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Route Reliability

Miami → Denver

MIA–DEN · 1,709 miles · Miami International Airport to Denver International Airport

80
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
6 min
Average arrival delay
0.6%
Cancelled
2,510
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.United Airlines83%954 flights
  2. 2.Frontier Airlines83%347 flights
  3. 3.American Airlines76%884 flights
  4. 4.Southwest Airlines66%325 flights

What the data says

Morning-you made the right choice.

MIA–DEN flights departing between 6–9 AM arrived on time 90% of the time, versus 69% between 3–6 PM.

Sunday scaries are real for this one.

MIA–DEN flights arrived on time 81% of the time on Thursdays. On Sundays: 74%.

United Airlines has a clear lead on this route.

United Airlines arrived on time 83% of the time on this route; Southwest Airlines managed 66%.

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
  • Mon78%(373 flights)
  • Tue81%(302 flights)
  • Wed81%(313 flights)
  • Thu81%(364 flights)
  • Fri78%(373 flights)
  • Sat77%(375 flights)
  • Sun74%(371 flights)
On-time by departure window
  • 3–6 AM74%(42 flights)
  • 6–9 AM90%(747 flights)
  • 9 AM–12 PM85%(367 flights)
  • 12–3 PM76%(216 flights)
  • 3–6 PM69%(544 flights)
  • 6–9 PM69%(405 flights)
  • 9 PM–12 AM71%(150 flights)
On-time trend by month
81%
May

Jun 77% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%191
July 202577%201
August 202570%178
September 202579%158
October 202580%171
November 202580%204
December 202576%236
January 202679%246
February 202686%238
March 202674%277
April 202684%192
May 202681%179

Same trip, other airports

Keep nerding

Based on 2,510 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.