Washington (IAD) to West Palm Beach/Palm Beach (PBI): On-Time Performance
Data through May 2026
Washington (IAD) to West Palm Beach/Palm Beach (PBI) is a thinner route than most in this dataset — 334 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 81% arrived on time.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 1.1%
- Flights/day
- 0.92
- last 12 months
- Duration
- 2h 42m
- scheduled
- Distance
- 859 mi
Monthly on-time trend
Best time to fly from IAD to PBI
Aim for departures around 6 p.m. (91% on-time); avoid 9 a.m. departures (77%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 75% | 28 min |
| Tuesdaybest | 86% | 7 min |
| Wednesday | 85% | 18 min |
| Thursday | 80% | 11 min |
| Friday | 78% | 23 min |
| Saturday | 85% | 6 min |
| Sunday | 79% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft35%
- Airline operations26%
- National airspace system35%
- Weather4%
Frequently asked questions
- How often are flights from IAD to PBI delayed?
- 19% of IAD–PBI 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 16 minutes.
- What is the best time of day to fly from IAD to PBI?
- Departures around 6 p.m. have the best record (91% on-time), while departures around 9 a.m. have the worst (77%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from IAD to PBI?
- The scheduled IAD–PBI flight time averages 2h 42m over 859 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are IAD to PBI flights cancelled?
- 1.1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What day of the week is most reliable for IAD to PBI?
- Tuesday flights have the best record at 86% on-time. Day-of-week differences on this route are meaningful — Monday trails at 75%.
Explore related pages
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Based on 374 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.