Airport reliability
Philadelphia (PHL) on-time performance
How reliably flights leave Philadelphia, PA (PHL) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Philadelphia, PA101,709 departures in 12 months
- Departures on time
- 72.7% U.S. average 75.6%
- Cancelled
- 3.1% U.S. average 1.9%
- 60+ minutes late
- 10.0% U.S. average 8.1%
- Scheduled departures
- 101,709 12 months
What this means
PHL departures ran below the U.S. average.
- 72.7% of the 101,709 scheduled departures from Philadelphia (PHL) arrived at their destination on time, 2.9 points lower than the U.S. average of 75.6%.
- 3.1% of departures were cancelled (U.S. average 1.9%), and 10.0% arrived an hour or more late.
- Flights arriving at PHL were on time 74.2% of the time.
- Among airlines with at least 300 departures, Delta Air Lines was the most punctual from PHL (79.8%) and Frontier Airlines the least (65.5%).
- Over the last 3 years, November was the most reliable month for departures from PHL (82.7% on time) and July the least reliable (62.3%).
- Cancellations peaked in July, when 4.9% of flights were cancelled.
- Flights scheduled to depart 6 am to 7 am were the most punctual (84.9% on time); flights scheduled to depart 5 pm to 6 pm were the least (60.3%).
Airlines at PHL
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Delta Air Lines | 79.8% | 2.7% | 7.2% | 91 min | 6,525 |
| Republic AirwaysSold as American Eagle, Delta Connection, United Express | 79.5% | 3.2% | 7.4% | 78 min | 6,782 |
| United Airlines | 75.3% | 1.3% | 9.3% | 94 min | 4,503 |
| American Airlines | 73.9% | 2.5% | 9.5% | 79 min | 46,621 |
| Southwest Airlines | 69.9% | 1.5% | 8.7% | 63 min | 5,129 |
| Spirit Airlines | 69.8% | 5.7% | 9.4% | 69 min | 1,658 |
| PSA AirlinesSold as American Eagle | 69.3% | 5.5% | 11.7% | 88 min | 18,372 |
| JetBlue Airways | 68.7% | 3.6% | 11.1% | 79 min | 1,781 |
| Alaska Airlines | 66.1% | 1.6% | 9.4% | 60 min | 768 |
| Frontier Airlines | 65.5% | 2.9% | 13.5% | 85 min | 9,389 |
| SkyWest AirlinesSold as United Express, Delta Connection, American Eagle, Alaska | 64.8% | 2.2% | 20.9% | 180 min | 91 |
| Allegiant Air | 48.9% | 2.2% | 32.2% | 117 min | 90 |
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On-time rate by departure hour
Share of scheduled flights on time PHL average 72.7%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing before 6 am | 84.7% | 2,545 |
| Departing 6 am to 7 am | 84.9% | 5,119 |
| Departing 7 am to 8 am | 81.8% | 4,964 |
| Departing 8 am to 9 am | 80.4% | 11,091 |
| Departing 9 am to 10 am | 80.6% | 4,510 |
| Departing 10 am to 11 am | 80.8% | 9,187 |
| Departing 11 am to noon | 76.0% | 4,816 |
| Departing noon to 1 pm | 74.8% | 4,736 |
| Departing 1 pm to 2 pm | 72.0% | 5,797 |
| Departing 2 pm to 3 pm | 69.2% | 3,916 |
| Departing 3 pm to 4 pm | 67.7% | 7,110 |
| Departing 4 pm to 5 pm | 66.8% | 4,857 |
| Departing 5 pm to 6 pm | 60.3% | 6,412 |
| Departing 6 pm to 7 pm | 64.7% | 8,937 |
| Departing 7 pm to 8 pm | 65.3% | 7,911 |
| Departing 8 pm to 9 pm | 62.2% | 3,799 |
| Departing 9 pm to 10 pm | 68.6% | 4,249 |
| Departing 10 pm to 11 pm | 64.7% | 1,614 |
| Departing 11 pm to midnight | 68.3% | 139 |
Best and worst months at PHL
Share of scheduled flights on time 12-month average 72.7%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 71.3% | 20,680 |
| February | 77.5% | 19,603 |
| March | 77.9% | 22,921 |
| April | 79.4% | 25,188 |
| May | 74.0% | 26,857 |
| June | 69.4% | 27,780 |
| July | 62.3% | 28,993 |
| August | 65.8% | 29,397 |
| September | 79.6% | 25,579 |
| October | 82.6% | 27,118 |
| November | 82.7% | 22,435 |
| December | 74.2% | 21,979 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 81.3% | 8,225 |
| Oct 2025 | 77.0% | 9,306 |
| Nov 2025 | 76.2% | 7,499 |
| Dec 2025 | 63.6% | 7,468 |
| Jan 2026 | 69.4% | 7,049 |
| Feb 2026 | 75.1% | 6,686 |
| Mar 2026 | 73.9% | 7,778 |
| Apr 2026 | 80.1% | 8,692 |
| May 2026 | 79.6% | 9,251 |
| Jun 2026 | 72.1% | 9,707 |
| Jul 2026 | 62.0% | 10,012 |
| Aug 2026 | 63.9% | 10,036 |
Busiest routes from PHL
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Atlanta (ATL) | 75.3% | 3.1% | 6 | 5,793 |
| Orlando (MCO) | 70.2% | 2.7% | 4 | 5,338 |
| Chicago (ORD) | 70.1% | 3.6% | 4 | 5,075 |
| Boston (BOS) | 72.0% | 3.4% | 4 | 5,035 |
| Fort Lauderdale (FLL) | 70.5% | 3.3% | 4 | 3,588 |
| Charlotte (CLT) | 77.8% | 2.7% | 4 | 3,535 |
| Dallas/Fort Worth (DFW) | 74.9% | 3.4% | 2 | 3,479 |
| Miami (MIA) | 74.6% | 2.9% | 3 | 3,286 |
| Denver (DEN) | 71.8% | 1.5% | 4 | 3,060 |
| Detroit (DTW) | 75.9% | 3.9% | 7 | 3,000 |
| Nashville (BNA) | 72.2% | 3.0% | 6 | 2,852 |
| Raleigh/Durham (RDU) | 72.5% | 3.3% | 4 | 2,665 |
| Tampa (TPA) | 70.7% | 2.3% | 3 | 2,660 |
| Los Angeles (LAX) | 76.8% | 1.6% | 3 | 2,380 |
| Phoenix (PHX) | 78.7% | 1.7% | 1 | 2,306 |
| Minneapolis (MSP) | 74.6% | 4.3% | 5 | 2,086 |
| San Francisco (SFO) | 70.9% | 1.2% | 2 | 2,085 |
| San Juan (SJU) | 61.0% | 3.4% | 4 | 1,992 |
| Houston (IAH) | 79.9% | 1.9% | 5 | 1,878 |
| St. Louis (STL) | 75.9% | 2.1% | 4 | 1,610 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from Philadelphia, PA (PHL) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.