Flights Knoxville → Houston
TYS → IAH
Route overview
The flight route from Knoxville to Houston has an on-time performance rate of 88%, with an average delay of 7.1 minutes per flight. Over the course of a year, this route sees 347 flights connecting Knoxville to one of the busiest airports in the United States, which serves approximately 40,979,422 passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Knoxville (TYS) → Houston (IAH) route is operated by United Airlines. Across 439 flights monitored in recent months, 89% arrived on time (within 15 min of schedule), with an average delay of 6 minutes. The cancellation rate is 1.37%. FlightGuard's average computed risk is 16/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Houston the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Knoxville the average ATFM delay is 2.0 minutes.
Heading to Houston: what to expect in this direction
Flying from Knoxville (TYS) to Houston (IAH) heads south-west for about 1,241 km, a flight time of roughly 1h 58m.
Departures from Knoxville on this leg cluster in the overnight window: about 54% of TYS-IAH flights take off then.
Air-traffic congestion: departing Knoxville the average ATFM delay is 2.0 min (atfm); arriving into Houston it is 2.0 min (atfm).
Across 439 tracked TYS-IAH flights, 89% left on time with an average delay of 6 min and a 1.4% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 74% | 10 min | 6.9% |
Airlines operating TYS-IAH
Airports
Frequently asked questions about TYS-IAH
On the Knoxville (TYS) -> Houston (IAH) route, on-time performance is 89% with an average delay of 6 minutes, based on 439 tracked flights.
The cancellation rate on Knoxville-Houston is 1.37% across 439 monitored flights.
The route is operated by 1 airline: United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Houston, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
