Delta Air Lines is the most reliable airline on the CVG to SEA route with a 87% on-time rate, compared to Alaska Airlines at 78%. Based on 1,302 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: CVG to SEA
Cincinnati to Seattle — airline reliability comparison
On-Time Rate by Airline
Delta Air Lines87%
Alaska Airlines78%
CVG to SEA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 87% | 0.6% | 59m | 1,302 |
| Alaska AirlinesASWorst | 78% | 1.8% | 54m | 1,382 |
Route Overview
82%
Overall On-Time
56m
Avg Delay
1.2%
Cancel Rate
2,684
Total Flights
Flying out of CVG? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.