HNL to IAD flight delays & on-time performance
Nonstop flights from Daniel K. Inouye International Airport to Washington Dulles International Airport · 4,816 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at HNL or IAD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Honolulu (HNL) to Washington (IAD) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 4.2% were cancelled, and 7% arrived an hour or more late.
- United Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 5pm did best (83% on time); around 4pm did worst (78%).
- Thursday was the most reliable day to fly (96% on time) and Sunday the least (74%).
- The largest source of delay minutes was late-arriving aircraft (69%).
Which airline is most on time from HNL to IAD?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 82% | 4.2% | 16 min | 6.9% | 168 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 3pm82%70 flights
- 4pm78%19 flights
- 5pm83%79 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday81%0.0% cancelled
- Tuesday90%0.0% cancelled
- Wednesday78%0.0% cancelled
- Thursday96%0.0% cancelled
- Friday82%4.3% cancelled
- Saturday76%8.0% cancelled
- Sunday74%9.5% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft69%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion2%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)71%
- Extreme weather29%
- Air traffic control & airport congestion0%
- Security0%
HNL to IAD: common questions
- How often are HNL to IAD flights on time?
- 82% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Honolulu to Washington cancelled?
- 4.2% of scheduled flights were cancelled (7 of 168).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 86 min behind schedule on average, and 6.9% of flights were an hour or more late.
- How long is taxi time at HNL?
- Flights on this route spent 20 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAD to HNL — 76% on time
More flights from Honolulu
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: HNL → IAD, nonstop flights by US airlines that report to the DOT. How we calculate this.