Philadelphia (PHL) to Washington (IAD): On-Time Performance
Data through May 2026
Philadelphia (PHL) to Washington (IAD) is a thinner route than most in this dataset — 119 departures over the past year, roughly 2 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 83% arrived on time. Cancellations are the bigger caveat: 4.8% of scheduled flights never departed.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 8 min
- completed flights
- Cancelled
- 4.8%
- Flights/day
- 0.33
- last 12 months
- Duration
- 1h 9m
- scheduled
- Distance
- 135 mi
Monthly on-time trend
Best time to fly from PHL to IAD
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 83% | 6 min |
| Tuesday | 82% | 6 min |
| Wednesday | 94% | 3 min |
| Thursday | 77% | 10 min |
| Friday | 67% | 14 min |
| Saturdaybest | 100% | 3 min |
| Sunday | 89% | 9 min |
Frequently asked questions
- How often are flights from PHL to IAD delayed?
- 17% of PHL–IAD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 8 minutes.
- How long is the flight from PHL to IAD?
- The scheduled PHL–IAD flight time averages 1h 9m over 135 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are PHL to IAD flights cancelled?
- 4.8% of scheduled flights on this route were cancelled between 2024-06 and 2026-05 — several times the typical US rate, so consider earlier departures or backup options.
Explore related pages
More routes from PHL
Based on 124 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.