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Route Reliability

Knoxville → Denver

TYS–DEN · 1,162 miles · McGhee Tyson Airport to Denver International Airport

87
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
1 min
Average arrival delay
0.5%
Cancelled
938
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.United Airlines87%729 flights
  2. 2.Frontier Airlines72%126 flights

Not enough history to rank: Allegiant Air (67 flights), Southwest Airlines (16 flights). We rank airlines only after 100 flights on the route.

What the data says

The 12–3 PM departure wins.

TYS–DEN flights departing between 12–3 PM arrived on time 100% of the time, versus 77% between 3–6 PM.

Thursdays have been rough.

TYS–DEN flights arrived on time 92% of the time on Wednesdays and just 75% on Thursdays. That gap is worth planning around.

United Airlines runs this route best.

United Airlines arrived on time 87% of the time on this route; Frontier Airlines managed 72%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon84%(134 flights)
  • Tue86%(108 flights)
  • Wed92%(106 flights)
  • Thu75%(164 flights)
  • Fri88%(125 flights)
  • Sat87%(112 flights)
  • Sun84%(176 flights)
On-time by departure window
  • 6–9 AM93%(316 flights)
  • 9 AM–12 PM90%(87 flights)
  • 12–3 PM100%(17 flights)
  • 3–6 PM77%(454 flights)
  • 6–9 PM78%(51 flights)
On-time trend by month
89%
May

Jun 59% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%75
July 202574%76
August 202570%81
September 202589%81
October 202581%88
November 202595%78
December 202588%84
January 202694%69
February 202692%63
March 202689%71
April 202693%75
May 202689%84

Keep nerding

Based on 938 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.