United Airlines is the most reliable airline on the TPA to IAD route with a 84% on-time rate, compared to Frontier Airlines at 76%. Based on 4,131 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: TPA to IAD
Tampa to Washington — airline reliability comparison
On-Time Rate by Airline
United Airlines84%
Frontier Airlines76%
TPA to IAD Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| United AirlinesUABest | 84% | 1.4% | 80m | 4,131 |
| Frontier AirlinesF9Worst | 76% | 3.4% | 63m | 334 |
Route Overview
83%
Overall On-Time
79m
Avg Delay
1.5%
Cancel Rate
4,481
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.