Seattle (SEA) to Lihue (LIH): On-Time Performance
Data through May 2026
The calendar drives reliability on SEA–LIH. August 2024 flights landed on schedule 91% of the time, but March 2026 dropped to 57% — a gap of 34 points. Across the full period the route averages 76% on-time against a national 78%.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 3.0
- last 12 months
- Duration
- 6h 19m
- scheduled
- Distance
- 2,700 mi
Best airline from SEA to LIH
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 80% | 14 min | 1.5% | 730 |
| Alaska Airlines | 75% | 13 min | 0.3% | 1,440 |
Monthly on-time trend
Best time to fly from SEA to LIH
Aim for departures around 8 a.m. (82% on-time); avoid 11 a.m. departures (62%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 14 min |
| Tuesday | 77% | 12 min |
| Wednesday | 79% | 13 min |
| Thursdaybest | 79% | 10 min |
| Friday | 71% | 17 min |
| Saturday | 75% | 16 min |
| Sunday | 79% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft33%
- Airline operations42%
- National airspace system23%
- Weather2%
Frequently asked questions
- How often are flights from SEA to LIH delayed?
- 24% of SEA–LIH flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 14 minutes.
- Which airline is most reliable from SEA to LIH?
- Delta Air Lines has the best on-time record on this route at 80%, based on 730 flights. 2 airlines flew SEA–LIH frequently enough to compare in this period.
- What is the best time of day to fly from SEA to LIH?
- Departures around 8 a.m. have the best record (82% on-time), while departures around 11 a.m. have the worst (62%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SEA to LIH?
- The scheduled SEA–LIH flight time averages 6h 19m over 2,700 miles. Actual arrival times vary — flights on this route land 15+ minutes late 24% of the time.
- How often are SEA to LIH flights cancelled?
- 0.7% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from SEA to LIH?
- March 2026 was the roughest month in this dataset, with only 57% of arrivals on time. The best was August 2024 at 91%. If your dates are flexible, that 34-point gap is worth planning around.
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Based on 2,170 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.