Historical on-time performance
Seattle to Cincinnati
1,965 miData through May 2026Source: US DOT · BTS
Flights on SEA–CVG arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights
based on 649 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time86%Medianon timep9020 minCancel1.0%Flights306
- Alaska AirlinesOn-time72%Medianon timep9040 minCancel1.2%Flights343
Why flights run late
Delay causes
- Airline49%
- Weather0%
- Air traffic (NAS)19%
- Late aircraft31%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline29%
- Weather71%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 7 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 SEA → CVG
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 83% to 86% on time.
- Mornings86% on time · p90 15 min · 383 flights
- Middays83% on time · p90 25 min · 1,758 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 86% on time.
- Wednesdays86% on time · p90 20 min · 322 flights
- Tuesdays85% on time · p90 20 min · 303 flights
- Fridays84% on time · p90 20 min · 322 flights
- Thursdays83% on time · p90 20 min · 318 flights
- Mondays82% on time · p90 30 min · 323 flights
- Saturdays82% on time · p90 25 min · 298 flights
- Sundays74% on time · p90 35 min · 324 flights
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