Historical on-time performance
Raleigh-durham to San Francisco
2,400 miData through Dec 2025Source: US DOT · BTS
Flights on RDU–SFO arrive on time 84% of the time over the last 12 months.
On-time rate84%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 880 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time84%Medianon timep9020 minCancel0.0%Flights880
Why flights run late
Delay causes
- Airline24%
- Weather3%
- Air traffic (NAS)34%
- Late aircraft39%
- 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 → SFO
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 — 85% on time.
- Mornings85% on time · p90 20 min · 1,210 flights
- Evenings75% on time · p90 55 min · 985 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 77% to 84% on time.
- Tuesdays84% on time · p90 25 min · 291 flights
- Thursdays83% on time · p90 25 min · 332 flights
- Wednesdays81% on time · p90 35 min · 290 flights
- Mondays80% on time · p90 35 min · 334 flights
- Saturdays80% on time · p90 30 min · 282 flights
- Fridays80% on time · p90 35 min · 334 flights
- Sundays77% on time · p90 40 min · 332 flights
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