Direct (nonstop) flights from Knoxville to Houston
1 airline flys nonstop from Mc Ghee Tyson (TYS) to George Bush Intcntl Houston (IAH). It's 771 miles (1,241 km), about 2h 29m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 27, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Knoxville to Houston with one stop · direct emits 143 kg CO₂ per passenger
Looking for the return flight?
IAH → TYS: Flights from Houston to KnoxvilleOther direct flights from Knoxville
Direct flights from Houston (IAH)
Frequently Asked Questions
How long is the direct flight from Knoxville to Houston?
A nonstop flight from Knoxville (TYS) to Houston (IAH) takes approximately 2 hours and 29 minutes. The distance is 771 miles (1,241 km).
Which airlines fly nonstop from Knoxville to Houston?
Just United Airlines.
Is there a nonstop flight from Knoxville to Houston?
Yes. 1 airline: United Airlines.
How far is Knoxville from Houston?
The flight distance from Knoxville to Houston is 771 miles (1,241 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Madrid.
What type of aircraft flies from Knoxville to Houston?
At 2h 29m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Knoxville to Houston?
Roughly 143 kg CO2 per passenger one-way. That's about the same as driving 715 km.
Is the return flight from Houston to Knoxville also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Knoxville to Houston?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Mc Ghee Tyson for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.