Greensboro/High Point (GSO) to Philadelphia (PHL): On-Time Performance
Data through July 2026
Greensboro/High Point (GSO) to Philadelphia (PHL) is a thinner route than most in this dataset — 135 departures over the past year, roughly 3 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 67% arrived on time, noticeably below the national average of 78%. Cancellations are the bigger caveat: 6% of scheduled flights never departed.
- On-time
- 67%
- arrived <15 min late
- Avg delay
- 36 min
- completed flights
- Cancelled
- 6.0%
- Flights/day
- 0.37
- last 12 months
- Duration
- 1h 34m
- scheduled
- Distance
- 365 mi
Monthly on-time trend
Best time to fly from GSO to PHL
Aim for departures around 11 a.m. (73% on-time); avoid 5 p.m. departures (60%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 22 min |
| Tuesday | 78% | 23 min |
| Wednesday | 55% | 38 min |
| Thursday | 65% | 21 min |
| Friday | 59% | 80 min |
| Saturdaybest | 81% | 30 min |
| Sunday | 62% | 36 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft49%
- Airline operations29%
- National airspace system15%
- Weather7%
Frequently asked questions
- How often are flights from GSO to PHL delayed?
- 33% of GSO–PHL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 36 minutes.
- What is the best time of day to fly from GSO to PHL?
- Departures around 11 a.m. have the best record (73% on-time), while departures around 5 p.m. have the worst (60%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from GSO to PHL?
- The scheduled GSO–PHL flight time averages 1h 34m over 365 miles. Actual arrival times vary — flights on this route land 15+ minutes late 33% of the time.
- How often are GSO to PHL flights cancelled?
- 6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07 — several times the typical US rate, so consider earlier departures or backup options.
- What day of the week is most reliable for GSO to PHL?
- Tuesday flights have the best record at 78% on-time. Day-of-week differences on this route are meaningful — Wednesday trails at 55%.
Explore related pages
More routes from GSO
Other ways to fly to Philadelphia (PHL)
Related guides
Based on 235 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.