Historical on-time performance
Columbus to Washington
Flights on CMH–IAD arrive on time 83% of the time over the last 12 months.
based on 1,016 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Republic AirwaysOn-time84%Medianon timep9020 minCancel2.1%Flights716
- United AirlinesOn-time80%Medianon timep9035 minCancel0.7%Flights300
Why flights run late
Delay causes
- Airline36%
- Weather4%
- Air traffic (NAS)15%
- Late aircraft45%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline12%
- Weather47%
- Air traffic (NAS)41%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 17 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 CMH → 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 74% to 93% on time.
- Mornings93% on time · p90 10 min · 1,099 flights
- Middays91% on time · p90 10 min · 650 flights
- Evenings82% on time · p90 35 min · 566 flights
- Afternoons74% on time · p90 35 min · 518 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 84% to 90% on time.
- Saturdays90% on time · p90 10 min · 334 flights
- Thursdays88% on time · p90 15 min · 444 flights
- Wednesdays87% on time · p90 25 min · 436 flights
- Tuesdays87% on time · p90 15 min · 419 flights
- Sundays86% on time · p90 20 min · 420 flights
- Fridays84% on time · p90 20 min · 430 flights
- Mondays84% on time · p90 20 min · 443 flights
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