Flights on IAD–SFO arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
Median delayon timetypical arrival
p90 delay45 min1 in 10 flights is worsetail risk
Cancelled0.5%of scheduled flights
based on 2,850 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time79%Medianon timep9040 minCancel0.5%Flights2,589
- Alaska AirlinesOn-time74%Medianon timep9060 minCancel0.8%Flights261
Why flights run late
Delay causes
- Airline33%
- Weather9%
- Air traffic (NAS)27%
- Late aircraft31%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
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