 54m nonstop

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

    78%

    chance on time

    On time (history)
    77%
    Cancelled
    0.0%
    Avg arrival delay
    12 min
    • Arrived on time 77% of the time (209 flights, Jun 2025 to May 2026).
    • Never cancelled in 209 scheduled flights.
    • Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
    • 50% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 209 flights

    Find 7:56 PM flight fares Opens this date on Aviasales

  6. #6 · Envoy 3757 · sold as American Eagle

    9:55 PM → 12:59 AM3h 04m nonstop

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

    75%

    chance on time

    On time (history)
    77%
    Cancelled
    1.1%
    Avg arrival delay
    10 min
    • Arrived on time 77% of the time (92 flights, Jun 2025 to May 2026).
    • Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
    • 51% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 92 flights

    Find 9:55 PM flight fares Opens this date on Aviasales

  7. #7 · Envoy 3405 · sold as American Eagle

    4:06 PM → 7:06 PM3h 00m nonstop

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

    72%

    chance on time

    On time (history)
    76%
    Cancelled
    3.3%
    Avg arrival delay
    10 min
    • Arrived on time 76% of the time (29 flights, Jun 2025 to May 2026).
    • Cancelled 3.3% of the time (1 of 30).
    • Leaves in this route's least on-time window (3 to 6 PM: 67% on time; Before 9 AM: 91%).
    • Departs inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.

    Limited track record · 29 flights

    Find 4:06 PM flight fares Opens this date on Aviasales

  8. #8 · Frontier 1443

    4:41 PM → 7:33 PM2h 52m nonstop

    Local times, typical schedule. Last flown 2026-04-09.

    60%

    chance on time

    On time (history)
    57%
    Cancelled
    4.7%
    Avg arrival delay
    37 min
    • Arrived on time 57% of the time (61 flights, Jun 2025 to May 2026).
    • Cancelled 4.7% of the time (3 of 64).
    • Leaves in this route's least on-time window (3 to 6 PM: 67% on time; Before 9 AM: 91%).
    • Departs inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 61 flights

    Find Frontier 1443 fares Opens this date on Aviasales

  9. #9 · Frontier 1963

    8:58 PM → 11:58 PM2h 57m nonstop

    Local times, typical schedule. Last flown 2026-04-11.

    58%

    chance on time

    On time (history)
    22%
    Cancelled
    0.0%
    Avg arrival delay
    51 min
    • Arrived on time 22% of the time (9 flights, Jun 2025 to May 2026).
    • Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
    • 70% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (9 flights), so its score leans on the airline's record at this hour.

    Limited track record · 9 flights

    Find Frontier 1963 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Envoy Air (sold as American Eagle)76%

    787 flights · 77% on time as flown · 0.7% cancel

  • American Airlines75%

    76 flights · 79% on time as flown · 1.0% cancel

  • Frontier Airlines70%

    143 flights · 68% on time as flown · 1.5% cancel

On time by departure time

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

  • Before 9 AM91%

    33 flights · avg delay 8 min

  • 9 AM to noon91%

    33 flights · avg delay 25 min

  • Noon to 3 PM74%

    101 flights · avg delay 25 min

  • 3 to 6 PM67%

    272 flights · avg delay 18 min

  • 6 to 9 PM78%

    429 flights · avg delay 12 min

  • After 9 PM78%

    144 flights · avg delay 10 min

Best day: Tuesday (85%). Worst: Sunday (70%).

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
77
F
81
M
76
A
84
M
78
J
63
J
65
A
60
S
76
O
86
N
86
D
79

What delays this route

  • Late-arriving aircraft53%
  • Air traffic control and airport volume25%
  • Airline (crew, maintenance, boarding)17%
  • Severe weather5%

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

Finding the most reliable connections from MIA to CVG…

MIA to CVG questions

What time of day is best to fly MIA to CVG?
Before 9 AM: 91% of flights arrived on time, against 67% for departures 3 to 6 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 MIA to CVG?
Envoy, with a season-adjusted 76% chance of operating and arriving on time over 787 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 MIA to CVG?
August (60% on time); the best was October (86%), 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 MIA

Live status: FAA delays and ground stops