Route · DEN → PHL · 2020–2025 BTS data
Denver to Philadelphia
The DEN–PHL corridor (Denver, CO → Philadelphia, PA) runs behind the national average, served by 20 carriers across roughly 1,558 miles.
Data updated 2026-06-13
- 74.8%
- On-time
- -4.2 pts
- vs US avg
- 71 min
- Delay when late
- 15,251
- Flights
Cancelled
1.0%
Best Month
Oct 2024 86%
Worst Month
Jun 2025 59%
Distance
1,558 mi
Carriers
20
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 235 | 69 | 5 | 0 | WN,F9,AA,UA |
| Nov 2025 | 238 | 37 | 0 | 0 | UA,F9,AA,WN |
| Oct 2025 | 249 | 66 | 0 | 0 | AA,UA,WN,F9 |
| Sep 2025 | 282 | 66 | 0 | 0 | UA,WN,F9,AA |
| Aug 2025 | 310 | 99 | 2 | 2 | AA,WN,F9,UA |
| Jul 2025 | 317 | 113 | 8 | 3 | AA,UA,WN,F9 |
| Jun 2025 | 306 | 124 | 3 | 1 | AA,UA,WN,F9 |
| May 2025 | 258 | 86 | 2 | 0 | AA,UA,WN,F9 |
| Apr 2025 | 217 | 58 | 2 | 1 | F9,UA,WN,AA |
| Mar 2025 | 243 | 51 | 2 | 1 | AA,UA,WN,F9 |
| Feb 2025 | 182 | 35 | 4 | 0 | AA,UA,WN,F9 |
| Jan 2025 | 197 | 45 | 2 | 0 | AA,UA,WN,F9 |
| Dec 2024 | 223 | 37 | 0 | 0 | AA,F9,UA,WN |
| Nov 2024 | 221 | 51 | 3 | 1 | UA,WN,F9,AA |
| Oct 2024 | 250 | 34 | 0 | 1 | UA,WN,F9,AA |
| Sep 2024 | 279 | 57 | 0 | 0 | WN,UA,AA,F9 |
| Aug 2024 | 296 | 83 | 5 | 4 | AA,F9,WN,UA |
| Jul 2024 | 309 | 101 | 9 | 2 | AA,F9,UA,WN |
| Jun 2024 | 298 | 88 | 6 | 1 | AA,F9,UA,WN |
| May 2024 | 287 | 82 | 1 | 0 | AA,F9,UA,WN |
| Apr 2024 | 258 | 48 | 1 | 0 | AA,F9,UA,WN |
| Mar 2024 | 202 | 53 | 2 | 0 | AA,F9,UA,WN |
| Feb 2024 | 164 | 49 | 0 | 0 | AA,UA,WN |
| Jan 2024 | 200 | 54 | 5 | 0 | AA,F9,WN,UA |
Cancellation Rate
1.0%
62 of 6,021 flights
Diversion Rate
0.3%
17 of 6,021 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
Origin airport →PHL - Philadelphia
Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.
Destination airport →Compare the two airports
See DEN and PHL side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to DEN–PHL.
Routes with a similar on-time rate
What the Data Says About DEN to PHL
On-time performance on the DEN to PHL pairing (Denver to Philadelphia) trails a chunk of the network: 74.8% of 15,251 tracked flights arrived on schedule, with a 70.8-minute average delay on the ones that ran late. The route spans about 1,558 miles across 20 carriers. Cancellations over the trailing 24 months hit 1.0% (62 of 6,021 flights), with 0.3% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 86% on-time, while Jun 2025 came in at just 59% - a 27-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.
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.