Nashville (BNA) to Houston (IAH): On-Time Performance
Data through July 2026
When you fly BNA to IAH matters as much as anything else about the booking: the route swung from 95% on-time in September 2025 to just 63% in June 2025. Across the full period the route averages 82% on-time against a national 78%. Morning departures also hold up better than evening ones (87% vs 70%), which matters most in the rough months.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 3.9
- last 12 months
- Duration
- 2h 21m
- scheduled
- Distance
- 657 mi
Best airline from BNA to IAH
4 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 86% | 16 min | 1.6% | 928 |
| United Airlines | 82% | 17 min | 0.9% | 2,014 |
| Spirit Airlines | 68% | 18 min | 10.4% | 77 |
| Southwest Airlines | 67% | 20 min | 3.4% | 88 |
Monthly on-time trend
Best time to fly from BNA to IAH
Aim for departures around 10 a.m. (89% on-time); avoid 3 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 21 min |
| Tuesday | 87% | 11 min |
| Wednesday | 84% | 16 min |
| Thursday | 79% | 20 min |
| Friday | 80% | 18 min |
| Saturdaybest | 87% | 16 min |
| Sunday | 82% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft33%
- Airline operations37%
- National airspace system26%
- Weather5%
Frequently asked questions
- How often are flights from BNA to IAH delayed?
- 18% of BNA–IAH flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 17 minutes.
- Which airline is most reliable from BNA to IAH?
- SkyWest Airlines has the best on-time record on this route at 86%, based on 928 flights. 4 airlines flew BNA–IAH frequently enough to compare in this period.
- What is the best time of day to fly from BNA to IAH?
- Departures around 10 a.m. have the best record (89% on-time), while departures around 3 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BNA to IAH?
- The scheduled BNA–IAH flight time averages 2h 21m over 657 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are BNA to IAH flights cancelled?
- 1.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from BNA to IAH?
- June 2025 was the roughest month in this dataset, with only 63% of arrivals on time. The best was September 2025 at 95%. If your dates are flexible, that 33-point gap is worth planning around.
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Based on 3,107 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.