Flight Reliability
HA 1121 · Hawaiian Airlines
Hilo → Honolulu (ITO–HNL)
76
Usually Fine
WanderNerd Reliability Score
- 69%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 0%
- Cancelled
- 8 min
- Median arrival delay
Based on 62 historical flights. Data through May 2026.
What the data says
6–9 PM has a slight edge.
Departures between 6–9 PM arrived on time 73% of the time, against 68% between 9 PM–12 AM.
Sunday scaries are real for this one.
HA 1121 arrived on time 80% of the time on Mondays and just 40% on Sundays. That gap is worth planning around.
Well behind the ITO–HNL route.
HA 1121 arrived on time 69% of the time, versus 85% across the ITO–HNL route.
Lagging the Hawaiian Airlines network.
HA 1121 arrived on time 69% of the time, versus 83% across the Hawaiian Airlines network.
The breakdown
- Mon80%(10 flights)
- Tue70%(10 flights)
- Wed—(8 flights)
- Thu—(7 flights)
- Fri—(8 flights)
- Sat—(9 flights)
- Sun40%(10 flights)
- 6–9 PM73%(15 flights)
- 9 PM–12 AM68%(47 flights)
- Departures on time
- 73%
- Diverted
- 0%
- Flights flown
- 62
- Months covered
- 3
Same route, other flights
Keep nerding
Based on 62 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.