Route on-time record

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

Miami (Miami International Airport) to Raleigh/Durham (Raleigh-Durham International Airport). 2,370 nonstop flights in Jun 2025 to May 2026, 71% arrived within 15 minutes and 1.6% were cancelled. The most reliable flight number was American 2644 at 8:21 AM.

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

MIA → RDU

Miami to Raleigh/Durham: 2,370 nonstop flights a year

On time (12 months)

71%

Cancelled

1.6%

avg delay 23 min

Best time to leave

Before 9 AM

87% on time vs 62% after 9 PM

Most reliable airline

Envoy

80% chance on time

Check MIA to RDU fares

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 · American 2644
8:21 AM → 10:37 AM2h 16m nonstop
Local times, typical schedule. Last flown 2026-05-20.
85%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
3 min
- Arrived on time 91% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; After 9 PM: 62%).
- Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
Limited track record · 44 flights
Find American 2644 fares Opens this date on Aviasales
#2 · American 2340
8:37 AM → 10:50 AM2h 13m nonstop
Local times, typical schedule. Last flown 2026-04-06.
83%
chance on time
On time (history)
85%
Cancelled
2.5%
Avg arrival delay
14 min
- Arrived on time 85% of the time (233 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; After 9 PM: 62%).
- Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
Strong track record · 233 flights
Find American 2340 fares Opens this date on Aviasales
#3 · American 2405
8:07 AM → 10:20 AM2h 13m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
2 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; After 9 PM: 62%).
- Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find American 2405 fares Opens this date on Aviasales
#4 · Frontier 3322
6:00 AM → 7:24 AM2h 18m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
On time (history)
77%
Cancelled
1.7%
Avg arrival delay
17 min
- Arrived on time 77% of the time (172 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; After 9 PM: 62%).
- Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
- 56% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 172 flights
Find Frontier 3322 fares Opens this date on Aviasales
#5 · American 638
7:20 PM → 9:37 PM2h 17m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 1381; its record covers all of them.
69%
chance on time
On time (history)
71%
Cancelled
2.6%
Avg arrival delay
18 min
- Arrived on time 71% of the time (184 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).
Moderate track record · 184 flights
Find American 638 fares Opens this date on Aviasales
#6 · American 2867
4:38 PM → 6:53 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-04-06.
66%
chance on time
On time (history)
68%
Cancelled
2.6%
Avg arrival delay
23 min
- Arrived on time 68% of the time (151 flights, Jun 2025 to May 2026).
- Departs inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 151 flights
Find American 2867 fares Opens this date on Aviasales
#7 · American 1566
9:45 PM → 11:59 PM2h 14m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1286; its record covers all of them.
66%
chance on time
On time (history)
67%
Cancelled
1.5%
Avg arrival delay
21 min
- Arrived on time 67% of the time (511 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (After 9 PM: 62% on time; Before 9 AM: 87%).
- Departs outside MIA's trouble window (1 PM to 7 PM, when 49% of its 45 ground stops and delay programs started).
Strong track record · 511 flights
Find American 1566 fares Opens this date on Aviasales
#8 · American 1891
3:29 PM → 5:41 PM2h 12m nonstop
Local times, typical schedule. Last flown 2026-05-20.
65%
chance on time
On time (history)
64%
Cancelled
0.7%
Avg arrival delay
28 min
- Arrived on time 64% of the time (151 flights, Jun 2025 to May 2026).
- Departs inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 151 flights
Find American 1891 fares Opens this date on Aviasales
#9 · American 2406
2:37 PM → 4:50 PM2h 13m nonstop
Local times, typical schedule. Last flown 2026-05-31.
64%
chance on time
On time (history)
64%
Cancelled
0.0%
Avg arrival delay
54 min
- Arrived on time 64% of the time (11 flights, Jun 2025 to May 2026).
- Departs inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
- Lands inside RDU's trouble window: 57% of its 14 ground stops and delay programs started between 11 AM and 5 PM.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find American 2406 fares Opens this date on Aviasales
#10 · American 2375
4:50 PM → 7:03 PM2h 13m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2105; its record covers all of them.
63%
chance on time
On time (history)
64%
Cancelled
0.0%
Avg arrival delay
34 min
- Arrived on time 64% of the time (53 flights, Jun 2025 to May 2026).
- Never cancelled in 53 scheduled flights.
- Departs inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
- 69% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 53 flights
Find American 2375 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)80%
79 flights · 90% on time as flown · 1.5% cancel
Frontier Airlines74%
175 flights · 77% on time as flown · 1.7% cancel
American Airlines70%
1,726 flights · 71% on time as flown · 1.5% cancel
Republic Airways (sold as American Eagle, Delta Connection or United Express)67%
30 flights · 64% on time as flown · 2.5% cancel
Delta Air Lines63%
360 flights · 63% on time as flown · 1.9% cancel

On time by departure time

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

Before 9 AM87%
366 flights · avg delay 10 min
9 AM to noon86%
156 flights · avg delay 11 min
Noon to 3 PM68%
267 flights · avg delay 30 min
3 to 6 PM64%
564 flights · avg delay 27 min
6 to 9 PM69%
657 flights · avg delay 26 min
After 9 PM62%
360 flights · avg delay 23 min

Best day: Tuesday (77%). Worst: Sunday (66%).

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 aircraft50%
Airline (crew, maintenance, boarding)32%
Air traffic control and airport volume10%
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

MIA to RDU questions

What time of day is best to fly MIA to RDU?: Before 9 AM: 87% of flights arrived on time, against 62% for departures after 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 MIA to RDU?: Envoy, with a season-adjusted 80% chance of operating and arriving on time over 79 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 RDU?: August (59% on time); the best was October (81%), 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.

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