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ATIS Alerts Smart Flight Search

Find the flight least likely to be delayed

Beta

We rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.

DTW → MIA

Detroit to Miami: 1,832 nonstop flights a year

On time (12 months)

80%

Cancelled

1.4%

avg delay 14 min

Best time to leave

Before 9 AM

88% on time vs 68% 3 to 6 PM

Most reliable airline

American

87% chance on time

Check DTW to MIA fares

Lowest nonstop fare seen in the next two months: $183 (American 1020 on 2026-10-18). 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 1020

    6:00 AM → 9:14 AM3h 09m nonstop

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

    89%

    chance on time

    On time (history)
    90%
    Cancelled
    1.4%
    Avg arrival delay
    9 min
    • Arrived on time 90% of the time (359 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 68%).
    • Departs outside DTW's trouble window (1 PM to 7 PM, when 64% of its 28 ground stops and delay programs started).

    Strong track record · 359 flights

    Find American 1020 fares Opens this date on Aviasales

  2. #2 · Spirit 2080

    5:20 AM → 8:19 AM2h 59m nonstop

    Local times, typical schedule. Last flown 2026-04-14.

    85%

    chance on time

    On time (history)
    94%
    Cancelled
    8.8%
    Avg arrival delay
    7 min
    • Arrived on time 94% of the time (31 flights, Jun 2025 to May 2026).
    • Cancelled 8.8% of the time (3 of 34).
    • Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 68%).
    • Departs outside DTW's trouble window (1 PM to 7 PM, when 64% of its 28 ground stops and delay programs started).

    Limited track record · 31 flights

    Find Spirit 2080 fares Opens this date on Aviasales

  3. #3 · Delta 1468

    7:00 AM → 10:15 AM3h 05m nonstop

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

    82%

    chance on time

    On time (history)
    83%
    Cancelled
    1.2%
    Avg arrival delay
    10 min
    • Arrived on time 83% of the time (335 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 68%).
    • Departs outside DTW's trouble window (1 PM to 7 PM, when 64% of its 28 ground stops and delay programs started).

    Strong track record · 335 flights

    Find Delta 1468 fares Opens this date on Aviasales

  4. #4 · Envoy 3351 · sold as American Eagle

    6:00 PM → 9:09 PM3h 09m nonstop

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

    74%

    chance on time

    On time (history)
    71%
    Cancelled
    0.0%
    Avg arrival delay
    21 min
    • Arrived on time 71% of the time (56 flights, Jun 2025 to May 2026).
    • Never cancelled in 56 scheduled flights.
    • Departs inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.
    • 74% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 56 flights

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

  5. #5 · Delta 866

    1:59 PM → 5:08 PM3h 09m nonstop

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

    74%

    chance on time

    On time (history)
    74%
    Cancelled
    0.9%
    Avg arrival delay
    15 min
    • Arrived on time 74% of the time (230 flights, Jun 2025 to May 2026).
    • Departs inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.
    • Lands inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.

    Strong track record · 230 flights

    Find Delta 866 fares Opens this date on Aviasales

  6. #6 · Delta 2548

    6:10 PM → 9:18 PM3h 08m nonstop

    Local times, typical schedule. Last flown 2026-05-06.

    71%

    chance on time

    On time (history)
    71%
    Cancelled
    0.3%
    Avg arrival delay
    18 min
    • Arrived on time 71% of the time (327 flights, Jun 2025 to May 2026).
    • Departs inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.

    Strong track record · 327 flights

    Find Delta 2548 fares Opens this date on Aviasales

  7. #7 · Spirit 998

    4:50 PM → 7:53 PM3h 03m nonstop

    Local times, typical schedule. Last flown 2026-04-14.

    71%

    chance on time

    On time (history)
    69%
    Cancelled
    2.3%
    Avg arrival delay
    17 min
    • Arrived on time 69% of the time (85 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 68% on time; Before 9 AM: 88%).
    • Departs inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 85 flights

    Find Spirit 998 fares Opens this date on Aviasales

  8. #8 · Frontier 1835

    12:02 PM → 3:10 PM3h 08m nonstop

    Local times, typical schedule. Last flown 2026-04-19.

    69%

    chance on time

    On time (history)
    68%
    Cancelled
    1.6%
    Avg arrival delay
    30 min
    • Arrived on time 68% of the time (62 flights, Jun 2025 to May 2026).
    • Departs outside DTW's trouble window (1 PM to 7 PM, when 64% of its 28 ground stops and delay programs started).
    • Lands inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 62 flights

    Find Frontier 1835 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • American Airlines87%

    394 flights · 90% on time as flown · 1.5% cancel

  • Spirit Airlines78%

    313 flights · 80% on time as flown · 2.6% cancel

  • Delta Air Lines76%

    991 flights · 77% on time as flown · 1.0% cancel

  • Envoy Air (sold as American Eagle)76%

    60 flights · 72% on time as flown · 1.0% cancel

  • Frontier Airlines74%

    64 flights · 67% on time as flown · 1.5% cancel

On time by departure time

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

  • Before 9 AM88%

    895 flights · avg delay 9 min

  • Noon to 3 PM73%

    410 flights · avg delay 18 min

  • 3 to 6 PM68%

    118 flights · avg delay 30 min

  • 6 to 9 PM72%

    371 flights · avg delay 18 min

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

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