Historical on-time performance
Louisville to Washington
Flights on SDF–IAD arrive on time 97% of the time over the last 12 months.
based on 145 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time97%Medianon timep905 minCancel0.0%Flights145
Why flights run late
Delay causes
- Airline18%
- Weather0%
- Air traffic (NAS)0%
- Late aircraft82%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline50%
- Weather44%
- Air traffic (NAS)6%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 16 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 SDF → IAD
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 92% to 93% on time.
- Mornings93% on time · p90 5 min · 772 flights
- Middays92% on time · p90 10 min · 381 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 86% to 96% on time.
- Tuesdays96% on time · p90 5 min · 165 flights · limited
- Wednesdays95% on time · p90 on time · 167 flights · limited
- Fridays95% on time · p90 5 min · 175 flights · limited
- Mondays94% on time · p90 on time · 174 flights · limited
- Saturdays92% on time · p90 5 min · 168 flights · limited
- Thursdays91% on time · p90 10 min · 178 flights · limited
- Sundays86% on time · p90 15 min · 182 flights · limited
Keep exploring