Historical on-time performance
Raleigh-durham to Miami
700 miData through Dec 2025Source: US DOT · BTS
Flights on RDU–MIA arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights
based on 2,143 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Delta Air LinesOn-time82%Medianon timep9040 minCancel0.7%Flights276
- American AirlinesOn-time78%Medianon timep9050 minCancel1.1%Flights1,867
Why flights run late
Delay causes
- Airline39%
- Weather5%
- Air traffic (NAS)13%
- Late aircraft43%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly RDU → MIA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 86% on time.
- Mornings86% on time · p90 20 min · 3,383 flights
- Middays78% on time · p90 40 min · 1,549 flights
- Overnights68% on time · p90 75 min · 91 flights · limited
- Afternoons66% on time · p90 65 min · 364 flights
- Evenings63% on time · p90 90 min · 1,712 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 80% on time.
- Wednesdays80% on time · p90 40 min · 956 flights
- Tuesdays80% on time · p90 50 min · 969 flights
- Mondays77% on time · p90 50 min · 1,025 flights
- Thursdays77% on time · p90 40 min · 1,022 flights
- Saturdays76% on time · p90 45 min · 1,039 flights
- Sundays76% on time · p90 50 min · 1,060 flights
- Fridays75% on time · p90 55 min · 1,029 flights
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