Carrier route record
YXPHL→RDU
Republic Airways · Philadelphia to Raleigh
- Flights
- 215
- Period
- July 2025 to June 2026
- Share of route
- 8%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.
Republic on PHL to RDU lands a B−, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 215 flights. The strongest carrier on the route with a full sample, Frontier Airlines, flew 585 at 81.2% on time.
Set against the rest of the country, Republic's PHL to RDU record is 6 points better than the US average of 77.6%. That gap is worth roughly 56 fewer late arrivals for every thousand flights.
Key figures
On time
83.2%
Arrivals under 15 minutes late, of 208 completed flights
Avg delay
75 min
Across delayed arrivals only, not all flights
Cancelled
3.26%
National rate is 1.81%
Whole route
75.0%
Every carrier on PHL to RDU, 2,560 flights
These figures cover 215 flights between July 2025 and June 2026. The median arrival is 12 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 PHL to RDU
Republic flew 215 of the 2,560 flights on PHL to RDU, about 8% of it. Its 83.2% on time is 8 points better than the route as a whole, which runs 75.0%. Ranked by on-time rate it is first of four carriers on the route, where the range runs from Republic at 83.2% to American at 71.3%.
The choice of carrier is not cosmetic here. Frontier Airlines arrives on time 81.2% of the time; American Airlines manages 71.3%. Sample sizes sit next to every figure, because a two-point gap across 1,105 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways (this page)thin sample | 215 | 83.2% | 75 min | 3.26% | B− |
| Frontier Airlines | 585 | 81.2% | 68 min | 2.56% | B |
| PSA Airlines | 655 | 72.9% | 80 min | 3.51% | C− |
| American Airlines | 1,105 | 71.3% | 81 min | 2.35% | C |
PSA Airlines cancels 3.5% 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 matters more here than the choice of carrier. The gap between the best and worst window is 13 points, against 10 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am—
- 8am–11am84 flights95.1%
- 11am–2pm19 flights—
- 2pm–5pm73 flights81.7%
- 5pm–8pm31 flights—
- 8pm–5am8 flights—
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 95.1% of the time, against 81.7% for the afternoon window. That is 13 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 84 flights scheduled in it.
Across the year
Republic on PHL to RDU through the year
- Oct–Dec 202524 flights—
- Jan–Mar 202699 flights80.4%
- Apr–Jun 202692 flights91.3%
Scale runs 70% to 95%. 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 83.2% on time across 215 flights.
Split by quarter, Republic on PHL to RDU logged 24 flights in Oct–Dec 2025, 99 flights in Jan–Mar 2026 and 92 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 83.2% annual figure is the one to use.
Across the week, Tuesday is the strongest day at 90.0% on time and Friday the weakest at 73.3%. 17 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Republic runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 61% of the 2,625 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.
- 61%Late-arriving aircraft
- 20%Carrier
- 19%National Airspace System
61% 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 2,625 reported delay minutes here, that single category outweighs weather by 61 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 2,625 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 95.1% on time here.
Cancellations run at 3.26%, against 1.81% nationally. That is about one flight in 30 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
7.2% 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 a little over an hour, which a normal layover absorbs.
At 337 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 8am–11am window matters as much as it does.
The return leg runs 85.0% on time across 216 flights, within 2 points 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. 215 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 PHL to RDU
Put together: the delay figures matter less here than the 3.26% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 208 completed flights over 12 months sit behind that.
Related
Where to go next
- PHL to RDU, every carrier
- Republic on RDU to PHL, the return leg
- Frontier Airlines on PHL to RDU81.2%
- PSA Airlines on PHL to RDU72.9%
- American Airlines on PHL to RDU71.3%
- Republic Airways network-wide record
- Philadelphia International (PHL) delay statistics
- Raleigh-Durham International (RDU) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.