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Route Reliability

Denver → Pittsburgh

DEN–PIT · 1,290 miles · Denver International Airport to Pittsburgh International Airport

77
Usually Fine
WanderNerd Reliability Score
73%
Arrive within 15 minutes
12 min
Average arrival delay
0.6%
Cancelled
1,726
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.United Airlines79%905 flights
  2. 2.Southwest Airlines64%763 flights

Not enough history to rank: Frontier Airlines (58 flights). We rank airlines only after 100 flights on the route.

What the data says

Morning-you made the right choice.

DEN–PIT flights departing between 9 AM–12 PM arrived on time 82% of the time, versus 56% between 6–9 PM.

Skip Thursday if you can.

DEN–PIT flights arrived on time 78% of the time on Sundays. On Thursdays: 66%.

United Airlines runs this route best.

United Airlines arrived on time 79% of the time on this route; Southwest Airlines managed 64%.

Recent months have been rougher.

DEN–PIT flights arrived on time 74% of the time over the last three months in the data, compared with 85% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon71%(275 flights)
  • Tue73%(238 flights)
  • Wed73%(235 flights)
  • Thu66%(241 flights)
  • Fri73%(272 flights)
  • Sat75%(213 flights)
  • Sun78%(241 flights)
On-time by departure window
  • 6–9 AM73%(37 flights)
  • 9 AM–12 PM82%(713 flights)
  • 12–3 PM74%(261 flights)
  • 3–6 PM66%(478 flights)
  • 6–9 PM56%(220 flights)
  • 9 PM–12 AM—(6 flights)
On-time trend by month
73%
May

Jun 53% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202553%168
July 202559%181
August 202561%175
September 202573%167
October 202580%178
November 202584%157
December 202580%138
January 202684%103
February 202692%92
March 202668%120
April 202681%117
May 202673%119

Keep nerding

Based on 1,726 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.