Airports › Denver (DEN) › April 2026
Airport month · April 2026
Denver International in April 2026
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In April 2026, reporting carriers scheduled 25,345 domestic departures from Denver International (DEN). 81.2% left less than 15 minutes late and 82.0% reached their destination on time; 0.3% were cancelled.
Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so DEN departures were 2.1 points above the national departure figure.
A year earlier, in April 2025, the airport had 25,280 departures with 75.3% leaving on time: a change of +5.9 points, with flights up 0%.
Flights arriving at DEN that month were on time 83.5% of the time (25,350 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 38%, late-arriving aircraft 36% and national aviation system 19%.
- On time 82.0%
- Arrived 15+ minutes late 17.5%
- Cancelled 0.3%
- Diverted 0.2%
April 2026 against a year earlier, the airport's year and the nation
| Measure | Apr 2026 | Apr 2025 | DEN, 12 months to Jul 2026 | All reported flights, Apr 2026 |
|---|---|---|---|---|
| Departed on time | 81.2% | 75.3% | 75.7% | 79.1% |
| Arrived on time | 82.0% | 74.4% | 76.1% | 78.9% |
| Cancelled | 0.3% | 0.6% | 0.7% | 0.9% |
| Average departure delay (late minutes only) | 11.6 min | 18.4 min | 16.5 min | 14.5 min |
| Scheduled departures a day | 845 | 843 | 875 | 19,931 |
| Scheduled departures | 25,345 | 25,280 | 319,208 | 597,919 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| UA United Airlines | 8,319 | 33% | 86.8% | -2.6 min | 0.1% |
| WN Southwest Airlines | 7,198 | 28% | 73.6% | 7.0 min | 0.2% |
| OO SkyWest Airlines | 6,093 | 24% | 84.1% | 0.4 min | 0.4% |
| F9 Frontier Airlines | 1,717 | 7% | 82.2% | -1.4 min | 0.7% |
| DL Delta Air Lines | 913 | 4% | 89.4% | -5.2 min | 0.2% |
| AA American Airlines | 747 | 3% | 82.3% | 12.7 min | 1.6% |
| AS Alaska Airlines | 220 | 1% | 90.0% | -7.3 min | 0.0% |
| B6 JetBlue Airways | 75 | 0% | 76.0% | 3.2 min | 0.0% |
| MQ Envoy Air | 55 | 0% | 85.5% | -3.7 min | 1.8% |
| G4 Allegiant Air | 8 | 0% | 87.5% | -7.2 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| DEN–PHX | Denver to Phoenix | 824 | 84.5% | -0.4 min | 0.4% |
| DEN–LAS | Denver to Las Vegas | 646 | 78.8% | 3.7 min | 0.5% |
| DEN–SLC | Denver to Salt Lake City | 639 | 81.7% | 1.2 min | 0.0% |
| DEN–LAX | Denver to Los Angeles | 630 | 81.9% | 1.4 min | 0.0% |
| DEN–SAN | Denver to San Diego | 508 | 83.9% | -1.0 min | 0.2% |
| DEN–ORD | Denver to Chicago | 493 | 72.6% | 23.2 min | 2.2% |
| DEN–DFW | Denver to Dallas/Fort Worth | 489 | 80.4% | 6.3 min | 1.2% |
| DEN–SEA | Denver to Seattle | 469 | 83.8% | -0.3 min | 0.2% |
| DEN–AUS | Denver to Austin | 447 | 85.0% | -0.8 min | 0.0% |
| DEN–ATL | Denver to Atlanta | 442 | 87.8% | -1.1 min | 0.2% |
| DEN–MSP | Denver to Minneapolis | 441 | 88.9% | -5.7 min | 0.2% |
| DEN–SFO | Denver to San Francisco | 426 | 59.4% | 17.4 min | 0.5% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left DEN on time in April 2026?
81.2% of 25,345 scheduled domestic departures left less than 15 minutes late, and 82.0% reached their destination on time. The national figures that month were 79.1% and 78.9%.
How does that compare with a year earlier?
In April 2025, 75.3% of 25,280 departures left on time and 0.6% were cancelled, against 81.2% and 0.3% in April 2026.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for DEN · methodology · corrections.