Route Reliability
Philadelphia → Raleigh–Durham
PHL–RDU · 337 miles · Philadelphia International Airport to Raleigh–Durham International Airport
- 76%
- Arrive within 15 minutes
- 11 min
- Average arrival delay
- 2.1%
- Cancelled
- 2,657
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Frontier Airlines82%565 flights
- 2.American Airlines74%2,092 flights
What the data says
Morning flights do better here.
PHL–RDU flights departing between 3–6 AM arrived on time 92% of the time, versus 65% between 3–6 PM.
Sunday scaries are real for this one.
PHL–RDU flights arrived on time 81% of the time on Tuesdays. On Sundays: 71%.
Frontier Airlines runs this route best.
Frontier Airlines arrived on time 82% of the time on this route; American Airlines managed 74%.
Trending in the right direction.
PHL–RDU flights arrived on time 83% of the time over the last three months in the data, compared with 72% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon75%(407 flights)
- Tue81%(347 flights)
- Wed80%(349 flights)
- Thu75%(387 flights)
- Fri75%(420 flights)
- Sat75%(293 flights)
- Sun71%(395 flights)
- 3–6 AM92%(25 flights)
- 6–9 AM87%(456 flights)
- 9 AM–12 PM79%(567 flights)
- 12–3 PM76%(548 flights)
- 3–6 PM65%(412 flights)
- 6–9 PM68%(386 flights)
- 9 PM–12 AM74%(204 flights)
Jun 70% → May 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 70% | 241 |
| July 2025 | 70% | 232 |
| August 2025 | 70% | 241 |
| September 2025 | 84% | 230 |
| October 2025 | 75% | 247 |
| November 2025 | 76% | 192 |
| December 2025 | 61% | 193 |
| January 2026 | 76% | 180 |
| February 2026 | 79% | 170 |
| March 2026 | 79% | 192 |
| April 2026 | 85% | 235 |
| May 2026 | 86% | 245 |
Keep nerding
Based on 2,657 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.