Route · ATL → PHL · 2020–2025 BTS data
Atlanta to Philadelphia
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ATL to PHL (Atlanta to Philadelphia) ranks #99 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 80.2%
- On-time
- +1.2 pts
- vs US avg
- 75 min
- Delay when late
- 32,104
- Flights
- #99 of 4927
- Corpus placement
Cancelled
1.6%
Best Month
Feb 2024 90%
Worst Month
Jun 2025 58%
Distance
666 mi
Carriers
45
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 460 | 145 | 17 | 0 | DL,YX,OH,F9,NK,AA |
| Nov 2025 | 465 | 100 | 19 | 0 | DL,F9,NK,OH,AA |
| Oct 2025 | 474 | 106 | 1 | 0 | AA,DL,OH,YX,F9,NK |
| Sep 2025 | 436 | 68 | 2 | 1 | OH,DL,NK,YX,F9,AA |
| Aug 2025 | 506 | 124 | 11 | 1 | AA,YX,F9,NK,OH,DL |
| Jul 2025 | 528 | 215 | 19 | 1 | AA,DL,NK,OH,YX,F9 |
| Jun 2025 | 514 | 218 | 17 | 1 | AA,DL,NK,OH,YX,F9 |
| May 2025 | 487 | 169 | 7 | 0 | AA,DL,NK,OH,YX,F9 |
| Apr 2025 | 470 | 123 | 2 | 0 | DL,F9,NK,OH,WN,YX |
| Mar 2025 | 474 | 110 | 7 | 0 | DL,OH,NK,WN,YX,F9 |
| Feb 2025 | 409 | 103 | 4 | 0 | OH,WN,DL,F9,NK |
| Jan 2025 | 417 | 112 | 23 | 0 | DL,OH,WN,F9,NK |
| Dec 2024 | 512 | 142 | 0 | 0 | AA,DL,F9,NK,OH,WN,YX |
| Nov 2024 | 477 | 89 | 0 | 1 | NK,WN,DL,OH,F9,AA |
| Oct 2024 | 490 | 90 | 0 | 0 | DL,YX,NK,F9,WN,AA,OH |
| Sep 2024 | 484 | 92 | 3 | 0 | WN,YX,OH,AA,DL,F9,NK |
| Aug 2024 | 521 | 164 | 10 | 3 | AA,DL,F9,NK,WN |
| Jul 2024 | 520 | 179 | 26 | 1 | AA,DL,F9,NK,WN |
| Jun 2024 | 506 | 121 | 4 | 1 | AA,DL,F9,NK,WN |
| May 2024 | 533 | 160 | 6 | 0 | AA,DL,F9,NK,OH,WN |
| Apr 2024 | 497 | 103 | 1 | 0 | AA,DL,F9,NK,OH,WN,YX |
| Mar 2024 | 464 | 90 | 0 | 0 | AA,DL,F9,NK,OH,WN,YX |
| Feb 2024 | 395 | 39 | 1 | 0 | AA,DL,F9,NK,OH,WN,YX |
| Jan 2024 | 421 | 87 | 2 | 0 | AA,DL,F9,WN,YX,NK,OH |
ATL–PHL seasonal on-time pattern
Best: September (85.7%) · weakest: July (69.9%)
Strongest calendar month
September
85.7% on-time · ~446 flights/mo
Busiest calendar month
August
~487 flights/mo avg
Weakest calendar month
July
69.9% on-time · ~478 flights/mo
Cancellation Rate
1.6%
182 of 11,460 flights
Diversion Rate
0.1%
10 of 11,460 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ATL - Atlanta
Full on-time, delay-cause, and seasonal performance for Atlanta, GA.
ATL on-time profilePHL - Philadelphia
Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.
PHL on-time profileCompare the two airports
See ATL and PHL side by side on delays, cancellations, and reliability.
Compare ATL vs PHLOrigin-hub reliability standing
Mid-pack among ATL departures
From ATL, this corridor sits with 75 other 75–85% on-time routes out of 144 tracked departures, not the hub's reliability leaders (67 at ≥85%) and not the softest ( 2 below 75%). Destination: Philadelphia · fleet on-time rank #3048 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to ATL–PHL.
Routes with a similar on-time rate
What the Data Says About ATL to PHL
32,104 tracked flights put the ATL to PHL pairing (Atlanta to Philadelphia) at a 80.2% on-time rate, squarely in line with the wider network. Delays that do occur run 74.5 minutes on average. Across the 666-mile route and its 45 carriers, the trailing 24 months show 1.6% cancelled and 0.1% diverted (11,460 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 90% on-time, while Jun 2025 came in at just 58% - a 33-point swing worth factoring into travel timing.
On the multi-year calendar, ATL–PHL peaks in September at 85.7% on-time while August carries the heaviest traffic (~487 flights per month) ; the softest month is July at 69.9%, a 15.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does ATL to PHL rank among US routes by traffic? ▼
How often are flights delayed from ATL to PHL? ▼
What is the cancellation rate for ATL to PHL? ▼
How far is the flight from ATL to PHL? ▼
When is the best time to fly from ATL to PHL? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using ATL–PHL data
ATL–PHL is mid-pack at 80.2% on-time; month and carrier mix move more than the corridor headline.
- Compare ATL and PHL airport profiles: delay causes and top routes differ even on the same corridor. ATL airport
- If your dates flex, September (85.7% on-time) beats July (69.9%) on this corridor. Seasonal chart
- 4 other routes post a similar 80.2% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.