Frontier Airlines is the most reliable airline on the GRR to RSW route with a 79% on-time rate, compared to Southwest Airlines at 50%. Based on 206 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: GRR to RSW
Grand Rapids to Fort Myers — airline reliability comparison
On-Time Rate by Airline
Frontier Airlines79%
Southwest Airlines50%
GRR to RSW Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Frontier AirlinesF9Best | 79% | 4.1% | 112m | 206 |
| Southwest AirlinesWNWorst | 50% | 0.0% | 51m | 12 |
Route Overview
76%
Overall On-Time
117m
Avg Delay
3.1%
Cancel Rate
259
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.