Route Reliability
Houston → Knoxville
IAH–TYS · 771 miles · George Bush Intercontinental Airport to McGhee Tyson Airport
- 81%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 1.6%
- Cancelled
- 1,396
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 81% of the time across 1,396 flights. No comparison to make.
What the data says
Morning-you made the right choice.
IAH–TYS flights departing between 9 AM–12 PM arrived on time 87% of the time, versus 78% between 3–6 PM.
Friday is doing you no favors.
IAH–TYS flights arrived on time 87% of the time on Wednesdays. On Fridays: 74%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon77%(199 flights)
- Tue86%(192 flights)
- Wed87%(196 flights)
- Thu84%(201 flights)
- Fri74%(198 flights)
- Sat80%(184 flights)
- Sun80%(198 flights)
- 6–9 AM84%(31 flights)
- 9 AM–12 PM87%(336 flights)
- 12–3 PM81%(338 flights)
- 3–6 PM78%(326 flights)
- 6–9 PM80%(337 flights)
Jun 66% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 66% | 117 |
| July 2025 | 70% | 120 |
| August 2025 | 74% | 120 |
| September 2025 | 94% | 116 |
| October 2025 | 85% | 123 |
| November 2025 | 79% | 118 |
| December 2025 | 78% | 120 |
| January 2026 | 88% | 104 |
| February 2026 | 92% | 103 |
| March 2026 | 85% | 117 |
| April 2026 | 85% | 117 |
| May 2026 | 84% | 93 |
Same trip, other airports
Keep nerding
Based on 1,396 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.