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Route on-time record

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

Miami (Miami International Airport) to San Diego (San Diego International Airport). 588 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 1.0% were cancelled. The most reliable flight number was American 2979 at 8:55 AM.

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MIA → SAN

Miami to San Diego: 588 nonstop flights a year

On time (12 months)

76%

Cancelled

1.0%

avg delay 13 min

Best time to leave

Before 9 AM

91% on time vs 68% 6 to 9 PM

Most reliable airline

American

75% chance on time

Check MIA to SAN 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 · American 2979

    8:55 AM → 11:18 AM5h 23m nonstop

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

    84%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 91% 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; 6 to 9 PM: 68%).
    • Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
    • Lands inside SAN's trouble window: 66% of its 166 ground stops and delay programs started between 6 AM and noon.

    Limited track record · 11 flights

    Find American 2979 fares Opens this date on Aviasales

  2. #2 · American 3303

    9:19 AM → 11:53 AM5h 34m nonstop

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

    80%

    chance on time

    On time (history)
    73%
    Cancelled
    0.0%
    Avg arrival delay
    21 min
    • Arrived on time 73% 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).
    • Lands inside SAN's trouble window: 66% of its 166 ground stops and delay programs started between 6 AM and noon.

    Limited track record · 44 flights

    Find American 3303 fares Opens this date on Aviasales

  3. #3 · American 2463

    7:53 PM → 10:20 PM5h 27m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2578; its record covers all of them.

    62%

    chance on time

    On time (history)
    55%
    Cancelled
    0.0%
    Avg arrival delay
    17 min
    • Arrived on time 55% of the time (55 flights, Jun 2025 to May 2026).
    • Never cancelled in 55 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 68% on time; Before 9 AM: 91%).
    • 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 · 55 flights

    Find American 2463 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • American Airlines75%

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

On time by departure time

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

  • Before 9 AM91%

    75 flights · avg delay 3 min

  • 9 AM to noon90%

    148 flights · avg delay 9 min

  • 6 to 9 PM68%

    352 flights · avg delay 18 min

Best day: Wednesday (73%). Worst: Thursday (62%).

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
68
F
75
M
70
A
76
M
54
J
52
J
59
A
68
S
49
O
76
N
79
D
74

What delays this route

  • Air traffic control and airport volume35%
  • Late-arriving aircraft32%
  • Airline (crew, maintenance, boarding)26%
  • Severe weather6%

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 SAN…

MIA to SAN questions

What time of day is best to fly MIA to SAN?
Before 9 AM: 91% of flights arrived on time, against 68% for departures 6 to 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 MIA to SAN?
American, with a season-adjusted 75% chance of operating and arriving on time over 588 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 SAN?
September (49% on time); the best was November (79%), 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.

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Live status: FAA delays and ground stops