Frontier Airlines is the most reliable airline on the RDU to PWM route with a 69% on-time rate. Based on 86 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: RDU to PWM
Raleigh to Portland — airline reliability comparison
On-Time Rate by Airline
Frontier Airlines69%
RDU to PWM Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Frontier AirlinesF9Best | 69% | 11.4% | 53m | 86 |
Route Overview
70%
Overall On-Time
52m
Avg Delay
11.6%
Cancel Rate
86
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.