Historical on-time performance
Seattle to Columbus
2,016 miData through Dec 2025Source: US DOT · BTS
Flights on SEA–CMH arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.0%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-time67%Median5 minp9035 minCancel0.0%Flights368
Why flights run late
Delay causes
- Airline37%
- Weather0%
- Air traffic (NAS)31%
- Late aircraft32%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SEA → CMH
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Afternoons are the most reliable time of day to fly this route — 92% on time.
- Afternoons92% on time · p90 10 min · 66 flights · limited
- Mornings79% on time · p90 30 min · 222 flights
- Middays77% on time · p90 30 min · 755 flights
- Overnights70% on time · p90 30 min · 351 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 84% on time.
- Tuesdays84% on time · p90 20 min · 167 flights · limited
- Thursdays77% on time · p90 30 min · 212 flights
- Wednesdays77% on time · p90 30 min · 199 flights · limited
- Sundays76% on time · p90 30 min · 215 flights
- Saturdays75% on time · p90 30 min · 178 flights · limited
- Fridays73% on time · p90 30 min · 211 flights
- Mondays72% on time · p90 30 min · 212 flights
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