IAD to HNL flight delays & on-time performance
Nonstop flights from Washington Dulles International Airport to Daniel K. Inouye International Airport · 4,816 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at IAD or HNL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Washington (IAD) to Honolulu (HNL) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.2% were cancelled, and 6% arrived an hour or more late.
- United Airlines is the only airline reporting nonstop flights on this route.
- Monday was the most reliable day to fly (85% on time) and Thursday the least (65%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (70%).
Which airline is most on time from IAD to HNL?
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 | 76% | 1.2% | 16 min | 6.1% | 168 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
Not enough departures across different hours to compare.
Best day of the week
On-time arrival rate by day of departure.
- Monday85%4.8% cancelled
- Tuesday56%0.0% cancelled
- Wednesday71%0.0% cancelled
- Thursday65%0.0% cancelled
- Friday73%0.0% cancelled
- Saturday80%0.0% cancelled
- Sunday84%4.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)70%
- Air traffic control & airport congestion24%
- Extreme weather4%
- Late-arriving aircraft2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
IAD to HNL: common questions
- How often are IAD to HNL flights on time?
- 76% 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 Washington to Honolulu cancelled?
- 1.2% of scheduled flights were cancelled (2 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 62 min behind schedule on average, and 6.1% of flights were an hour or more late.
- How long is taxi time at IAD?
- Flights on this route spent 23 min taxiing from the gate to takeoff on average.
Related routes
Return trip: HNL to IAD — 82% on time
More flights from Washington
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: IAD → HNL, nonstop flights by US airlines that report to the DOT. How we calculate this.