Historical on-time performance
Miami to Raleigh-durham
700 miData through May 2026Source: US DOT · BTS
Flights on MIA–RDU arrive on time 69% of the time over the last 12 months.
On-time rate69%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights
based on 2,002 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesbestOn-time70%Medianon timep9075 minCancel1.5%Flights1,726
- Delta Air LinesOn-time61%Medianon timep90120 minCancel2.5%Flights276
Why flights run late
Delay causes
- Airline33%
- Weather8%
- Air traffic (NAS)10%
- Late aircraft50%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline18%
- Weather76%
- Air traffic (NAS)6%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 33 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MIA → RDU
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 89% on time.
- Mornings89% on time · p90 10 min · 1,393 flights
- Middays74% on time · p90 65 min · 405 flights
- Evenings67% on time · p90 80 min · 2,389 flights
- Afternoons64% on time · p90 85 min · 1,651 flights
- Overnights63% on time · p90 75 min · 1,368 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 65% to 76% on time.
- Tuesdays76% on time · p90 65 min · 967 flights
- Mondays73% on time · p90 65 min · 1,042 flights
- Wednesdays73% on time · p90 60 min · 955 flights
- Thursdays71% on time · p90 60 min · 1,048 flights
- Saturdays69% on time · p90 70 min · 1,052 flights
- Fridays66% on time · p90 80 min · 1,057 flights
- Sundays65% on time · p90 80 min · 1,085 flights
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