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Route on-time record

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

Washington (Ronald Reagan Washington National Airport) to Miami (Miami International Airport). 3,959 nonstop flights in Jun 2025 to May 2026, 75% arrived within 15 minutes and 2.3% were cancelled. The most reliable flight number was American 1178 at 5:00 AM.

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

DCA → MIA

Washington to Miami: 3,959 nonstop flights a year

On time (12 months)

75%

Cancelled

2.3%

avg delay 21 min

Best time to leave

Before 9 AM

89% on time vs 61% 6 to 9 PM

Most reliable airline

American

75% chance on time

Check DCA to MIA fares

Lowest nonstop fare seen in the next two months: $154 (American 1556 on 2026-10-21). 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 1178

    5:00 AM → 7:45 AM2h 45m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2344; its record covers all of them.

    90%

    chance on time

    On time (history)
    93%
    Cancelled
    2.8%
    Avg arrival delay
    7 min
    • Arrived on time 93% of the time (350 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 89% on time; 6 to 9 PM: 61%).
    • Departs outside DCA's trouble window (1 PM to 7 PM, when 63% of its 194 ground stops and delay programs started).

    Strong track record · 350 flights

    Find American 1178 fares Opens this date on Aviasales

  2. #2 · American 2303

    7:00 AM → 9:54 AM2h 54m nonstop

    Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 1058; its record covers all of them.

    89%

    chance on time

    On time (history)
    95%
    Cancelled
    1.4%
    Avg arrival delay
    9 min
    • Arrived on time 95% of the time (73 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 89% on time; 6 to 9 PM: 61%).
    • Departs outside DCA's trouble window (1 PM to 7 PM, when 63% of its 194 ground stops and delay programs started).

    Moderate track record · 73 flights

    Find American 2303 fares Opens this date on Aviasales

  3. #3 · American 401

    6:00 AM → 8:45 AM2h 45m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1232; its record covers all of them.

    88%

    chance on time

    On time (history)
    90%
    Cancelled
    2.2%
    Avg arrival delay
    15 min
    • Arrived on time 90% of the time (347 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 89% on time; 6 to 9 PM: 61%).
    • Departs outside DCA's trouble window (1 PM to 7 PM, when 63% of its 194 ground stops and delay programs started).
    • 69% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 347 flights

    Find American 401 fares Opens this date on Aviasales

  4. #4 · American 1173

    9:40 AM → 12:25 PM2h 45m nonstop

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

    82%

    chance on time

    On time (history)
    81%
    Cancelled
    1.4%
    Avg arrival delay
    32 min
    • Arrived on time 81% of the time (72 flights, Jun 2025 to May 2026).
    • Departs outside DCA's trouble window (1 PM to 7 PM, when 63% of its 194 ground stops and delay programs started).
    • 54% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 72 flights

    Find American 1173 fares Opens this date on Aviasales

  5. #5 · American 422

    8:21 AM → 11:20 AM2h 59m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1711; its record covers all of them.

    81%

    chance on time

    On time (history)
    81%
    Cancelled
    0.4%
    Avg arrival delay
    12 min
    • Arrived on time 81% of the time (237 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 89% on time; 6 to 9 PM: 61%).
    • Departs outside DCA's trouble window (1 PM to 7 PM, when 63% of its 194 ground stops and delay programs started).

    Strong track record · 237 flights

    Find American 422 fares Opens this date on Aviasales

  6. #6 · American 3319

    10:00 AM → 12:51 PM2h 51m nonstop

    Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 939; its record covers all of them.

    76%

    chance on time

    On time (history)
    80%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 80% of the time (98 flights, Jun 2025 to May 2026).
    • Never cancelled in 98 scheduled flights.
    • Departs outside DCA's trouble window (1 PM to 7 PM, when 63% of its 194 ground stops and delay programs started).

    Moderate track record · 98 flights

    Find American 3319 fares Opens this date on Aviasales

  7. #7 · American 1627

    11:50 AM → 2:35 PM2h 45m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2911; its record covers all of them.

    75%

    chance on time

    On time (history)
    74%
    Cancelled
    2.3%
    Avg arrival delay
    23 min
    • Arrived on time 74% of the time (128 flights, Jun 2025 to May 2026).
    • Departs outside DCA's trouble window (1 PM to 7 PM, when 63% of its 194 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.
    • 59% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 128 flights

    Find American 1627 fares Opens this date on Aviasales

  8. #8 · American 1683

    11:39 AM → 2:30 PM2h 51m nonstop

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

    74%

    chance on time

    On time (history)
    77%
    Cancelled
    0.0%
    Avg arrival delay
    26 min
    • Arrived on time 77% of the time (44 flights, Jun 2025 to May 2026).
    • Never cancelled in 44 scheduled flights.
    • Departs outside DCA's trouble window (1 PM to 7 PM, when 63% of its 194 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.

    Limited track record · 44 flights

    Find American 1683 fares Opens this date on Aviasales

  9. #9 · American 2019

    5:48 PM → 8:47 PM2h 59m nonstop

    Local times, typical schedule. Last flown 2026-05-19.

    69%

    chance on time

    On time (history)
    77%
    Cancelled
    2.3%
    Avg arrival delay
    22 min
    • Arrived on time 77% of the time (43 flights, Jun 2025 to May 2026).
    • Departs inside DCA's trouble window: 63% of its 194 ground stops and delay programs started between 1 PM and 7 PM.
    • 67% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (43 flights), so its score leans on the airline's record at this hour.

    Limited track record · 43 flights

    Find American 2019 fares Opens this date on Aviasales

  10. #10 · Delta 2888

    2:47 PM → 5:37 PM2h 50m nonstop

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

    69%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 87% of the time (23 flights, Jun 2025 to May 2026).
    • Departs inside DCA's trouble window: 63% of its 194 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.
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find Delta 2888 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • American Airlines75%

    3,542 flights · 77% on time as flown · 2.5% cancel

  • Delta Air Lines67%

    364 flights · 66% on time as flown · 1.9% cancel

  • Republic Airways (sold as American Eagle, Delta Connection or United Express)65%

    52 flights · 54% on time as flown · 1.7% cancel

On time by departure time

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

  • Before 9 AM89%

    1,370 flights · avg delay 11 min

  • 9 AM to noon79%

    617 flights · avg delay 18 min

  • Noon to 3 PM67%

    699 flights · avg delay 28 min

  • 3 to 6 PM65%

    688 flights · avg delay 30 min

  • 6 to 9 PM61%

    585 flights · avg delay 32 min

Best day: Tuesday (82%). Worst: Sunday (73%).

Smarter routing

Nearby airports that run more on time

  • IAD → FLL 83% chance on time

    Washington Dulles International Airport to Fort Lauderdale Hollywood International Airport · 742 flights a year · 44 mi from your airports · yours: 74%

    Rank flightsFares

  • IAD → MIA 79% chance on time

    Washington Dulles International Airport to Miami International Airport · 668 flights a year · 23 mi from your airports · yours: 74%

    Rank flightsFares

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
79
A
80
M
74
J
70
J
67
A
68
S
77
O
83
N
87
D
79

What delays this route

  • Late-arriving aircraft50%
  • Airline (crew, maintenance, boarding)24%
  • Air traffic control and airport volume19%
  • Severe weather7%

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

DCA to MIA questions

What time of day is best to fly DCA to MIA?
Before 9 AM: 89% of flights arrived on time, against 61% 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 DCA to MIA?
American, with a season-adjusted 75% chance of operating and arriving on time over 3,542 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 DCA to MIA?
July (67% on time); the best was November (87%), 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 DCA

Live status: FAA delays and ground stops