Historical on-time performance
Columbus to Seattle
2,016 miData through Dec 2025Source: 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 368 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%Flights368
Why flights run late
Delay causes
- Airline25%
- Weather9%
- Air traffic (NAS)25%
- Late aircraft42%
- 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 CMH → SEA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 85% on time.
- Mornings85% on time · p90 25 min · 469 flights
- Evenings76% on time · p90 40 min · 922 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 84% on time.
- Tuesdays84% on time · p90 25 min · 173 flights · limited
- Wednesdays82% on time · p90 25 min · 199 flights · limited
- Saturdays79% on time · p90 30 min · 179 flights · limited
- Mondays78% on time · p90 35 min · 212 flights
- Fridays77% on time · p90 30 min · 214 flights
- Thursdays76% on time · p90 30 min · 204 flights
- Sundays75% on time · p90 35 min · 213 flights
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