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

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

Baltimore (Baltimore/Washington International Thurgood Marshall Airport) to Miami (Miami International Airport). 2,302 nonstop flights in Jun 2025 to May 2026, 74% arrived within 15 minutes and 2.3% were cancelled. The most reliable flight number was American 1183 at 6:00 AM.

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

BWI → MIA

Baltimore to Miami: 2,302 nonstop flights a year

On time (12 months)

74%

Cancelled

2.3%

avg delay 20 min

Best time to leave

Before 9 AM

84% on time vs 61% 3 to 6 PM

Most reliable airline

Envoy

77% chance on time

Check BWI to MIA fares

Lowest nonstop fare seen in the next two months: $42 (Frontier 1665 on 2026-11-23). 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 1183

    6:00 AM → 8:47 AM2h 47m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 716; its record covers all of them.

    81%

    chance on time

    On time (history)
    83%
    Cancelled
    2.3%
    Avg arrival delay
    23 min
    • Arrived on time 83% of the time (419 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 84% on time; 3 to 6 PM: 61%).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).

    Strong track record · 419 flights

    Find American 1183 fares Opens this date on Aviasales

  2. #2 · Envoy 4096 · sold as American Eagle

    7:16 PM → 10:05 PM2h 49m nonstop

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

    78%

    chance on time

    On time (history)
    89%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 89% of the time (44 flights, Jun 2025 to May 2026).
    • Never cancelled in 44 scheduled flights.
    • Departs inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • Short track record (44 flights), so its score leans on the airline's record at this hour.

    Limited track record · 44 flights

    Find 7:16 PM flight fares Opens this date on Aviasales

  3. #3 · American 1619

    6:38 PM → 9:24 PM2h 46m nonstop

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

    76%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    14 min
    • Arrived on time 82% of the time (11 flights, Jun 2025 to May 2026).
    • Departs inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • 54% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find American 1619 fares Opens this date on Aviasales

  4. #4 · Frontier 1049

    11:36 AM → 2:19 PM2h 53m nonstop

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

    76%

    chance on time

    On time (history)
    84%
    Cancelled
    4.2%
    Avg arrival delay
    8 min
    • Arrived on time 84% of the time (45 flights, Jun 2025 to May 2026).
    • Cancelled 4.2% of the time (2 of 48).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 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 · 45 flights

    Find Frontier 1049 fares Opens this date on Aviasales

  5. #5 · Southwest 1217

    8:15 AM → 11:00 AM2h 45m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 2688; its record covers all of them.

    75%

    chance on time

    On time (history)
    78%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 78% of the time (88 flights, Jun 2025 to May 2026).
    • Never cancelled in 88 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 84% on time; 3 to 6 PM: 61%).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).

    Moderate track record · 88 flights

    Find Southwest 1217 fares Opens this date on Aviasales

  6. #6 · American 1931

    11:31 AM → 2:18 PM2h 47m nonstop

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

    75%

    chance on time

    On time (history)
    78%
    Cancelled
    2.6%
    Avg arrival delay
    41 min
    • Arrived on time 78% of the time (36 flights, Jun 2025 to May 2026).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 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.
    • Short track record (36 flights), so its score leans on the airline's record at this hour.

    Limited track record · 36 flights

    Find American 1931 fares Opens this date on Aviasales

  7. #7 · Southwest 1218

    11:55 AM → 2:30 PM2h 35m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 1627; its record covers all of them.

    73%

    chance on time

    On time (history)
    77%
    Cancelled
    1.2%
    Avg arrival delay
    16 min
    • Arrived on time 77% of the time (82 flights, Jun 2025 to May 2026).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 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 · 82 flights

    Find Southwest 1218 fares Opens this date on Aviasales

  8. #8 · Southwest 1780

    6:30 PM → 9:10 PM2h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-30.

    67%

    chance on time

    On time (history)
    67%
    Cancelled
    0.0%
    Avg arrival delay
    24 min
    • Arrived on time 67% of the time (24 flights, Jun 2025 to May 2026).
    • Departs inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.
    • 52% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (24 flights), so its score leans on the airline's record at this hour.

    Limited track record · 24 flights

    Find Southwest 1780 fares Opens this date on Aviasales

  9. #9 · Frontier 1665

    7:27 PM → 10:12 PM2h 54m nonstop

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

    66%

    chance on time

    On time (history)
    67%
    Cancelled
    3.2%
    Avg arrival delay
    30 min
    • Arrived on time 67% of the time (212 flights, Jun 2025 to May 2026).
    • Cancelled 3.2% of the time (7 of 219).
    • Departs inside BWI's trouble window: 81% of its 43 ground stops and delay programs started between 2 PM and 8 PM.

    Strong track record · 212 flights

    Find Frontier 1665 fares Opens this date on Aviasales

  10. #10 · Southwest 2125

    8:20 PM → 11:00 PM2h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3972; its record covers all of them.

    60%

    chance on time

    On time (history)
    64%
    Cancelled
    2.8%
    Avg arrival delay
    21 min
    • Arrived on time 64% of the time (70 flights, Jun 2025 to May 2026).
    • Departs outside BWI's trouble window (2 PM to 8 PM, when 81% of its 43 ground stops and delay programs started).
    • 50% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 70 flights

    Find Southwest 2125 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)77%

    118 flights · 81% on time as flown · 1.3% cancel

  • American Airlines76%

    685 flights · 79% on time as flown · 2.6% cancel

  • Southwest Airlines70%

    1,182 flights · 72% on time as flown · 2.1% cancel

  • Frontier Airlines70%

    268 flights · 71% on time as flown · 3.0% cancel

  • Spirit Airlines66%

    49 flights · 57% on time as flown · 2.7% cancel

On time by departure time

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

  • Before 9 AM84%

    808 flights · avg delay 14 min

  • 9 AM to noon80%

    258 flights · avg delay 11 min

  • Noon to 3 PM75%

    297 flights · avg delay 21 min

  • 3 to 6 PM61%

    251 flights · avg delay 32 min

  • 6 to 9 PM63%

    676 flights · avg delay 28 min

Best day: Tuesday (79%). Worst: Sunday (70%).

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 · 66 mi from your airports · yours: 72%

    Rank flightsFares

  • IAD → MIA 79% chance on time

    Washington Dulles International Airport to Miami International Airport · 668 flights a year · 45 mi from your airports · yours: 72%

    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
73
F
79
M
76
A
82
M
74
J
66
J
59
A
64
S
80
O
84
N
81
D
72

What delays this route

  • Late-arriving aircraft35%
  • Airline (crew, maintenance, boarding)32%
  • Air traffic control and airport volume25%
  • 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

BWI to MIA questions

What time of day is best to fly BWI to MIA?
Before 9 AM: 84% of flights arrived on time, against 61% 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 BWI to MIA?
Envoy, with a season-adjusted 77% chance of operating and arriving on time over 118 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 BWI to MIA?
July (59% on time); the best was October (84%), 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 BWI

Live status: FAA delays and ground stops