Route on-time record
MIA to DAL: most on-time flights and the best time to fly
Miami (Miami International Airport) to Dallas (Dallas Love Field). 418 nonstop flights in Jun 2025 to May 2026, 74% arrived within 15 minutes and 0.7% were cancelled. The most reliable flight number was Southwest 1627 at 3:15 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
MIA → DAL
Miami to Dallas: 418 nonstop flights a year
On time (12 months)
74%
Cancelled
0.7%
avg delay 17 min
Best time to leave
Before 9 AM
96% on time vs 48% 3 to 6 PM
Most reliable airline
Southwest
73% chance on time
Lowest nonstop fare seen in the next two months: $187 (Southwest 2512 on 2026-11-11). 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 1627
3:15 PM → 5:30 PM3h 15m nonstop
Local times, typical schedule. Last flown 2026-04-06.
73%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 30 min
- Arrived on time 73% of the time (15 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 48% on time; Before 9 AM: 96%).
- Departs inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
- 84% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 15 flights
Find Southwest 1627 fares Opens this date on Aviasales#2 · Southwest 2560
3:35 PM → 5:50 PM3h 15m nonstop
Local times, typical schedule. Last flown 2026-04-01.
73%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 75% of the time (8 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 48% on time; Before 9 AM: 96%).
- Departs 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 2560 fares Opens this date on Aviasales#3 · Southwest 1217
12:10 PM → 2:25 PM3h 15m nonstop
Local times, typical schedule. Last flown 2026-05-27.
72%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 18 min
- Arrived on time 73% of the time (15 flights, Jun 2025 to May 2026).
- Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
- Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 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 1217 fares Opens this date on Aviasales#4 · Southwest 2565
1:00 PM → 3:10 PM3h 10m nonstop
Local times, typical schedule. Last flown 2026-05-30.
72%
chance on time
- On time (history)
- 68%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 68% of the time (31 flights, Jun 2025 to May 2026).
- Never cancelled in 31 scheduled flights.
- Departs inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
- Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.
Limited track record · 31 flights
Find Southwest 2565 fares Opens this date on Aviasales#5 · Southwest 3554
4:45 PM → 6:55 PM3h 10m nonstop
Local times, typical schedule. Last flown 2026-05-30.
59%
chance on time
- On time (history)
- 25%
- Cancelled
- 0.0%
- Avg arrival delay
- 48 min
- Arrived on time 25% of the time (8 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 48% on time; Before 9 AM: 96%).
- Departs inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
- 52% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 8 flights
Find Southwest 3554 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines73%
418 flights · 74% on time as flown · 0.7% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM96%
93 flights · avg delay 5 min
- 9 AM to noon84%
119 flights · avg delay 8 min
- Noon to 3 PM67%
113 flights · avg delay 16 min
- 3 to 6 PM48%
71 flights · avg delay 41 min
Best day: Tuesday (85%). Worst: Saturday (60%).
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
- Late-arriving aircraft56%
- Air traffic control and airport volume21%
- Airline (crew, maintenance, boarding)20%
- Severe weather2%
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
MIA to DAL questions
- What time of day is best to fly MIA to DAL?
- Before 9 AM: 96% of flights arrived on time, against 48% 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 MIA to DAL?
- Southwest, with a season-adjusted 73% chance of operating and arriving on time over 418 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 DAL?
- May (58% on time); the best was November (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 MIA
- DAL to MIA (return)
- MIA to ATL 73%
- MIA to LGA 67%
- MIA to DFW 73%
- MIA to JFK 71%
- MIA to ORD 71%
- MIA to EWR 72%
- MIA to DCA 75%
- MIA to MCO 72%
- MIA to IAH 76%
- MIA to CLT 78%
- MIA to BOS 69%
- MIA to LAX 75%
Live status: FAA delays and ground stops