Historical on-time performance
Washington to Rochester
289 miData through May 2026Source: US DOT · BTS
Flights on IAD–ROC arrive on time 62% of the time over the last 12 months.
On-time rate62%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled3.3%of scheduled flights
based on 61 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time62%Medianon timep9070 minCancel3.3%Flights61
Why flights run late
Delay causes
- Airline56%
- Weather0%
- Air traffic (NAS)12%
- Late aircraft32%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather50%
- Air traffic (NAS)50%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 2 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 IAD → ROC
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Evenings are the most reliable time of day to fly this route — 80% on time.
- Evenings80% on time · p90 35 min · 187 flights · limited
- Overnights64% on time · p90 85 min · 145 flights · limited
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