Historical on-time performance
Raleigh-durham to Houston
Flights on RDU–IAH arrive on time 85% of the time over the last 12 months.
based on 719 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time85%Medianon timep9030 minCancel1.0%Flights719
Why flights run late
Delay causes
- Airline31%
- Weather5%
- Air traffic (NAS)45%
- Late aircraft19%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline14%
- Weather86%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 7 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 RDU → IAH
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 64% to 88% on time.
- Mornings88% on time · p90 15 min · 1,198 flights
- Middays82% on time · p90 30 min · 145 flights · limited
- Afternoons79% on time · p90 45 min · 678 flights
- Evenings64% on time · p90 85 min · 594 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 84% on time.
- Tuesdays84% on time · p90 30 min · 358 flights
- Saturdays83% on time · p90 45 min · 306 flights
- Wednesdays81% on time · p90 30 min · 348 flights
- Fridays80% on time · p90 40 min · 399 flights
- Sundays78% on time · p90 40 min · 397 flights
- Thursdays77% on time · p90 40 min · 416 flights
- Mondays76% on time · p90 60 min · 408 flights
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