Carrier route record
YXATL→PHL
Republic Airways · Atlanta to Philadelphia
- Flights
- 156
- Period
- July 2025 to June 2026
- Share of route
- 3%
- Carriers
- 6
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.
Republic on ATL to PHL earns an A−. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 13 points better than the national rate of 77.6%. When something does go wrong the average delay runs an hour and a half. That rests on 156 flights. The strongest carrier on the route with a full sample, PSA Airlines, flew 834 at 81.5% on time.
Set against the rest of the country, Republic's ATL to PHL record is 13 points better than the US average of 77.6%. That gap is worth roughly 131 fewer late arrivals for every thousand flights.
Key figures
On time
90.7%
Arrivals under 15 minutes late, of 150 completed flights
Avg delay
95 min
Across delayed arrivals only, not all flights
Cancelled
3.85%
National rate is 1.81%
Whole route
74.9%
Every carrier on ATL to PHL, 5,713 flights
These figures cover 156 flights between July 2025 and June 2026. The median arrival is 15 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
Republic against every carrier on ATL to PHL
Republic flew 156 of the 5,713 flights on ATL to PHL, about 3% of it. Its 90.7% on time is 16 points better than the route as a whole, which runs 74.9%. Ranked by on-time rate it is first of six carriers on the route, where the range runs from Republic at 90.7% to Frontier at 62.4%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The choice of carrier is not cosmetic here. PSA Airlines arrives on time 81.5% of the time; Frontier Airlines manages 62.4%. Sample sizes sit next to every figure, because a two-point gap across 1,010 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways (this page)thin sample | 156 | 90.7% | 95 min | 3.85% | A− |
| PSA Airlines | 834 | 81.5% | 98 min | 4.56% | B− |
| American Airlines | 592 | 78.1% | 120 min | 2.03% | B |
| Delta Air Lines | 3,028 | 76.1% | 52 min | 2.48% | B |
| Spirit Airlinesthin sample | 93 | 65.2% | 72 min | 1.08% | C |
| Frontier Airlines | 1,010 | 62.4% | 84 min | 2.97% | D |
PSA Airlines cancels 4.6% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Departure window
When Republic runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 156 flights.
- 5am–8am28 flights—
- 8am–11am64 flights91.9%
- 11am–2pm35 flights94.3%
- 2pm–5pm14 flights—
- 5pm–8pm15 flights—
- 8pm–5am—
Scale runs 85% to 100%. Rows with fewer than 30 flights show a dash.
The 11am–2pm window is the strongest at 94.3% on time. The full set of windows spans 2 points.
Across the year
Republic on ATL to PHL through the year
- Jul–Sep 202574 flights90.1%
- Oct–Dec 202519 flights—
- Jan–Mar 202628 flights—
- Apr–Jun 202635 flights94.3%
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 90.7% on time across 156 flights.
Split by quarter, Republic on ATL to PHL logged 74 flights in Jul–Sep 2025, 19 flights in Oct–Dec 2025, 28 flights in Jan–Mar 2026 and 35 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 90.7% annual figure is the one to use.
Delay causes
Why Republic runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 64% of the 1,333 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 64%Late-arriving aircraft
- 18%Carrier
- 18%National Airspace System
64% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 1,333 reported delay minutes here, that single category outweighs weather by 64 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 1,333 reported delay minutes.
Cancellations run at 3.85%, against 1.81% nationally. That is about one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
5.3% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
The 666 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg runs 90.1% on time across 156 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 156 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Republic on ATL to PHL
Put together: the delay figures matter less here than the 3.85% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 11am–2pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 150 completed flights over 12 months sit behind that.
Related
Where to go next
- ATL to PHL, every carrier
- Republic on PHL to ATL, the return leg
- PSA Airlines on ATL to PHL81.5%
- American Airlines on ATL to PHL78.1%
- Delta Air Lines on ATL to PHL76.1%
- Frontier Airlines on ATL to PHL62.4%
- Republic Airways network-wide record
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Philadelphia International (PHL) delay statistics
- The US routes with the most cancellations
- Same route, different airline: where the carrier you pick matters most
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.