Historical on-time performance
Columbus to Seattle
2,016 miData through May 2026Source: US DOT · BTS
Flights on CMH–SEA arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights
based on 364 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesOn-time70%Medianon timep9045 minCancel0.5%Flights364
Why flights run late
Delay causes
- Airline25%
- Weather9%
- Air traffic (NAS)26%
- Late aircraft39%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline100%
- Weather0%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. 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 CMH → SEA
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 — 83% on time.
- Mornings83% on time · p90 25 min · 513 flights
- Evenings73% on time · p90 40 min · 892 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 83% on time.
- Tuesdays83% on time · p90 30 min · 171 flights · limited
- Wednesdays79% on time · p90 35 min · 201 flights
- Saturdays77% on time · p90 30 min · 180 flights · limited
- Mondays76% on time · p90 45 min · 213 flights
- Thursdays75% on time · p90 35 min · 208 flights
- Fridays75% on time · p90 30 min · 219 flights
- Sundays72% on time · p90 35 min · 216 flights
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