Houston to Knoxville (IAH-TYS): nonstop flights and who flies them

United Airlines flies nonstop between Houston (IAH) and Knoxville (TYS), roughly 28 times a week. The timetable below shows the nonstop scheduled at 2h 12m to 2h 20m for the 770 miles.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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28
Flights a week, 4-week average
2h 12m to 2h 20m
Scheduled flight time
770 mi
Nonstop distance
Free
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Houston to Knoxville flight schedule

Scheduled nonstop departures for IAH to TYS starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Houston (IAH) to Knoxville (TYS)
Date Flight Airline Departs IAH Arrives TYS Duration Aircraft
UA 6291United Airlines08:0011:172h 17mEmbraer E175
UA 4047United Airlines14:4518:052h 20mEmbraer E175
UA 4005United Airlines18:3521:552h 20mEmbraer E175
UA 6291United Airlines08:0011:172h 17mEmbraer E175
UA 4047United Airlines14:4518:052h 20mEmbraer E175
UA 4005United Airlines18:3521:552h 20mEmbraer E175
UA 6291United Airlines08:0011:172h 17mEmbraer E175
UA 4047United Airlines14:4518:052h 20mEmbraer E175
UA 4005United Airlines18:3521:552h 20mEmbraer E175
UA 6291United Airlines08:0011:122h 12mEmbraer E175
UA 4903United Airlines10:3513:542h 19mERJ
UA 4047United Airlines14:4518:052h 20mEmbraer E175
UA 6300United Airlines16:2019:342h 14mEmbraer E175
UA 4005United Airlines18:3521:552h 20mEmbraer E175
UA 6291United Airlines08:0011:122h 12mEmbraer E175
UA 4047United Airlines14:4518:052h 20mEmbraer E175
UA 6300United Airlines16:2019:342h 14mEmbraer E175
UA 4005United Airlines18:3521:552h 20mEmbraer E175
UA 6291United Airlines08:0011:122h 12mEmbraer E175
UA 4047United Airlines14:4518:052h 20mEmbraer E175
UA 6300United Airlines16:2019:342h 14mEmbraer E175
UA 4005United Airlines18:3521:552h 20mEmbraer E175
UA 6291United Airlines08:0011:122h 12mEmbraer E175
UA 4047United Airlines14:4518:052h 20mEmbraer E175
UA 6300United Airlines16:2019:342h 14mEmbraer E175
UA 4005United Airlines18:3521:552h 20mEmbraer E175

Showing all 26 scheduled IAH to TYS departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every IAH to TYS date on the interactive map

Aircraft on the Houston to Knoxville nonstop

United Airlines flies the departures in the schedule table on this page with the Embraer E175 and the Embraer ERJ. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

The full IAH to TYS nonstop schedule

This page carries the full IAH to TYS nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See the schedule

Who operates each IAH to TYS nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

See IAH to TYS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Houston to Knoxville nonstop

Carriers operating IAH to TYS nonstop in the current schedule.

See IAH to TYS on the interactive map →

Frequently asked questions about IAH to TYS

How long is the flight from Houston (IAH) to Knoxville (TYS)?
Scheduled flight times from Houston (IAH) to Knoxville (TYS) run from 2h 12m to 2h 20m across the departures in the schedule table on this page. The nonstop covers about 770 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from IAH to TYS?
United Airlines is currently the only airline flying IAH to TYS nonstop. 2LNR doesn't show award or upgrade space for it on IAH to TYS, so this page carries the schedule rather than a space claim.
How many flights a week are there from IAH to TYS?
About 28 nonstop flights a week run between Houston (IAH) and Knoxville (TYS) in the current schedule, operated by United Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from IAH to TYS depart?
Scheduled IAH to TYS nonstops in the next 7 days with service leave between 08:00 and 18:35, local time at Houston. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate IAH to TYS nonstop?
In the schedule table on this page, IAH to TYS nonstops fly as UA 4005, UA 4047, UA 4903, UA 6291, and UA 6300 on United Airlines. The table lists each departure by date with its times and aircraft.
Does 2LNR show upgrade or award space on IAH to TYS?
Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on IAH to TYS. The page carries the full IAH to TYS nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full IAH to TYS nonstop schedule

Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro.

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