--- title: "Knoxville (TYS) to Denver (DEN) flights: who flies it" description: "United Airlines and Allegiant Air fly nonstop from TYS to DEN, about 14 flights a week, scheduled at 3h 6m to 3h 22m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/tys-den" url: "https://2lnr.com/routes/tys-den.md" date_modified: "2026-10-18T05:10:47Z" --- # Knoxville to Denver (TYS-DEN): nonstop flights and who flies them United Airlines and Allegiant Air fly nonstop between Knoxville (TYS) and Denver (DEN), roughly 14 times a week. The timetable below shows the nonstop scheduled at 3h 6m to 3h 22m for the 1,160 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 DEN on the interactive map [Get started free](https://2lnr.com/login) 14 Flights a week, 4-week average 3h 6m to 3h 22m Scheduled flight time 1,160 mi Nonstop distance Free To get started ## Knoxville to Denver flight schedule Scheduled nonstop departures for TYS to DEN starting October 23, 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 Denver (DEN) | Date | Flight | Airline | Departs TYS | Arrives DEN | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 23 | UA 1256 | United Airlines | 09:00 | 10:18 | 3h 18m | [Airbus A320](https://2lnr.com/seatmaps/ua/a320.md) | | Fri, Oct 23 | UA 2411 | United Airlines | 16:53 | 18:14 | 3h 21m | [Airbus A319](https://2lnr.com/seatmaps/ua/a319.md) | | Sat, Oct 24 | UA 1256 | United Airlines | 09:00 | 10:18 | 3h 18m | Airbus A320 | | Sat, Oct 24 | UA 2411 | United Airlines | 16:53 | 18:14 | 3h 21m | Airbus A320 | | Sun, Oct 25 | G4 3020 | Allegiant Air | 06:30 | 07:36 | 3h 6m | [Airbus A320](https://2lnr.com/seatmaps/g4/a320.md) | | Sun, Oct 25 | UA 1256 | United Airlines | 09:00 | 10:18 | 3h 18m | Airbus A320 | | Mon, Oct 26 | UA 1256 | United Airlines | 09:00 | 10:18 | 3h 18m | Airbus A320 | | Mon, Oct 26 | UA 696 | United Airlines | 17:05 | 18:25 | 3h 20m | [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md) | | Tue, Oct 27 | UA 1256 | United Airlines | 09:00 | 10:18 | 3h 18m | Airbus A320 | | Tue, Oct 27 | UA 696 | United Airlines | 17:05 | 18:27 | 3h 22m | Airbus A320 | | Wed, Oct 28 | UA 1256 | United Airlines | 09:00 | 10:18 | 3h 18m | Airbus A320 | | Wed, Oct 28 | UA 696 | United Airlines | 17:05 | 18:27 | 3h 22m | Airbus A320 | | Thu, Oct 29 | G4 3020 | Allegiant Air | 06:30 | 07:36 | 3h 6m | Airbus A320 | | Thu, Oct 29 | UA 1256 | United Airlines | 09:00 | 10:18 | 3h 18m | Airbus A320 | | Thu, Oct 29 | UA 696 | United Airlines | 17:05 | 18:25 | 3h 20m | Boeing 737-800 | Showing all 15 scheduled TYS to DEN departures across 7 days with service, starting October 23, 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 DEN date on the interactive map ## Aircraft on the Knoxville to Denver nonstop In the schedule table on this page, United Airlines flies the [Airbus A320](https://2lnr.com/seatmaps/ua/a320.md), the [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md), and the [Airbus A319](https://2lnr.com/seatmaps/ua/a319.md), and Allegiant Air flies the [Airbus A320](https://2lnr.com/seatmaps/g4/a320.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## The full TYS to DEN nonstop schedule This page carries the full TYS to DEN 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 DEN nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See TYS to DEN on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Knoxville to Denver nonstop Carriers operating TYS to DEN 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) - [Allegiant Air (G4) route map](https://2lnr.com/routes/airlines/g4.md)\ [The aircraft G4 flies](https://2lnr.com/seatmaps/g4.md) See TYS to DEN on the interactive map → ## Frequently asked questions about TYS to DEN **How long is the flight from Knoxville (TYS) to Denver (DEN)?** Scheduled flight times from Knoxville (TYS) to Denver (DEN) run from 3h 6m to 3h 22m across the departures in the schedule table on this page. The nonstop covers about 1,160 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from TYS to DEN?** United Airlines and Allegiant Air fly TYS to DEN nonstop. 2LNR doesn't show award or upgrade space for any of them on TYS to DEN, so this page carries the schedule rather than a space claim. **How many flights a week are there from TYS to DEN?** About 14 nonstop flights a week run between Knoxville (TYS) and Denver (DEN) in the current schedule, operated by United Airlines and Allegiant Air. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from TYS to DEN depart?** Scheduled TYS to DEN nonstops in the next 7 days with service leave between 06:30 and 17:05, 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 DEN nonstop?** In the schedule table on this page, TYS to DEN nonstops fly as UA 696, UA 1256, and UA 2411 on United Airlines, and G4 3020 on Allegiant Air. The table lists each departure by date with its times and aircraft. **Does 2LNR show upgrade or award space on TYS to DEN?** Not on this route: 2LNR doesn't show award or upgrade space for any airline flying TYS to DEN. The page carries the full TYS to DEN nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [DEN to TYS nonstop flights](https://2lnr.com/routes/den-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 Denver (DEN)](https://2lnr.com/routes/den.md). Nonstops to Denver (DEN) from other airports within 150 miles of Knoxville (TYS): - [Asheville (AVL) to Denver (DEN)](https://2lnr.com/routes/avl-den.md), 86 miles from TYS - [Chattanooga (CHA) to Denver (DEN)](https://2lnr.com/routes/cha-den.md), 86 miles from TYS - [Greenville (GSP) to Denver (DEN)](https://2lnr.com/routes/gsp-den.md), 119 miles from TYS 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 DEN 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. [Get started free](https://2lnr.com/login)