United Airlines is the most reliable airline on the FLL to IAD route with a 87% on-time rate, compared to Frontier Airlines at 58%. Based on 2,791 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: FLL to IAD
Fort Lauderdale to Washington — airline reliability comparison
On-Time Rate by Airline
United Airlines87%
Frontier Airlines58%
FLL to IAD Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| United AirlinesUABest | 87% | 0.9% | 79m | 2,791 |
| Frontier AirlinesF9Worst | 58% | 4.4% | 94m | 72 |
Route Overview
86%
Overall On-Time
82m
Avg Delay
1%
Cancel Rate
2,863
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.