Route · PHL → DEN · 2020–2025 BTS data
Philadelphia to Denver
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PHL to DEN (Philadelphia to Denver) ranks #601 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 80%
- On-time
- +1 pts
- vs US avg
- 75 min
- Delay when late
- 15,213
- Flights
- #601 of 4927
- Corpus placement
Cancelled
1.2%
Best Month
Oct 2024 95%
Worst Month
Dec 2025 56%
Distance
1,558 mi
Carriers
21
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 236 | 103 | 4 | 0 | WN,F9,AA,UA |
| Nov 2025 | 239 | 34 | 1 | 0 | UA,F9,AA,WN |
| Oct 2025 | 248 | 48 | 0 | 0 | AA,UA,WN,F9 |
| Sep 2025 | 283 | 45 | 1 | 1 | UA,WN,F9,AA |
| Aug 2025 | 309 | 71 | 2 | 4 | AA,WN,F9,UA |
| Jul 2025 | 317 | 95 | 8 | 5 | AA,UA,WN,F9 |
| Jun 2025 | 306 | 84 | 6 | 6 | AA,UA,WN,F9 |
| May 2025 | 259 | 72 | 3 | 3 | AA,UA,WN,F9 |
| Apr 2025 | 216 | 59 | 0 | 0 | F9,UA,WN,AA |
| Mar 2025 | 243 | 29 | 4 | 0 | AA,UA,WN,F9 |
| Feb 2025 | 182 | 49 | 5 | 0 | AA,UA,WN,F9 |
| Jan 2025 | 198 | 39 | 3 | 0 | AA,UA,WN,F9 |
| Dec 2024 | 222 | 44 | 0 | 0 | AA,F9,UA,WN |
| Nov 2024 | 219 | 45 | 3 | 0 | UA,WN,F9,AA |
| Oct 2024 | 250 | 13 | 0 | 0 | UA,WN,F9,AA |
| Sep 2024 | 281 | 43 | 0 | 0 | WN,UA,AA,F9 |
| Aug 2024 | 296 | 80 | 8 | 0 | AA,F9,WN,UA |
| Jul 2024 | 309 | 87 | 7 | 0 | AA,F9,UA,WN |
| Jun 2024 | 296 | 79 | 6 | 0 | AA,F9,UA,WN |
| May 2024 | 285 | 75 | 1 | 0 | AA,F9,UA,WN |
| Apr 2024 | 258 | 43 | 1 | 0 | AA,F9,UA,WN |
| Mar 2024 | 199 | 32 | 2 | 0 | AA,F9,UA,WN |
| Feb 2024 | 157 | 17 | 0 | 1 | AA,UA,WN |
| Jan 2024 | 198 | 46 | 5 | 0 | AA,F9,WN,UA |
PHL–DEN seasonal on-time pattern
Best: November (85.7%) · weakest: July (72.4%)
Strongest calendar month
November
85.7% on-time · ~200 flights/mo
Busiest calendar month
August
~264 flights/mo avg
Weakest calendar month
July
72.4% on-time · ~253 flights/mo
Cancellation Rate
1.2%
70 of 6,006 flights
Diversion Rate
0.3%
20 of 6,006 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PHL - Philadelphia
Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.
PHL on-time profileDEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
DEN on-time profileCompare the two airports
See PHL and DEN side by side on delays, cancellations, and reliability.
Compare PHL vs DENOrigin-hub reliability standing
Mid-pack among PHL departures
From PHL, this corridor sits with 60 other 75–85% on-time routes out of 65 tracked departures, not the hub's reliability leaders (4 at ≥85%) and not the softest ( 1 below 75%). Destination: Denver · fleet on-time rank #3153 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to PHL–DEN.
Routes with a similar on-time rate
What the Data Says About PHL to DEN
15,213 tracked flights put the PHL to DEN pairing (Philadelphia to Denver) at a 80% on-time rate, squarely in line with the wider network. Delays that do occur run 75.2 minutes on average. Across the 1,558-mile route and its 21 carriers, the trailing 24 months show 1.2% cancelled and 0.3% diverted (6,006 flights sampled).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 95% on-time, while Dec 2025 came in at just 56% - a 38-point swing worth factoring into travel timing.
On the multi-year calendar, PHL–DEN peaks in November at 85.7% on-time while August carries the heaviest traffic (~264 flights per month) ; the softest month is July at 72.4%, a 13.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does PHL to DEN rank among US routes by traffic? ▼
How often are flights delayed from PHL to DEN? ▼
What is the cancellation rate for PHL to DEN? ▼
How far is the flight from PHL to DEN? ▼
When is the best time to fly from PHL to DEN? ▼
Airports on this route
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 PHL–DEN data
PHL–DEN is mid-pack at 80% on-time; month and carrier mix move more than the corridor headline.
- Compare PHL and DEN airport profiles: delay causes and top routes differ even on the same corridor. PHL airport
- If your dates flex, November (85.7% on-time) beats July (72.4%) on this corridor. Seasonal chart
- 4 other routes post a similar 80% 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.
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.