United Airlines IAD to PBI on-time performance
United Airlines nonstop flights from Washington to West Palm Beach/Palm Beach · Aug 2025 – Jul 2026
On-time arrivals
81%
arrived < 15 min late
Cancelled
1.3%
4 flights
Avg arrival delay
16 min
80 min when late
Rank on route
#2 of 2
route average 81% on time
Key facts
- United Airlines flights on IAD to PBI arrived on time 81% of the time in Aug 2025 – Jul 2026.
- 1.3% were cancelled, and 8% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 81% on time overall.
- The largest source of delay minutes was late-arriving aircraft (42%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft42%
- Air traffic control & airport congestion32%
- Airline (crew, maintenance, cleaning, fueling)22%
- Extreme weather5%
- Security0%
Other airlines on IAD to PBI
- Republic Airways83% on time · 7 min avg delay
Full IAD to PBI comparison →
United Airlines on-time record across all routes →
303 United Airlines flights tracked on this route; 4 cancelled, 1 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.