Skip to content
WanderNerd
Check a flight

Route Reliability

Memphis → Denver

MEM–DEN · 872 miles · Memphis International Airport to Denver International Airport

82
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
9 min
Average arrival delay
1.0%
Cancelled
1,304
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.United Airlines81%729 flights
  2. 2.Southwest Airlines80%439 flights
  3. 3.Frontier Airlines71%136 flights

What the data says

Morning-you made the right choice.

MEM–DEN flights departing between 3–6 AM arrived on time 93% of the time, versus 68% between 6–9 PM.

Monday has been the better bet.

A small edge: 82% on time on Mondays against 76% on Thursdays.

United Airlines runs this route best.

United Airlines arrived on time 81% of the time on this route; Frontier Airlines managed 71%.

Slipping a little lately.

MEM–DEN flights arrived on time 80% of the time over the last three months in the data, compared with 84% in the three months before that.

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
  • Mon82%(191 flights)
  • Tue81%(168 flights)
  • Wed82%(169 flights)
  • Thu76%(211 flights)
  • Fri78%(180 flights)
  • Sat78%(154 flights)
  • Sun79%(214 flights)
On-time by departure window
  • 3–6 AM93%(15 flights)
  • 6–9 AM87%(516 flights)
  • 9 AM–12 PM84%(145 flights)
  • 12–3 PM73%(30 flights)
  • 3–6 PM72%(424 flights)
  • 6–9 PM68%(157 flights)
On-time trend by month
81%
May

Jun 60% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%98
July 202569%101
August 202574%100
September 202578%102
October 202582%105
November 202594%101
December 202578%105
January 202688%97
February 202688%96
March 202676%129
April 202684%125
May 202681%128

Keep nerding

Based on 1,304 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.