Route on-time record
DAL to MIA: most on-time flights and the best time to fly
Dallas (Dallas Love Field) to Miami (Miami International Airport). 417 nonstop flights in Jun 2025 to May 2026, 70% arrived within 15 minutes and 2.2% were cancelled. The most reliable flight number was Southwest 3657 at 7:35 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
DAL → MIA
Dallas to Miami: 417 nonstop flights a year
On time (12 months)
70%
Cancelled
2.2%
avg delay 22 min
Best time to leave
Before 9 AM
85% on time vs 58% 6 to 9 PM
Most reliable airline
Southwest
68% chance on time
Lowest nonstop fare seen in the next two months: $207 (Southwest 187 on 2026-11-07). 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 · Southwest 3657
7:35 AM → 11:10 AM2h 38m nonstop
Local times, typical schedule. Last flown 2026-05-31.
72%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.0%
- Avg arrival delay
- 30 min
- Arrived on time 75% of the time (16 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 85% on time; 6 to 9 PM: 58%).
- Departs outside DAL's trouble window (10 AM to 4 PM, when 67% of its 42 ground stops and delay programs started).
- 55% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 16 flights
Find Southwest 3657 fares Opens this date on Aviasales#2 · Southwest 2406
1:10 PM → 4:50 PM2h 40m nonstop
Local times, typical schedule. Last flown 2026-05-29.
65%
chance on time
- On time (history)
- 67%
- Cancelled
- 0.0%
- Avg arrival delay
- 22 min
- Arrived on time 67% of the time (24 flights, Jun 2025 to May 2026).
- Departs inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 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 (24 flights), so its score leans on the airline's record at this hour.
Limited track record · 24 flights
Find Southwest 2406 fares Opens this date on Aviasales#3 · Southwest 2946
12:30 PM → 4:05 PM2h 35m nonstop
Local times, typical schedule. Last flown 2026-05-30.
63%
chance on time
- On time (history)
- 50%
- Cancelled
- 0.0%
- Avg arrival delay
- 28 min
- Arrived on time 50% of the time (8 flights, Jun 2025 to May 2026).
- Departs inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 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 (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 2946 fares Opens this date on Aviasales#4 · Southwest 1061
12:40 PM → 4:15 PM2h 35m nonstop
Local times, typical schedule. Last flown 2026-04-06.
60%
chance on time
- On time (history)
- 54%
- Cancelled
- 0.0%
- Avg arrival delay
- 33 min
- Arrived on time 54% of the time (28 flights, Jun 2025 to May 2026).
- Departs inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 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 (28 flights), so its score leans on the airline's record at this hour.
Limited track record · 28 flights
Find Southwest 1061 fares Opens this date on Aviasales#5 · Southwest 1347
1:55 PM → 5:30 PM2h 35m nonstop
Local times, typical schedule. Last flown 2026-05-27.
55%
chance on time
- On time (history)
- 33%
- Cancelled
- 6.3%
- Avg arrival delay
- 56 min
- Arrived on time 33% of the time (15 flights, Jun 2025 to May 2026).
- Departs inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 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 (15 flights), so its score leans on the airline's record at this hour.
Limited track record · 15 flights
Find Southwest 1347 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines68%
417 flights · 70% on time as flown · 2.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM85%
53 flights · avg delay 9 min
- 9 AM to noon83%
69 flights · avg delay 9 min
- Noon to 3 PM61%
152 flights · avg delay 28 min
- 3 to 6 PM72%
81 flights · avg delay 29 min
- 6 to 9 PM58%
62 flights · avg delay 24 min
Best day: Friday (76%). Worst: Monday (69%).
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.
What delays this route
- Airline (crew, maintenance, boarding)37%
- Late-arriving aircraft35%
- Air traffic control and airport volume23%
- Severe weather3%
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
DAL to MIA questions
- What time of day is best to fly DAL to MIA?
- Before 9 AM: 85% of flights arrived on time, against 58% 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 DAL to MIA?
- Southwest, with a season-adjusted 68% chance of operating and arriving on time over 417 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 DAL to MIA?
- May (61% on time); the best was October (86%), 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 DAL
- MIA to DAL (return)
- DAL to HOU 74%
- DAL to ATL 79%
- DAL to DEN 69%
- DAL to PHX 76%
- DAL to LAS 76%
- DAL to SAT 79%
- DAL to MCO 71%
- DAL to BNA 73%
- DAL to AUS 78%
- DAL to MSY 76%
- DAL to MDW 71%
- DAL to MCI 76%
Live status: FAA delays and ground stops