Alaska Airlines is the most reliable airline on the CMH to SEA route with a 79% on-time rate. Based on 1,652 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: CMH to SEA
Columbus to Seattle — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines79%
CMH to SEA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 79% | 1.4% | 51m | 1,652 |
Route Overview
79%
Overall On-Time
49m
Avg Delay
1%
Cancel Rate
1,656
Total Flights
Flying out of CMH? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.