Flights on IAD–DEN arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
Median delayon timetypical arrival
p90 delay35 min1 in 10 flights is worsetail risk
Cancelled0.4%of scheduled flights
based on 3,560 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time77%Medianon timep9035 minCancel0.9%Flights899
- United AirlinesbestOn-time79%Medianon timep9035 minCancel0.3%Flights2,661
Why flights run late
Delay causes
- Airline26%
- Weather8%
- Air traffic (NAS)33%
- Late aircraft33%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
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