--- title: "Knoxville (TYS) to Houston (IAH) flights: who flies it" description: "United Airlines flies Knoxville (TYS) to Houston (IAH) nonstop about 27 times a week, scheduled at 2h 25m to 2h 40m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/tys-iah" url: "https://2lnr.com/routes/tys-iah.md" date_modified: "2026-10-18T05:10:47Z" --- # 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 October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See TYS to IAH on the interactive map [Get started free](https://2lnr.com/login) 27 Flights a week, 4-week average 2h 25m to 2h 40m Scheduled flight time 770 mi Nonstop distance Free To get started ## 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. Scheduled nonstop departures from Knoxville (TYS) to Houston (IAH) | Date | Flight | Airline | Departs TYS | Arrives IAH | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | UA 6259 | United Airlines | 07:15 | 08:44 | 2h 29m | [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md) | | Thu, Oct 22 | UA 6134 | United Airlines | 13:34 | 14:59 | 2h 25m | Embraer E175 | | Thu, Oct 22 | UA 4055 | United Airlines | 15:45 | 17:10 | 2h 25m | Embraer E175 | | Fri, Oct 23 | UA 6259 | United Airlines | 07:15 | 08:44 | 2h 29m | Embraer E175 | | Fri, Oct 23 | UA 6134 | United Airlines | 13:34 | 14:59 | 2h 25m | Embraer E175 | | Fri, Oct 23 | UA 4055 | United Airlines | 15:45 | 17:10 | 2h 25m | Embraer E175 | | Sat, Oct 24 | UA 6259 | United Airlines | 07:15 | 08:44 | 2h 29m | Embraer E175 | | Sat, Oct 24 | UA 6134 | United Airlines | 14:21 | 15:50 | 2h 29m | Embraer E175 | | Sat, Oct 24 | UA 4055 | United Airlines | 15:45 | 17:10 | 2h 25m | Embraer E175 | | Sun, Oct 25 | UA 6259 | United Airlines | 07:15 | 08:44 | 2h 29m | Embraer E175 | | Sun, Oct 25 | UA 6134 | United Airlines | 14:21 | 15:50 | 2h 29m | Embraer E175 | | Sun, Oct 25 | UA 6219 | United Airlines | 15:45 | 17:22 | 2h 37m | Embraer E175 | | Sun, Oct 25 | UA 4079 | United Airlines | 17:15 | 18:55 | 2h 40m | Embraer E175 | | Mon, Oct 26 | UA 6259 | United Airlines | 07:15 | 08:44 | 2h 29m | Embraer E175 | | Mon, Oct 26 | UA 6134 | United Airlines | 12:05 | 13:30 | 2h 25m | Embraer E175 | | Mon, Oct 26 | UA 6219 | United Airlines | 15:45 | 17:22 | 2h 37m | Embraer E175 | | Mon, Oct 26 | UA 4079 | United Airlines | 17:15 | 18:52 | 2h 37m | Embraer E175 | | Tue, Oct 27 | UA 6259 | United Airlines | 07:00 | 08:40 | 2h 40m | Embraer E175 | | Tue, Oct 27 | UA 6134 | United Airlines | 12:05 | 13:30 | 2h 25m | Embraer E175 | | Tue, Oct 27 | UA 6219 | United Airlines | 15:45 | 17:22 | 2h 37m | Embraer E175 | | Tue, Oct 27 | UA 4079 | United Airlines | 17:15 | 18:52 | 2h 37m | Embraer E175 | | Wed, Oct 28 | UA 6259 | United Airlines | 07:00 | 08:40 | 2h 40m | Embraer E175 | | Wed, Oct 28 | UA 6134 | United Airlines | 12:05 | 13:30 | 2h 25m | Embraer E175 | | Wed, Oct 28 | UA 6219 | United Airlines | 15:45 | 17:22 | 2h 37m | Embraer E175 | | Wed, Oct 28 | UA 4079 | United Airlines | 17:15 | 18:52 | 2h 37m | Embraer 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](https://2lnr.com/seatmaps/ua/e175.md) 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. - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) 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. Flying the other way? See [IAH to TYS nonstop flights](https://2lnr.com/routes/iah-tys.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Knoxville (TYS)](https://2lnr.com/routes/tys.md), or [every route from Houston (IAH)](https://2lnr.com/routes/iah.md). Nonstops to Houston (IAH) from other airports within 150 miles of Knoxville (TYS): - [Chattanooga (CHA) to Houston (IAH)](https://2lnr.com/routes/cha-iah.md), 86 miles from TYS - [Greenville (GSP) to Houston (IAH)](https://2lnr.com/routes/gsp-iah.md), 119 miles from TYS Nonstops from Knoxville (TYS) to other airports within 150 miles of Houston (IAH): - [Knoxville (TYS) to Houston (HOU)](https://2lnr.com/routes/tys-hou.md), 24 miles from IAH - [Knoxville (TYS) to College Station (CLL)](https://2lnr.com/routes/tys-cll.md), 74 miles from IAH - [Knoxville (TYS) to Austin (AUS)](https://2lnr.com/routes/tys-aus.md), 140 miles from IAH Distances are great-circle between the airports, not driving distance. - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) ## 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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