Southwest Airlines is the most reliable airline on the IAH to BNA route with a 86% on-time rate, compared to SkyWest Airlines at 75%. Based on 1,528 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: IAH to BNA
Houston to Nashville — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines86%
Spirit Airlines78%
United Airlines77%
SkyWest Airlines75%
IAH to BNA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 86% | 1.0% | 60m | 1,528 |
| Spirit AirlinesNK | 78% | 9.8% | 50m | 64 |
| United AirlinesUA | 77% | 1.2% | 67m | 3,581 |
| SkyWest AirlinesOOWorst | 75% | 1.9% | 78m | 1,402 |
Route Overview
78%
Overall On-Time
69m
Avg Delay
1.4%
Cancel Rate
6,604
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.