DEN · Denver International Airport
Denver, CO. All airports.
Share of flights 15+ min late, by month
departures
arrivals
usual for the month (departures)
Jan 2015 → Jul 2026; gridlines 10/20/30/40%
Recent months — departures
| Month | Flights | Late 15+ | vs usual | Cancelled | Avg min | Main cause |
|---|---|---|---|---|---|---|
| Jul 2026 | 29,503 | 31.1% | -4.6 | 0.8% | 24 | Late aircraft |
| Jun 2026 | 28,634 | 31.3% | -1.6 | 0.4% | 22 | Late aircraft |
| May 2026 | 27,406 | 23.9% | -5.2 | 0.3% | 15 | Late aircraft |
| Apr 2026 | 25,345 | 18.5% | -5.7 | 0.3% | 12 | Airline |
| Mar 2026 | 27,089 | 25.4% | +3.2 | 1.5% | 18 | Late aircraft |
| Feb 2026 | 23,046 | 19.7% | -3.4 | 0.9% | 15 | Late aircraft |
| Jan 2026 | 24,484 | 18.7% | -9.4 | 1.7% | 13 | Airline |
| Dec 2025 | 26,026 | 27.7% | +6.2 | 0.6% | 20 | Late aircraft |
| Nov 2025 | 25,280 | 16.9% | -1.5 | 1.4% | 11 | Late aircraft |
| Oct 2025 | 27,763 | 19.5% | -2.2 | 0.1% | 12 | Late aircraft |
| Sep 2025 | 26,548 | 19.6% | -1.7 | 0.1% | 12 | Late aircraft |
| Aug 2025 | 28,084 | 29.7% | +1.3 | 0.7% | 22 | Late aircraft |
| Jul 2025 | 29,433 | 35.8% | +3.2 | 1.5% | 30 | Late aircraft |
| Jun 2025 | 28,175 | 35.2% | +2.3 | 0.7% | 28 | Late aircraft |
| May 2025 | 26,894 | 30.6% | +5.1 | 0.7% | 24 | Late aircraft |
| Apr 2025 | 25,280 | 24.2% | +1.8 | 0.6% | 18 | Late aircraft |
| Mar 2025 | 26,655 | 18.9% | -3.3 | 0.6% | 12 | Late aircraft |
| Feb 2025 | 22,816 | 22.9% | -1.9 | 0.8% | 16 | Late aircraft |
| Jan 2025 | 24,732 | 23.4% | -4.7 | 1.3% | 15 | Late aircraft |
| Dec 2024 | 25,905 | 18.3% | -3.2 | 0.3% | 12 | Late aircraft |
| Nov 2024 | 25,224 | 18.5% | +0.1 | 1.4% | 12 | Airline |
| Oct 2024 | 26,929 | 14.3% | -7.4 | 0.4% | 9 | Airline |
| Sep 2024 | 26,146 | 16.5% | -4.7 | 0.2% | 11 | Late aircraft |
| Aug 2024 | 27,334 | 26.4% | -2.1 | 0.7% | 19 | Late aircraft |
Airlines here, Oct 2025 (departures)
| Airline | Flights | Late | Canc. |
|---|---|---|---|
| SkyWest | 6,403 | 12.3% | 0.0% |
| United | 9,375 | 13.6% | 0.1% |
| Delta | 1,024 | 16.3% | 0.5% |
| Alaska | 221 | 17.5% | 1.8% |
| Allegiant | 42 | 19.0% | 0.0% |
| Frontier | 2,106 | 19.8% | 0.2% |
| American | 782 | 22.4% | 0.6% |
| Southwest | 7,711 | 32.5% | 0.1% |
| JetBlue | 97 | 38.1% | 0.0% |
Airlines with 30+ departures that month.
Worst days on record
| Date | Flights | Late | Canc. |
|---|---|---|---|
| 2021-03-14 | 728 | 80% | 99% |
| 2016-12-17 | 611 | 97% | 34% |
| 2016-03-23 | 634 | 54% | 96% |
| 2021-03-15 | 723 | 86% | 74% |
| 2022-12-22 | 793 | 93% | 44% |
| 2015-12-15 | 566 | 92% | 41% |
| 2022-12-23 | 793 | 90% | 33% |
| 2022-01-01 | 670 | 91% | 16% |
| 2019-03-14 | 683 | 81% | 42% |
| 2019-03-13 | 671 | 9% | 85% |
| 2022-01-02 | 759 | 83% | 20% |
| 2016-12-18 | 630 | 82% | 8% |
Departures; ranked by share late or cancelled.
FAA programs, last 90 days
| Started (UTC) | What | Hours |
|---|---|---|
| 2026-10-15 14:15 | Ground stop | 1.0 |
| 2026-10-14 19:45 | Ground delay program | 7.2 |