Historical on-time performance
Buffalo to Washington
283 miData through Dec 2025Source: US DOT · BTS
Flights on BUF–IAD arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled1.4%of scheduled flights
based on 72 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time79%Medianon timep9055 minCancel1.4%Flights72
Why flights run late
Delay causes
- Airline45%
- Weather2%
- Air traffic (NAS)3%
- Late aircraft50%
- 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 BUF → IAD
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best day of week
On-time rates are fairly even by day on this route — ranging from 85% to 90% on time.
- Thursdays90% on time · p90 10 min · 51 flights · limited
- Fridays88% on time · p90 40 min · 52 flights · limited
- Wednesdays85% on time · p90 20 min · 52 flights · limited
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