Frontier Airlines is the most reliable airline on the RDU to MKE route with a 80% on-time rate. Based on 26 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: RDU to MKE
Raleigh to Milwaukee — airline reliability comparison
On-Time Rate by Airline
Frontier Airlines80%
RDU to MKE Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Frontier AirlinesF9Best | 80% | 3.8% | 48m | 26 |
Route Overview
80%
Overall On-Time
48m
Avg Delay
3.8%
Cancel Rate
26
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.