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Route · PIT → DEN · 2020–2025 BTS data

Pittsburgh to Denver

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PIT to DEN (Pittsburgh to Denver) ranks #1319 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

83%
On-time
+4 pts
vs US avg
63 min
Delay when late
9,100
Flights
#1319 of 4927
Corpus placement

Cancelled

0.4%

Best Month

Sep 2024 94%

Worst Month

Jun 2025 68%

Distance

1,290 mi

Carriers

12

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 139 37 1 0 WN,F9,UA
Nov 2025 158 10 0 0 UA,F9,WN
Oct 2025 178 18 1 0 UA,WN,F9
Sep 2025 167 23 0 0 UA,WN
Aug 2025 177 38 1 1 WN,F9,UA
Jul 2025 185 47 1 3 UA,WN,F9
Jun 2025 170 55 0 2 UA,WN,F9
May 2025 136 34 0 0 UA,WN,F9
Apr 2025 126 20 0 0 UA,WN
Mar 2025 121 12 0 0 UA,WN
Feb 2025 97 26 0 0 UA,WN,F9
Jan 2025 110 30 0 0 UA,WN,F9
Dec 2024 136 27 1 0 F9,UA,WN
Nov 2024 125 20 0 0 UA,WN,F9
Oct 2024 167 17 1 0 UA,WN,F9
Sep 2024 175 10 0 0 WN,UA,F9
Aug 2024 178 33 0 1 F9,WN,UA
Jul 2024 186 33 3 1 F9,UA,WN
Jun 2024 177 27 0 0 F9,UA,WN
May 2024 164 38 1 0 F9,UA,WN
Apr 2024 146 33 0 0 F9,UA,WN
Mar 2024 133 13 4 0 UA,WN
Feb 2024 108 15 0 1 UA,WN
Jan 2024 124 18 1 0 WN,UA

PIT–DEN seasonal on-time pattern

Best: September (90.0%) · weakest: June (75.3%)

70%75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 80.5%

Strongest calendar month

September

90.0% on-time · ~149 flights/mo

Busiest calendar month

August

~152 flights/mo avg

Weakest calendar month

June

75.3% on-time · ~131 flights/mo

Cancellation Rate

0.4%

15 of 3,583 flights

Diversion Rate

0.3%

9 of 3,583 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

PIT - Pittsburgh

Full on-time, delay-cause, and seasonal performance for Pittsburgh, PA.

PIT on-time profile

DEN - Denver

Full on-time, delay-cause, and seasonal performance for Denver, CO.

DEN on-time profile

Compare the two airports

See PIT and DEN side by side on delays, cancellations, and reliability.

Compare PIT vs DEN

Origin-hub reliability standing

Mid-pack among PIT departures

From PIT, this corridor sits with 19 other 75–85% on-time routes out of 33 tracked departures, not the hub's reliability leaders (13 at ≥85%) and not the softest ( 1 below 75%). Destination: Denver · fleet on-time rank #1957 of 4927.

What the Data Says About PIT to DEN

Bureau of Transportation Statistics records show Pittsburgh to Denver (PIT to DEN) running a 83% on-time rate over 9,100 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 63.4 minutes. The 1,290-mile corridor is served by 12 carriers, and over the last 24 months 0.4% of 3,583 flights were cancelled, 0.3% diverted.

The monthly split is wide on this route: Sep 2024 posted the strongest performance at 94% on-time, while Jun 2025 came in at just 68% - a 27-point swing worth factoring into travel timing.

On the multi-year calendar, PIT–DEN peaks in September at 90.0% on-time while August carries the heaviest traffic (~152 flights per month) ; the softest month is June at 75.3%, a 14.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does PIT to DEN rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, PIT to DEN ranks #1319 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from PIT to DEN? ▼
Flights from Pittsburgh to Denver have a 83% on-time rate based on 9,100 flights. The average delay is 63.4 minutes. The best recent month was Sep 2024 with 94% on-time.
What is the cancellation rate for PIT to DEN? ▼
Over the last 24 months, 0.4% of flights on this route were cancelled (15 of 3,583 flights) and 0.3% were diverted.
How far is the flight from PIT to DEN? ▼
The flight distance from Pittsburgh (PIT) to Denver (DEN) is approximately 1,290 miles. This route is served by 12 carriers.
When is the best time to fly from PIT to DEN? ▼
The best recent month for on-time performance was Sep 2024 (94% on-time). The worst was Jun 2025 (68% on-time). Consider booking during months with historically better performance.

Airports on this route

PIT Airport

Pittsburgh
DEN Airport

Denver
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using PIT–DEN data

PIT–DEN runs 4 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare PIT and DEN airport profiles: delay causes and top routes differ even on the same corridor. PIT airport
  • If your dates flex, September (90.0% on-time) beats June (75.3%) on this corridor. Seasonal chart
  • 4 other routes post a similar 83% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.