United Airlines is the most reliable airline on the IAD to PBI route with a 81% on-time rate, compared to Republic Airways at 80%. Based on 336 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: IAD to PBI
Washington to West Palm Beach — airline reliability comparison
On-Time Rate by Airline
United Airlines81%
Republic Airways80%
IAD to PBI Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| United AirlinesUABest | 81% | 0.9% | 70m | 336 |
| Republic AirwaysYXWorst | 80% | 0.0% | 34m | 46 |
Route Overview
81%
Overall On-Time
75m
Avg Delay
1%
Cancel Rate
388
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.