PHL to ATL flight delays & on-time performance
Nonstop flights from Philadelphia International Airport to Hartsfield Jackson Atlanta International Airport · 666 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PHL or ATL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Philadelphia (PHL) to Atlanta (ATL) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 3% were cancelled, and 8% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (84% on time); Frontier Airlines was the least (66%).
- Departures scheduled around 6am did best (87% on time); around 1pm did worst (69%).
- Wednesday was the most reliable day to fly (87% on time) and Sunday the least (73%).
- The largest source of delay minutes was late-arriving aircraft (40%).
Which airline is most on time from PHL to ATL?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 88% | 2.5% | 12 min | 6.0% | 119 |
| Delta Air Lines | 84% | 3.0% | 11 min | 6.1% | 3,017 |
| PSA AirlinesRegional airline operating American Eagle flights. | 82% | 4.1% | 13 min | 6.6% | 859 |
| American Airlines | 69% | 2.2% | 21 min | 11.8% | 638 |
| Spirit Airlines | 68% | 4.2% | 18 min | 7.4% | 71 |
| Frontier Airlines | 66% | 2.6% | 25 min | 11.9% | 1,046 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am83%543 flights
- 6am87%401 flights
- 7am79%284 flights
- 8am84%554 flights
- 9am83%190 flights
- 10am87%425 flights
- 11am80%163 flights
- 12pm81%462 flights
- 1pm69%294 flights
- 2pm84%309 flights
- 3pm76%301 flights
- 4pm73%331 flights
- 5pm71%333 flights
- 6pm71%411 flights
- 7pm73%523 flights
- 8pm67%73 flights
- 9pm78%144 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%4.6% cancelled
- Tuesday83%2.7% cancelled
- Wednesday87%1.2% cancelled
- Thursday79%0.7% cancelled
- Friday80%2.9% cancelled
- Saturday75%3.3% cancelled
- Sunday73%5.5% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft40%
- Airline (crew, maintenance, cleaning, fueling)32%
- Air traffic control & airport congestion24%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather51%
- Airline (crew, maintenance, cleaning, fueling)45%
- Air traffic control & airport congestion5%
- Security0%
PHL to ATL: common questions
- How often are PHL to ATL flights on time?
- 79% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Philadelphia to Atlanta cancelled?
- 3.0% of scheduled flights were cancelled (173 of 5,750).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 69 min behind schedule on average, and 7.9% of flights were an hour or more late.
- How long is taxi time at PHL?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ATL to PHL — 75% on time
More flights from Philadelphia
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PHL → ATL, nonstop flights by US airlines that report to the DOT. How we calculate this.