Route profile
PIT→RDU
Flight reliability, delays and best times to fly from Pittsburgh to Raleigh–Durham, 328 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 93% of comparable major US routes (4,598 compared)
Calculated from 2,205 flights. How this is calculated
PIT → RDU arrives on time 88.1% of the time; the return trip, RDU → PIT, arrives on time 86.9% of the time.
PIT → RDU spends 25.3 minutes on the ground on a 328-mile trip: 14.9 minutes from pushback to wheels-up at PIT and 10.4 minutes from touchdown to gate at RDU.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
This route stays close to typical even on its worst days, a smaller gap than 93% of 4,598 comparable routes.
A typical arrival is 11 min early, and the worst tenth are only 30 minutes worse than that.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 4,598 in the comparison.
What sets this route apart
Where PIT to RDU differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
PIT to RDU is at its best against routes of similar length for flights scheduled at 5 PM: 82.5% arrive on time, 9.8 points ahead of the 72.7% those routes manage at that hour. Against all other routes the gap is 12.7 points.
PIT to RDU holds up on Thursdays better than routes of similar length do: 88.5% on time to their 78.4%, a 10.1 points lead. Against all other routes the gap is 11.7 points.
October is kinder to PIT to RDU than to routes of similar length: 96.1% on time against 83.1%, 13 points better. Against all other routes the gap is 13.1 points.
Republic Airways does better on PIT to RDU than on its routes of similar length: 89.0% on time here, 83.7% there, 5.3 points apart. Against all other routes the gap is 6.9 points.
PIT to RDU against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 5 PM departures | 82.5% | routes of similar length | 72.7% | +9.8 pts | 658 here, 71,931 there |
| Weekday: Thursday | 88.5% | routes of similar length | 78.4% | +10.1 pts | 312 here, 169,646 there |
| Month: October | 96.1% | routes of similar length | 83.1% | +13.0 pts | 179 here, 99,584 there |
| Airline: Republic Airways | 89.0% | routes of similar length | 83.7% | +5.3 pts | 2,079 here, 93,040 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 328 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
When it goes wrong
July 2023 – July 2026
19 min late
against a median of 11 min early
Percentiles over 2,205 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at RDU after arriving from PIT.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 21% | High risk |
| 45 min | 11% | Some risk |
| 60 min | 7.1% | Some risk |
| 90 min | 3.7% | Low risk |
| 120 min | 2.1% | Low risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.27% of the time and diverts 0.14% of the time, which a late arrival never shows up in.
Chance of missing is the share of 2,174 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 19 minutes late (90th-percentile gate arrival delay), over 2,205 operations.
Any other layover length: connection checker.
Why PIT → RDU runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for PIT → RDU. Only delays of 15 minutes or more are attributed.
Late-arriving aircraft is the largest cause on PIT → RDU, at 45.7%: flights here mostly leave late because the plane came in late.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| Republic Airways | 2,103 | 89.0% | 1.00% | -11 min | 3.3% |
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
| Flight | Scheduled | Operations | On time |
|---|---|---|---|
| YX4531 Republic Airways | 6:00 AM | 838 | 95.0% |
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Sunday the least, a gap of 5.2 percentage points.
By month
- Jan: 89.1%
- Feb: 88.6%
- Mar: 93.1%
- Apr: 90.3%
- May: 86.7%
- Jun: 83.5%
- Jul: 79.9%
- Aug: 85.2%
- Sep: 91.3%
- Oct: 96.1%
- Nov: 92.6%
- Dec: 85.4%
July is historically the weakest month and October the strongest, a spread of 16.2 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 85.7% against 88.5% in the 12 months before — declining by 2.8 percentage points.
Data and methodology
Calculated by FlyerIntel from 2,205 PIT → RDU flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed