PHL · Philadelphia International Airport
Philadelphia, PA. 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 | 10,012 | 35.0% | +3.4 | 5.7% | 33 | Late aircraft |
| Jun 2026 | 9,707 | 26.0% | -0.6 | 2.7% | 23 | Late aircraft |
| May 2026 | 9,251 | 19.2% | -0.5 | 1.1% | 15 | Late aircraft |
| Apr 2026 | 8,692 | 19.4% | -0.2 | 0.7% | 16 | Late aircraft |
| Mar 2026 | 7,778 | 23.9% | +6.2 | 3.1% | 21 | Late aircraft |
| Feb 2026 | 6,686 | 19.9% | +6.0 | 6.1% | 15 | Late aircraft |
| Jan 2026 | 7,049 | 22.2% | +4.6 | 7.9% | 20 | Late aircraft |
| Dec 2025 | 7,468 | 29.5% | +8.5 | 2.4% | 26 | Late aircraft |
| Nov 2025 | 7,499 | 20.3% | +7.1 | 2.0% | 18 | Late aircraft |
| Oct 2025 | 9,306 | 21.4% | +7.5 | 0.4% | 17 | Late aircraft |
| Sep 2025 | 8,225 | 18.6% | +4.6 | 0.5% | 13 | Late aircraft |
| Aug 2025 | 9,120 | 28.0% | +5.4 | 1.3% | 23 | Late aircraft |
| Jul 2025 | 9,013 | 33.4% | +9.1 | 5.2% | 35 | Late aircraft |
| Jun 2025 | 8,699 | 29.8% | +5.1 | 3.2% | 28 | Late aircraft |
| May 2025 | 8,866 | 25.5% | +5.8 | 2.0% | 21 | Late aircraft |
| Apr 2025 | 8,603 | 20.7% | +2.9 | 0.6% | 17 | Late aircraft |
| Mar 2025 | 7,673 | 17.9% | +1.0 | 1.5% | 16 | Late aircraft |
| Feb 2025 | 6,359 | 19.3% | +5.4 | 3.4% | 15 | Late aircraft |
| Jan 2025 | 6,688 | 17.6% | +1.6 | 2.8% | 16 | Late aircraft |
| Dec 2024 | 7,464 | 22.6% | +4.9 | 0.5% | 18 | Late aircraft |
| Nov 2024 | 7,598 | 13.2% | -1.1 | 0.1% | 10 | Late aircraft |
| Oct 2024 | 9,363 | 13.3% | -0.9 | 1.0% | 11 | Late aircraft |
| Sep 2024 | 9,023 | 16.0% | +2.0 | 0.5% | 12 | Late aircraft |
| Aug 2024 | 10,241 | 31.4% | +8.8 | 4.9% | 29 | Late aircraft |
Airlines here, Nov 2025 (departures)
| Airline | Flights | Late | Canc. |
|---|---|---|---|
| Republic | 534 | 12.3% | 2.2% |
| United | 381 | 13.8% | 0.8% |
| Delta | 527 | 15.1% | 2.1% |
| Alaska | 58 | 15.5% | 0.0% |
| Spirit | 203 | 17.8% | 3.0% |
| American | 3,185 | 19.3% | 1.9% |
| Frontier | 778 | 22.4% | 2.4% |
| JetBlue | 146 | 23.1% | 2.1% |
| PSA | 1,222 | 26.1% | 2.0% |
| Southwest | 465 | 29.1% | 2.6% |
Airlines with 30+ departures that month.
Worst days on record
| Date | Flights | Late | Canc. |
|---|---|---|---|
| 2016-01-23 | 156 | — | 100% |
| 2026-01-25 | 236 | 0% | 97% |
| 2017-03-14 | 210 | 60% | 88% |
| 2026-01-26 | 237 | 89% | 54% |
| 2015-03-05 | 201 | 72% | 63% |
| 2026-02-23 | 258 | 31% | 85% |
| 2022-01-29 | 189 | 62% | 72% |
| 2016-01-24 | 180 | 62% | 65% |
| 2015-01-27 | 188 | 0% | 86% |
| 2018-03-21 | 322 | 33% | 77% |
| 2018-01-04 | 299 | 47% | 67% |
| 2025-12-14 | 251 | 77% | 10% |
Departures; ranked by share late or cancelled.
FAA programs, last 90 days
| Started (UTC) | What | Hours |
|---|---|---|
| 2026-10-19 13:45 | Departure delays | 1.5 |
| 2026-10-16 22:00 | Departure delays | 6.0 |
| 2026-10-16 21:15 | Ground stop | 1.0 |
| 2026-10-16 15:45 | Ground delay program | 8.5 |
| 2026-10-16 14:15 | Departure delays | 2.5 |