Route Reliability
Philadelphia → Atlanta
PHL–ATL · 666 miles · Philadelphia International Airport to Hartsfield–Jackson Atlanta International Airport
- 78%
- Arrive within 15 minutes
- 5 min
- Average arrival delay
- 2.8%
- Cancelled
- 5,685
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Delta Air Lines84%3,043 flights
- 2.American Airlines77%1,555 flights
- 3.Frontier Airlines65%974 flights
- 4.Spirit Airlines62%113 flights
What the data says
Morning flights do better here.
PHL–ATL flights departing between 9 AM–12 PM arrived on time 87% of the time, versus 67% between 6–9 PM.
Sunday scaries are real for this one.
PHL–ATL flights arrived on time 87% of the time on Wednesdays. On Sundays: 72%.
Delta Air Lines has a clear lead on this route.
Delta Air Lines arrived on time 84% of the time on this route; Spirit Airlines managed 62%.
Ticking up lately.
PHL–ATL flights arrived on time 81% of the time over the last three months in the data, compared with 78% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon75%(853 flights)
- Tue80%(738 flights)
- Wed87%(751 flights)
- Thu79%(851 flights)
- Fri78%(837 flights)
- Sat77%(647 flights)
- Sun72%(833 flights)
- 3–6 AM83%(567 flights)
- 6–9 AM86%(1140 flights)
- 9 AM–12 PM87%(645 flights)
- 12–3 PM78%(1117 flights)
- 3–6 PM75%(821 flights)
- 6–9 PM67%(1113 flights)
- 9 PM–12 AM72%(107 flights)
Jun 67% → May 78% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 67% | 501 |
| July 2025 | 69% | 508 |
| August 2025 | 78% | 497 |
| September 2025 | 89% | 434 |
| October 2025 | 83% | 472 |
| November 2025 | 81% | 448 |
| December 2025 | 70% | 436 |
| January 2026 | 77% | 401 |
| February 2026 | 86% | 383 |
| March 2026 | 80% | 436 |
| April 2026 | 85% | 484 |
| May 2026 | 78% | 510 |
Keep nerding
Based on 5,685 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.