The "Union Station Travel by Train" neon sign and clock above the granite facade of Denver Union Station

Knoxville nonstops · west and Texas

Knoxville to Denver, Vegas, Phoenix and Texas.

6 western nonstops from TYS, plus the big Texas hubs. Southwest's Las Vegas flights join in March 2027. Plan around the time zones with the landing-time calculator.

Photo: Photo via Pexels (pexels.com/photo/37370296)

Short answer

From Knoxville you can fly nonstop west to Denver (United, Allegiant, Southwest), Las Vegas (Allegiant; Southwest from March 2027), Phoenix (Allegiant, seasonal) and in Texas to Austin, Dallas Love Field, Houston Hobby, plus the hubs DFW and Houston Bush.

Long-haul from TYS

The West by the numbers

1,735miles to Las Vegas, the longest nonstop from TYS.

3airlines fly Denver after Frontier left in August 2026.

Mar 2027Southwest's announced start for Las Vegas.

96kTYS to Denver passengers, Oct 2024 to Sep 2025.

Calculator

Land before lunch, home by dinner?

Knoxville is on Eastern time. Every western nonstop crosses at least one time zone, and Arizona skips daylight saving. Enter your times and see the clock on both ends.

What time will I land?

You land about

8:55 AM MDT

2 hours behind Knoxville

Estimated air time 2h 55m

Home in Knoxville about

9:55 PM EDT

Westbound, the clock moves only about 55m while you spend about 2h 55m in the air. Coming home you lose 4h 55m of clock time.

United, Allegiant, Southwest. Year-round.

Air time is our rough estimate (30 minutes plus distance at about 480 mph); your airline's schedule is the real answer.

Map

The western routes

West and Texas nonstops from TYS8 of 8 shown

AllegiantAmericanSouthwestUnitedSeasonal or announced (dashed)

Austin AUS Allegiant, Southwest · seasonal
Dallas (Love Field) DAL Southwest
Denver DEN United, Allegiant, Southwest
Houston (Hobby) HOU Allegiant · seasonal
Las Vegas LAS Allegiant, Southwest (announced)
Phoenix (Sky Harbor) PHX Allegiant · seasonal
Dallas/Fort Worth DFW American
Houston (Intercontinental) IAH United

The list

All west and Texas nonstops

Nonstops in this group with airlines, season and sourced frequency
Destination	Airlines	Season	How often (sourced)	Distance	Est. air time	Airport to downtown
Las Vegas LAS New Announced: Southwest begins March 2027	Allegiant	Year-round	Allegiant: Usually 2 to 4x weekly	1735 mi	4h 07m	n/a
Phoenix (Sky Harbor) PHX	Allegiant	Seasonal Allegiant showed no Phoenix fares until February 28, 2027 at our October check.	Allegiant: Usually 2 to 4x weekly	1596 mi	3h 50m	11m · 5 mi
Denver DEN New	United Allegiant Southwest	Year-round	United: Check the airline Allegiant: Usually 2 to 4x weekly Southwest: Weekends, seasonal	1160 mi	2h 55m	35m · 25 mi
Austin AUS New	Allegiant Southwest	Seasonal	Allegiant: Usually 2 to 4x weekly Southwest: Weekends, seasonal	881 mi	2h 20m	13m · 8 mi
Houston (Hobby) HOU	Allegiant	Seasonal	Allegiant: Usually 2 to 4x weekly	781 mi	2h 08m	21m · 12 mi
Houston (Intercontinental) IAH	United	Year-round	United: Check the airline	771 mi	2h 06m	34m · 22 mi
Dallas/Fort Worth DFW	American	Year-round	American: Check the airline	770 mi	2h 06m	28m · 21 mi
Dallas (Love Field) DAL New	Southwest	Year-round	Southwest: Daily	761 mi	2h 05m	15m · 7 mi

Air time is our rough estimate from straight-line distance, not a schedule. "How often" appears only where a source states it; Allegiant flies most TYS routes 2 to 4 times a week.

Airport-to-downtown times are OSRM estimates in free-flowing traffic. Las Vegas is left out because the routing to the Strip was not reliable.

United, Allegiant, SouthwestDenverThree airlines.

The Las Vegas Strip at dusk with the Bellagio fountains, Caesars Palace and the Paris Las Vegas Eiffel Tower

Allegiant; Southwest 2027Las VegasThe longest TYS nonstop.

Downtown Phoenix skyline and Chase Field in the Valley of the Sun, with desert mountains behind

Allegiant, seasonalPhoenixFares shown from Feb 28, 2027 at our check.

The pink granite dome of the Texas State Capitol in Austin, rising above live oaks on the Capitol grounds

Allegiant and SouthwestAustinSouthwest added it in fall 2026.

Request a nonstop

Where should Knoxville fly next?

Name the city. Every request is counted and the leaderboard goes to the airport's air-service team, the people who pitch new routes to airlines.

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Questions

Can you fly nonstop from Knoxville to Las Vegas?

Yes. Allegiant flies TYS to Las Vegas year-round. Southwest has announced Las Vegas service starting in March 2027; it did not give an exact date in its announcement.

Can you fly nonstop from Knoxville to Denver?

Yes, on United (year-round), Allegiant (year-round, low frequency) and Southwest (weekends, seasonal). Frontier ended its Denver flights on August 17, 2026.

Can you fly nonstop from Knoxville to Phoenix?

Yes, on Allegiant, seasonally. At our October check Allegiant showed no Phoenix fares until February 28, 2027.

Can you fly nonstop from Knoxville to Texas?

Yes: Dallas/Fort Worth (American), Dallas Love Field (Southwest, daily), Houston Bush (United), Houston Hobby (Allegiant, seasonal) and Austin (Allegiant and Southwest, seasonal).

What time zone is Phoenix in compared with Knoxville?

Arizona does not observe daylight saving time, so Phoenix is 3 hours behind Knoxville from March to November and 2 hours behind in winter. The calculator handles this for your date.

Sources