Historical on-time performance
Columbus to Washington
323 miData through May 2026Source: US DOT · BTS
Flights on CMH–DCA arrive on time 66% of the time over the last 12 months.
On-time rate66%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled3.9%of scheduled flights
based on 1,705 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Envoy AirbestOn-time90%Medianon timep9010 minCancel0.8%Flights245
- Republic AirwaysOn-time64%Medianon timep9060 minCancel4.1%Flights909
- Southwest AirlinesOn-time63%Medianon timep9070 minCancel0.9%Flights214
- PSA AirlinesOn-time54%Median5 minp9095 minCancel7.7%Flights337
Why flights run late
Delay causes
- Airline6%
- Weather10%
- Air traffic (NAS)45%
- Late aircraft40%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline4%
- Weather72%
- Air traffic (NAS)24%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 67 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 → DCA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 86% on time.
- Mornings86% on time · p90 15 min · 1,384 flights
- Middays81% on time · p90 30 min · 2,012 flights
- Afternoons67% on time · p90 65 min · 1,275 flights
- Evenings65% on time · p90 75 min · 1,181 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 80% on time.
- Saturdays80% on time · p90 45 min · 585 flights
- Tuesdays78% on time · p90 35 min · 897 flights
- Wednesdays77% on time · p90 45 min · 891 flights
- Sundays76% on time · p90 55 min · 884 flights
- Thursdays74% on time · p90 50 min · 885 flights
- Mondays73% on time · p90 40 min · 892 flights
- Fridays71% on time · p90 40 min · 888 flights
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