Alaska Airlines is the most reliable airline on the SEA to MKE route with a 85% on-time rate. Based on 1,629 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SEA to MKE
Seattle to Milwaukee — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines85%
SEA to MKE Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 85% | 0.7% | 35m | 1,629 |
Route Overview
84%
Overall On-Time
36m
Avg Delay
0.4%
Cancel Rate
1,630
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.