Skip to content

All Products

Aviation Intelligence

Alerts & Airspace

Free Pilot Tools & Widgets

RC Aviation

Games & Learning

Weather Research & More

Pilot Resources

My Airports

Your shortcuts, saved on this device. Search to add an airport.

No airports saved yet. Add the fields you visit most.

Ask ATIS

Route on-time record

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

Miami (Miami International Airport) to Key West (Key West International Airport). 1,246 nonstop flights in Jun 2025 to May 2026, 86% arrived within 15 minutes and 0.6% were cancelled. The most reliable flight number was Envoy 3581 at 9:56 PM.

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

Find me the most reliable flights fromtoonreturning(optional)

MIA → EYW

Miami to Key West: 1,246 nonstop flights a year

On time (12 months)

86%

Cancelled

0.6%

avg delay 9 min

Best time to leave

After 9 PM

95% on time vs 77% noon to 3 PM

Most reliable airline

Envoy

86% chance on time

Check MIA to EYW fares

Lowest nonstop fare seen in the next two months: $298 (American 3255 on 2026-10-22). 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 3581 · sold as American Eagle

    9:56 PM → 10:58 PM1h 02m nonstop

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

    93%

    chance on time

    On time (history)
    98%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 98% 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 (After 9 PM: 95% on time; Noon to 3 PM: 77%).
    • Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).

    Limited track record · 44 flights

    Find 9:56 PM flight fares Opens this date on Aviasales

  2. #2 · Envoy 3515 · sold as American Eagle

    9:55 AM → 10:56 AM1h 01m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Envoy 3580; its record covers all of them.

    90%

    chance on time

    On time (history)
    94%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 94% of the time (47 flights, Jun 2025 to May 2026).
    • Never cancelled in 47 scheduled flights.
    • Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).

    Limited track record · 47 flights

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

  3. #3 · Envoy 3719 · sold as American Eagle

    3:30 PM → 4:30 PM1h 00m nonstop

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

    88%

    chance on time

    On time (history)
    94%
    Cancelled
    2.1%
    Avg arrival delay
    3 min
    • Arrived on time 94% of the time (47 flights, Jun 2025 to May 2026).
    • 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 · 47 flights

    Find 3:30 PM flight fares Opens this date on Aviasales

  4. #4 · Envoy 3517 · sold as American Eagle

    6:11 PM → 7:10 PM59m nonstop

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

    87%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
    • 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 · 11 flights

    Find 6:11 PM flight fares Opens this date on Aviasales

  5. #5 · Envoy 3518 · sold as American Eagle

    12:04 PM → 1:07 PM1h 03m nonstop

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

    81%

    chance on time

    On time (history)
    89%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 89% of the time (9 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (Noon to 3 PM: 77% on time; After 9 PM: 95%).
    • Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).

    Limited track record · 9 flights

    Find 12:04 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)86%

    1,160 flights · 87% on time as flown · 0.6% cancel

On time by departure time

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

  • 9 AM to noon90%

    302 flights · avg delay 8 min

  • Noon to 3 PM77%

    288 flights · avg delay 12 min

  • 3 to 6 PM84%

    247 flights · avg delay 7 min

  • 6 to 9 PM87%

    302 flights · avg delay 9 min

  • After 9 PM95%

    107 flights · avg delay 2 min

Best day: Wednesday (89%). Worst: Saturday (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
79
F
82
M
80
A
90
M
84
J
77
J
85
A
82
S
89
O
93
N
87
D
84

What delays this route

  • Late-arriving aircraft44%
  • Air traffic control and airport volume25%
  • Airline (crew, maintenance, boarding)18%
  • Severe weather13%

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 EYW…

MIA to EYW questions

What time of day is best to fly MIA to EYW?
After 9 PM: 95% of flights arrived on time, against 77% for departures noon to 3 PM.
Which airline is most on time from MIA to EYW?
Envoy, with a season-adjusted 86% chance of operating and arriving on time over 1,160 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 EYW?
June (77% on time); the best was October (93%), 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