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

United Airlines flies nonstop between Knoxville (TYS) and Houston (IAH), roughly 27 times a week. The timetable below shows the nonstop scheduled at 2h 25m to 2h 40m 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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27
Flights a week, 4-week average
2h 25m to 2h 40m
Scheduled flight time
770 mi
Nonstop distance
Free
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Knoxville to Houston flight schedule

Scheduled nonstop departures for TYS to IAH 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 Knoxville (TYS) to Houston (IAH)
Date Flight Airline Departs TYS Arrives IAH Duration Aircraft
UA 6259United Airlines07:1508:442h 29mEmbraer E175
UA 6134United Airlines13:3414:592h 25mEmbraer E175
UA 4055United Airlines15:4517:102h 25mEmbraer E175
UA 6259United Airlines07:1508:442h 29mEmbraer E175
UA 6134United Airlines13:3414:592h 25mEmbraer E175
UA 4055United Airlines15:4517:102h 25mEmbraer E175
UA 6259United Airlines07:1508:442h 29mEmbraer E175
UA 6134United Airlines14:2115:502h 29mEmbraer E175
UA 4055United Airlines15:4517:102h 25mEmbraer E175
UA 6259United Airlines07:1508:442h 29mEmbraer E175
UA 6134United Airlines14:2115:502h 29mEmbraer E175
UA 6219United Airlines15:4517:222h 37mEmbraer E175
UA 4079United Airlines17:1518:552h 40mEmbraer E175
UA 6259United Airlines07:1508:442h 29mEmbraer E175
UA 6134United Airlines12:0513:302h 25mEmbraer E175
UA 6219United Airlines15:4517:222h 37mEmbraer E175
UA 4079United Airlines17:1518:522h 37mEmbraer E175
UA 6259United Airlines07:0008:402h 40mEmbraer E175
UA 6134United Airlines12:0513:302h 25mEmbraer E175
UA 6219United Airlines15:4517:222h 37mEmbraer E175
UA 4079United Airlines17:1518:522h 37mEmbraer E175
UA 6259United Airlines07:0008:402h 40mEmbraer E175
UA 6134United Airlines12:0513:302h 25mEmbraer E175
UA 6219United Airlines15:4517:222h 37mEmbraer E175
UA 4079United Airlines17:1518:522h 37mEmbraer E175

Showing all 25 scheduled TYS to IAH 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 TYS to IAH date on the interactive map

Aircraft on the Knoxville to Houston nonstop

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

The full TYS to IAH nonstop schedule

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

See the schedule

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

Plan on the map

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

Airlines flying Knoxville to Houston nonstop

Carriers operating TYS to IAH nonstop in the current schedule.

See TYS to IAH on the interactive map →

Frequently asked questions about TYS to IAH

How long is the flight from Knoxville (TYS) to Houston (IAH)?
Scheduled flight times from Knoxville (TYS) to Houston (IAH) run from 2h 25m to 2h 40m 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 TYS to IAH?
United Airlines is currently the only airline flying TYS to IAH nonstop. 2LNR doesn't show award or upgrade space for it on TYS to IAH, so this page carries the schedule rather than a space claim.
How many flights a week are there from TYS to IAH?
About 27 nonstop flights a week run between Knoxville (TYS) and Houston (IAH) 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 TYS to IAH depart?
Scheduled TYS to IAH nonstops in the next 7 days with service leave between 07:00 and 17:15, local time at Knoxville. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate TYS to IAH nonstop?
In the schedule table on this page, TYS to IAH nonstops fly as UA 4055, UA 4079, UA 6134, UA 6219, and UA 6259 on United Airlines. The table lists each departure by date with its times and aircraft.
Does 2LNR show upgrade or award space on TYS to IAH?
Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on TYS to IAH. The page carries the full TYS to IAH nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full TYS to IAH 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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