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Route on-time record

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

Cincinnati / Covington (Cincinnati Northern Kentucky International Airport) to Miami (Miami International Airport). 1,012 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 0.8% were cancelled. The most reliable flight number was Envoy 3553 at 6:00 AM.

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

CVG → MIA

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

On time (12 months)

79%

Cancelled

0.8%

avg delay 17 min

Best time to leave

Before 9 AM

87% on time vs 51% 3 to 6 PM

Most reliable airline

Envoy

80% chance on time

Check CVG to MIA fares

Lowest nonstop fare seen in the next two months: $403 (American 3638 on 2026-10-27). 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 3553 · sold as American Eagle

    6:00 AM → 8:38 AM2h 38m nonstop

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

    93%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (44 flights, Jun 2025 to May 2026).
    • Never cancelled in 44 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 51%).
    • Short track record (44 flights), so its score leans on the airline's record at this hour.

    Limited track record · 44 flights

    Find 6:00 AM flight fares Opens this date on Aviasales

  2. #2 · Envoy 3638 · sold as American Eagle

    7:15 AM → 9:53 AM2h 38m nonstop

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

    85%

    chance on time

    On time (history)
    85%
    Cancelled
    0.6%
    Avg arrival delay
    13 min
    • Arrived on time 85% of the time (338 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 51%).

    Strong track record · 338 flights

    Find 7:15 AM flight fares Opens this date on Aviasales

  3. #3 · Envoy 3618 · sold as American Eagle

    5:30 AM → 8:10 AM2h 40m nonstop

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

    85%

    chance on time

    On time (history)
    86%
    Cancelled
    1.3%
    Avg arrival delay
    7 min
    • Arrived on time 86% of the time (153 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 51%).

    Moderate track record · 153 flights

    Find 5:30 AM flight fares Opens this date on Aviasales

  4. #4 · Frontier 1964

    1:06 PM → 3:46 PM2h 40m nonstop

    Local times, typical schedule. Last flown 2026-03-30.

    74%

    chance on time

    On time (history)
    80%
    Cancelled
    5.9%
    Avg arrival delay
    8 min
    • Arrived on time 80% of the time (15 flights, Jun 2025 to May 2026).
    • Lands inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
    • Short track record (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find Frontier 1964 fares Opens this date on Aviasales

  5. #5 · Frontier 1444

    5:15 AM → 8:04 AM2h 40m nonstop

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

    73%

    chance on time

    On time (history)
    71%
    Cancelled
    0.8%
    Avg arrival delay
    26 min
    • Arrived on time 71% of the time (124 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 51%).
    • 60% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 124 flights

    Find Frontier 1444 fares Opens this date on Aviasales

  6. #6 · Envoy 3487 · sold as American Eagle

    6:26 PM → 9:04 PM2h 38m nonstop

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

    72%

    chance on time

    On time (history)
    67%
    Cancelled
    0.0%
    Avg arrival delay
    18 min
    • Arrived on time 67% of the time (9 flights, Jun 2025 to May 2026).
    • Short track record (9 flights), so its score leans on the airline's record at this hour.

    Limited track record · 9 flights

    Find 6:26 PM flight fares Opens this date on Aviasales

  7. #7 · Envoy 3554 · sold as American Eagle

    7:36 PM → 10:15 PM2h 39m nonstop

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

    68%

    chance on time

    On time (history)
    66%
    Cancelled
    0.4%
    Avg arrival delay
    22 min
    • Arrived on time 66% of the time (222 flights, Jun 2025 to May 2026).
    • 50% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 222 flights

    Find 7:36 PM flight 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)80%

    786 flights · 81% on time as flown · 0.7% cancel

  • American Airlines76%

    76 flights · 75% on time as flown · 1.0% cancel

  • Frontier Airlines74%

    142 flights · 72% on time as flown · 1.1% cancel

On time by departure time

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

  • Before 9 AM87%

    578 flights · avg delay 10 min

  • 3 to 6 PM51%

    43 flights · avg delay 41 min

  • 6 to 9 PM69%

    336 flights · avg delay 25 min

Best day: Tuesday (84%). Worst: Sunday (74%).

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
74
F
75
M
82
A
86
M
80
J
70
J
69
A
75
S
84
O
83
N
89
D
73

What delays this route

  • Late-arriving aircraft45%
  • Airline (crew, maintenance, boarding)30%
  • Air traffic control and airport volume17%
  • Severe weather8%

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 MIA questions

What time of day is best to fly CVG to MIA?
Before 9 AM: 87% of flights arrived on time, against 51% 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 CVG to MIA?
Envoy, with a season-adjusted 80% chance of operating and arriving on time over 786 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 MIA?
July (69% on time); the best was November (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 CVG

Live status: FAA delays and ground stops