SEA to HNL flight delays & on-time performance
Nonstop flights from Seattle–Tacoma International Airport to Daniel K. Inouye International Airport · 2,677 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SEA or HNL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Seattle (SEA) to Honolulu (HNL) arrived on time 66% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.9% were cancelled, and 9% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (77% on time); Hawaiian Airlines was the least (61%).
- Departures scheduled around 8am did best (79% on time); around 8pm did worst (40%).
- Wednesday was the most reliable day to fly (70% on time) and Friday the least (58%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (69%).
Which airline is most on time from SEA 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 |
|---|---|---|---|---|---|
| Delta Air Lines | 77% | 0.4% | 14 min | 4.9% | 789 |
| Alaska Airlines | 62% | 0.9% | 27 min | 9.9% | 1,541 |
| Hawaiian Airlines | 61% | 1.7% | 38 min | 11.8% | 603 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am74%382 flights
- 8am79%439 flights
- 9am62%111 flights
- 10am65%255 flights
- 11am61%233 flights
- 12pm66%138 flights
- 1pm51%109 flights
- 2pm78%82 flights
- 3pm62%319 flights
- 4pm65%217 flights
- 5pm62%248 flights
- 6pm62%178 flights
- 7pm75%56 flights
- 8pm40%148 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday65%0.7% cancelled
- Tuesday66%0.5% cancelled
- Wednesday70%0.2% cancelled
- Thursday68%0.2% cancelled
- Friday58%1.7% cancelled
- Saturday69%1.2% cancelled
- Sunday65%1.9% 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)69%
- Late-arriving aircraft18%
- Air traffic control & airport congestion12%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)93%
- Extreme weather7%
- Air traffic control & airport congestion0%
- Security0%
SEA to HNL: common questions
- How often are SEA to HNL flights on time?
- 66% 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 Seattle to Honolulu cancelled?
- 0.9% of scheduled flights were cancelled (27 of 2,933).
- How long are typical delays?
- Across all flights the average arrival delay was 25 min (early arrivals count as zero). Flights that were late arrived 70 min behind schedule on average, and 9.0% of flights were an hour or more late.
- How long is taxi time at SEA?
- Flights on this route spent 23 min taxiing from the gate to takeoff on average.
Related routes
Return trip: HNL to SEA — 75% on time
More flights from Seattle
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SEA → HNL, nonstop flights by US airlines that report to the DOT. How we calculate this.