FlightRecord

Washington (IAD) to Honolulu (HNL): On-Time Performance

Data through July 2026

Washington (IAD) to Honolulu (HNL) is a thinner route than most in this dataset — 168 departures over the past year, roughly 3 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 78% arrived on time.

On-time
78%
arrived <15 min late
Avg delay
21 min
completed flights
Cancelled
1.0%
Flights/day
0.46
last 12 months
Duration
10h 43m
scheduled
Distance
4,816 mi

Monthly on-time trend

Monthly on-time percentage for IAD to HNL flights50%75%100%August 2024: 80% on-time (5 flights)80Aug 2024September 2024: 75% on-time (4 flights)75October 2024: 100% on-time (4 flights)100November 2024: 100% on-time (5 flights)100Nov 2024December 2024: 80% on-time (15 flights)80January 2025: 78% on-time (27 flights)78February 2025: 92% on-time (24 flights)92Feb 2025March 2025: 89% on-time (27 flights)89April 2025: 78% on-time (18 flights)78May 2025: 75% on-time (5 flights)75May 2025June 2025: 75% on-time (4 flights)75July 2025: 75% on-time (4 flights)75August 2025: 80% on-time (5 flights)80Aug 2025September 2025: 100% on-time (4 flights)100October 2025: 100% on-time (4 flights)100November 2025: 100% on-time (5 flights)100Nov 2025December 2025: 81% on-time (16 flights)81January 2026: 84% on-time (27 flights)84February 2026: 72% on-time (25 flights)72Feb 2026March 2026: 93% on-time (27 flights)93April 2026: 80% on-time (10 flights)80May 2026: 80% on-time (5 flights)80May 2026June 2026: 22% on-time (9 flights)22July 2026: 52% on-time (31 flights)52

Best time to fly from IAD to HNL

By day of week

DayOn-timeAvg delay
Monday81%24 min
Tuesday55%19 min
Wednesday66%29 min
Thursday78%10 min
Friday76%15 min
Saturday82%24 min
Sundaybest87%19 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft17%
  • Airline operations64%
  • National airspace system16%
  • Weather3%

Frequently asked questions

How often are flights from IAD to HNL delayed?
22% of IAD–HNL 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 21 minutes.
How long is the flight from IAD to HNL?
The scheduled IAD–HNL flight time averages 10h 43m over 4,816 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
How often are IAD to HNL flights cancelled?
1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
What day of the week is most reliable for IAD to HNL?
Sunday flights have the best record at 87% on-time. Day-of-week differences on this route are meaningful — Wednesday trails at 66%.

Based on 314 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.