Alaska Airlines is the most reliable airline on the MKE to SEA route with a 85% on-time rate. Based on 1,628 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: MKE to SEA
Milwaukee to Seattle — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines85%
MKE to SEA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 85% | 0.8% | 38m | 1,628 |
Route Overview
86%
Overall On-Time
37m
Avg Delay
0.6%
Cancel Rate
1,629
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.